-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
The new 70-300mm f/4-5.6L is potentially the most interesting of the lineup, but franklyI'm pretty thoroughly<span class="bbc_u"]unimpressed by this new lens.
Sounds premature at this point since we have not had a chance to hold it, try it or even see some samples. For those of us who know you just bought the DO it also sounds a bit like sour grapes. Maybe not but that is how you come across.
I'm probably mistaken about not extending, although it would be nice. Good point, I read too fast.
I think DO is dead for a few reasons: 1) nothing in over 4 years from Canon or Nikon. 2) newest releases don't have it as of today. 3) smaller sensor development with higher resolution over the past 4 years may have killed it alone because I think they would highlight its shortcomings regarding IQ. 4) high price for inferior IQ from 200-300mm (my opinion based on samples I saw). 5) bad press
If the new lens is better the price of a used 70-300 DO is going to plummet.
Tom
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
This is the BEST time for those who want to buy the 300 f/2.8L IS, 400 f/2.8L IS and 500 f/4L IS and 600 f/4L IS.Since new lenses cost so much, the prices of the old ones would stay the same until they're all sold out. If you wait, your only option is to go with the new and very expensive lens.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
This is the BEST time for those who want to buy the 300 f/2.8L IS, 400 f/2.8L IS and 500 f/4L IS and 600 f/4L IS.Since new lenses cost so much, the prices of the old ones would stay the same until they're all sold out. If you wait, your only option is to go with the new and very expensive lens.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Tom Wertman
Sounds premature at this point...
<div>Yes, it definitely was. [:P] It's not what I was hoping for, but that's no reason to bash it! </div>
Quote:
Originally Posted by Tom Wertman
Sounds premature at this point since we have not had a chance to hold it, try it or even see some samples. For those of us who know you just bought the DO it also sounds a bit like sour grapes. Maybe not but that is how you come across.
Well, I'll admit that I was really hoping for a 35mm f/1.4L II. Overall, of the 50% of the announced lenses that cost less than several thousand dollars, two are teleconverters, one is a fisheye zoom (why??), and one is the lens we are discussing. That part is sour grapes, for sure. I'll have to content myself with the hope that some shorter and improved primes (and one notably absent zoom) are announced with a 1DsIV (before Photokina??).
I don't plan on pre-ordering the new 70-300. But it's not sour grapes - I really like my 70-300mm DO for it's size - it's incredibly convenient, equivalent to the 17-55mm and 24-105mm, fits perfectly in a Lowepro Lens Case 1W slip-locked to the side of a Lowepro Toploader Pro 65AW for a quite versatile, convenient and small (for a dSLR) kit. But I had no illusions - I knew was sacrificing IQ in favor of a smaller size, compared to the 100-400mm. With this new lens, it seems likely that I wouldn't besacrificing IQ, although the size decrease compared to the 100-400mm is less than for the DO lens.
Quote:
Originally Posted by Tom Wertman
If the new lens is better the price of a used 70-300 DO is going to plummet.
If I'd just bought the DO lens new, I'd definitely be feeling sour - you're right! But since this new lens will likely debut at full MSRP ($1500), and I paid 35% less than the going retail cost of the DO, I can sell it for half the cost of the new lens and still come out even. (As a side note, when the 70-200mm f/2.8 IS II came out at a cost of several hundred more than the MkI, the retail price of the MkI went up, and the used lens prices rose in parallel). Either way, a hundred dollars or two is not that big a deal for me, so it's win-win.
I think you were wise not to jump on the DO, though, Tom - you're right in that if this new lens has better IQthan the DO(as I'm sure it well and the MTF charts support), and you are fine with the larger lens, this new 70-300mm L might be great for you (and perhaps me, as well, we'll see...)!
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
I'll.... hope that some shorter and improved primes (and one notably absent zoom) are announced with a 1DsIV (before Photokina??).
I also think that this is going to happen! We all know that the 1Ds MkIV is right around the corner. What better place to announce it, then at Photokina at the end of September?
If true, as most people speculate, then I can't imagine Canon is going to announce their new Flagship Body and then say.., oh.., by the way the 1Ds MKIV, will also work great with our new 70-300mm f/4-5.6L IS, or our upgraded big white lenses and extenders ...., NOT!
So.., I think there will be some new and exciting prime and/or zoom lenses announced, to compliment their new 1Ds MKIV.
Rich
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Man this is one #$%#% expensive hobby!
$500 for the new TCs eh? yikes. I understand they're supposed to be much better than the current models...and at nearly twice the price I certainly expect them to be.
And what's with the vari-aperture "L"? I thought that was an oxymoron - "L" glass is supposed to be constant aperture, that's what makes is a "luxury!" It's a nice-looking hunk of glass and all but I'll be danged if I'm going to pay $1500 for f/5.6 - unless we're in the super-tele line of course. I can't see spending anywhere near a thousand dollars for a lens that doesn't open up past f/4. Ridiculous!
Seriously, f/4 is bad enough. I just bought the 70-200 f/4 because I figured I'd carry it more often than my 2.8. The jury is still out since I've only had it a week, but at $600 at least I don't feel I got robbed. But $1500 for a 4-5.6...and I'm guessing by 200mm it'll be 5.6. Ugh. I don't know Canon, you lost me with this round of products...
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by canoli
Man this is one #$%#% expensive hobby!
$500 for the new TCs eh? yikes. I understand they're supposed to be much better than the current models...and at nearly twice the price I certainly expect them to be.
A crop body is the best 1.6 TC that you lose not IQ to get. If I have a FF body, I'll just pick up a used crop body for less than $500 and won't bother with the TC. If I'm using a crop body, chances are, I won't care much for TC, much less a $500 TC that's almost the same cost as my camera body.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by canoli
And what's with the vari-aperture "L"?...I can't see spending anywhere near a thousand dollars for a lens that doesn't open up past f/4.
The 100-400mm, which is a very good wildlife lens, is formally the EF 100-400mm f/4.5-5.6<span style="color: red;"]L IS USM - variable aperture and at it's shortest/fastest end it isn't even as wide as f/4. List price for that lens is $1800, and street price is usually ~$1600. I have one and use itfrequently- it's a great lens.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
and for the people still holding off on the 24-70 2.8, waiting for the IS version...well keep just crossing your fingers [:P]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
The new extenders, hmmmm... The possible bright spot for me in these announcements is an optically improved 2x III Extender - I'll wait until Bryan gets one in his hands and tests it with the 70-200mm II. The 100-400mm is optically superior to the 70-200 II + 2x II Extender, but if the 70-200mm II + 2x III is optically equal to the 100-400mm that would give a weather-sealed 140-400mm f/5.6 with 4-stop IS (well worth losing 2/3 of a stop at the short end).
neuroanatomist, let's say even the TC II is as good as what you want, the 140-400mm 5.6 with 4 stop IS will still has slower AF speed, this might make this lens tc combo almost useless for faster moving subject, and the cost, $3000?!
not even mentioned this
"Each extender also features a newly developed microcomputer that
increases AF precision when the extenders are used with a IS Series II
EF super-telephoto lens."
I have to admit that I really really like and respect your "nerd-ified" posts here, but every time I look at your lens line and wonder why not trade some of your lenses for a big white lens since you already put a lot of money on it?[*-)]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by JJphoto
I have to admit that I really really like and respect your "nerd-ified" posts here, but every time I look at your lens line and wonder why not trade some of your lenses for a big white lens since you already put a lot of money on it?
Thanks!
It's a fair question - I guess the answer has two parts. One, I like the lenses I have, and get a fair amount of use from all of them (except the 85mm f/1.8, which I hadn't used since I got the 85L - so yesterday, I sold the 85/1.8) - the combination of a bunch of good lenses allows me the versatility I want, since I shoot all kinds of subjects. Two, when I look at the price tag of a longer supertele (for me, the 500mm f/4L is the most interesting), and I compare that to the likely price tag of a forthcoming 1DsIV, I think I'd be better-served for much of my shooting by a FF body with excellent AF.
Now, if Canon comes out with a 5DIII that offers improved AF relative to the 5DII...then I'll get that and I might start thinking supertele.
Of course, given the ratio of MkI to MkII for the just-announced 300mm and 400mm supertele's, the 500mm f/4L IS II is likely to be in the >$10K range. True, I've spent in that range on my current lens collection, but I just don't see myself paying that much for a single prime lens.
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
That gives me an idea - since I'm a neuroscientist working for a pharmaceutical company, maybe I should push for development of a drug to treat <span style="color: red;"]L-disease. [8-|]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
A 100-400L? From Canon? never heard of it...[:P]
I've shot the 100-400 and I like it, but for the price I don't love it, like the 28-300 or the 35-350 before that. I just think spending close to 2 grand for glass that doesn't open up wider than 5.6 is crazy (super-teles aside). The strengths of such lenses are obvious; I just wish Canon would quit making vari-aperture L glass because the weaknesses of those lenses are obvious too.
I suppose it always comes down to a personal choice, what you value, what your budget is. I'm glad you like your 100-400L. If you ever change your mind about it and want to pick up a quick three hundred, call me! hehe...
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S
You're really awful haha! They say: sick minds think alike, but I guess I'm just not as sick as you are...
Quote:
Originally Posted by neuroanatomist
Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
What will happen in the next 24h? I would laugh my @$$ of if you showed serious interest in the new fish-eye lens hehe [:D]
Anyway please keep your money in your pocket until some decent test results get out [;)] Oh yes...or spend your money towards anti L-disease drugdevelopment(al)
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by canoli
I just think spending close to 2 grand for glass that doesn't open up wider than 5.6 is crazy. The strengths of such lenses are obvious; I just wish Canon would quit making vari-aperture L glass because the weaknesses of those lenses are obvious too.
True, but I suppose compromises have to be made somewhere. Compare Canon's 100-400mm f/4.5-5.6 with Nikon's 200-400mm f/4 - the Nikon lens with it's constant f/4 aperture is 2.5 times the weight, several inches longer, and has a list price 3-4 times higher (for the Nikon I/II versions, respectively) than Canon's variable-aperture zoom in the same approximate focal range.
But I agree with you - I really like the 100-400mm, but I don't 'love' it (even without considering cost). Frankly, it's not even about the f/5.6 at the long end - when shooting small, somewhat close subjects like birds at 400mm, the DoF with f/5.6 is often too thin. If Canon made a a 500mm f/5.6L IS for under $2.5K, I'd take that over the 100-400mm, and I'd be sorely tempted by a sub-$2K400mm f/5.6L IS as well.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Sheiky
What will happen in the next 24h? I would laugh my @$ of if you showed serious interest in the new fish-eye lens hehe
Oooo...a fisheye zoom. Cool!! [:P] Nope, sorry, not seeing it. If I decide to spend that much on what would probably be a rarely used lens, I think I'd get a 17mm or 24mm TS-E.
Quote:
Originally Posted by Sheiky
Anyway please keep your money in your pocket until some decent test results get out
Absolutely. Plus, as Rich pointed out earlier, if they're going to announce a 1DsIV for Photokina, it seems likely that they'll announce at least one lens, maybe two, along with that.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
Oh yeah! It's been confirmed, "L" disease. You've got a bad case of it and I'm not even a doctor. LOL!!
Tom
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Wow,
Am I the only one who is happy with their current glass and body kit, has no desire to add or remove kit?
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Tom Wertman
<div id="ctl00_ctl00_bcr_bcr_PostForm__QuoteText"]
Quote:
Originally Posted by neuroanatomist
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
Oh yeah! It's been confirmed, "L" disease. You've got a bad case of it and I'm not even a doctor. LOL!!
Tom
</div>
I have been trying to avoid this thread on purpose and yetthis morning I caught myself trying to find applications forthe newfisheye!
I thinkit is time tofound a PA (Photogrphers Anonymous) fellowship [:P]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
That gives me an idea - since I'm a neuroscientist working for a pharmaceutical company, maybe I should push for development of a drug to treat <span style="color: red;"]L-disease. [img]/emoticons/emotion-15.gif[/img]
I guess I have different type of L disease, my symptom is that instead of using different lens for different situation, I tend to use my 300mm 2.8 for everything to get best IQ I can, sure sometimes it looked so ridiculous by holding a big white lens in my kids kindergarten but couldn't help it at all... and I guess there is no drug for that since we want to be sick like that. sorry, sounds like way off the subject.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by JJphoto
I tend to use my 300mm 2.8 for everything to get best IQ I can
Hmmm...an 8' MFD and something like 30' distance to frame a toddler (or closer to 50' if you have a crop body)...I guess you must have some pretty big rooms in your house, 'eh? Or you get a lot of shots with a nose and one eye...[:P]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
<div style="CLEAR: both"]</div>
I am in the process of getting all of my lenses and had been thinking that I'd get a 70-200 f/4 soon and the 100-400 L later....but the 70-300 L seems likesuch anice compromise lens (if the reviews/IQ are good) that I've spent part of my morning assessing whether I'll reallyneed the 300-400mm range. [:)]
I am beginning to think I don't as, on my 7D, my diagonal FOV is 5.1 degrees at 300 mm and 3.8 degrees at 400 mm (if my calcs are correct).
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Kayaker72
I've spent part of my morning assessing whether I'll reallyneed the 300-400mm range.
I am beginning to think I don't as, on my 7D, my diagonal FOV is 5.1 degrees at 300 mm and 3.8 degrees at 400 mm (if my calcs are correct).
Personally, when I use my 100-400mm on my 7D,I am often (but not always) at 400mm. It really comes down to what you're trying to shoot, and how from it you are. If you're shooting birds and wildlife out in nature, generally the longer the focal length, the better (the main restrictions are how much you're willing to carry and your budget). If your 'birds andwildlife' is parakeets in your living room and large animals in zoo enclosures, longer focal lengths are less important.
You might find Bob Atkins FOV Calculator handy (scroll down a bit) - you can enter focal length, crop factor, and distance and it will calculate the XY dimensions of your field.
For example, with a 300mm lens on a 7D, at 15 feet from a subject, the FOV is 13.5x9". If that subject is a pretty, yellow goldfinch on a branch, that 4" tall bird will occupy 6.6% of the image frame. With a 400mm lens in that scenario, the bird will occupy 11.7% of the image. Either way, the shot is probably going to require some cropping, but the extra 100mm of focal length means only about half as much cropping, and therefore less noise in the final image. Then again, if all you intend is posing images here and printing 4x6" photos, crop away...
You're right in that this new 70-300mm L does seem like a clear compromise between the 70-200mm f/4L IS and the 100-400mm. But the MTF charts seem to show the new 70-300mm L is slightly sharper than the 70-200mm f/4L IS, which is in turn sharper than the 100-400mm. So, if the new 70-300mm is a compromise between the two on focal length and aperture, but as sharp as or sharper than the 70-200mm f/4L IS, it's a pretty good compromise.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Tom Wertman
Quote:
Originally Posted by neuroanatomist
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
Oh yeah! It's been confirmed, "L" disease. You've got a bad case of it and I'm not even a doctor. LOL!!
Tom
<div style="CLEAR: both"]</div>
Quote:
Originally Posted by Tom Wertman
Quote:
Originally Posted by neuroanatomist
Then again, when I first posted in this thread, I didn't see myself interested in the EF 70-300mm f/4-5.6L IS, at all. Yet this morning, I found myself with a ruler, confirming that the new 70-300mm would fit in Lens Case 2S and thus still workslip-locked to the side of a Lowepro Toploader Pro 65AW with 7D and standard zoom inside, for a quite versatile, convenient and small enough kit. Apparently, in 24 hours I've gone from being unimpressed with this new L lens to strongly considering purchasing it to replace my 70-300mm DO.
Oh yeah! It's been confirmed, "L" disease. You've got a bad case of it and I'm not even a doctor. LOL!!
Tom
<div style="CLEAR: both"]</div>
Beware, The "L" disease if not treated properly will turn in to "L Prime". The disease will cost you at least 3 times as much to treat and in some cases even more.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by JJphoto
Quote:
Originally Posted by neuroanatomist
That gives me an idea - since I'm a neuroscientist working for a pharmaceutical company, maybe I should push for development of a drug to treat <span style="color: #ff0000;"]L-disease. [img]/emoticons/emotion-15.gif[/img]
I guess I have different type of L disease, my symptom is that instead of using different lens for different situation, I tend to use my 300mm 2.8 for everything to get best IQ I can, sure sometimes it looked so ridiculous by holding a big white lens in my kids kindergarten but couldn't help it at all... and I guess there is no drug for that since we want to be sick like that. sorry, sounds like way off the subject.
<div style="CLEAR: both"]</div>
This is classic confirmed "L Prime".If you find yourself saying things like "nothing but the best IQ will do" and "I can always crop, I don't need a Zoom" then you may have the first tell tale signs.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
How to avoid L diease and its more serious cousin.
If one does not use a specific lens at least 10+ times on every shoot, one should not own that lens.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
Quote:
Originally Posted by JJphoto
I tend to use my 300mm 2.8 for everything to get best IQ I can
Hmmm...an 8' MFD and something like 30' distance to frame a toddler (or closer to 50' if you have a crop body)...I guess you must have some pretty big rooms in your house, 'eh? Or you get a lot of shots with a nose and one eye...[img]/emoticons/emotion-4.gif[/img]
<div style="clear: both;"]</div>
well I should have said that I tend to use my 300mm wherever available,I did get some face only shorts though, but on the other hand, the favorite shorts picked by my family members and friends were mostly like those shots taken with the 300mm. sometimes it's just the feeling.
BTW, I'v noticed that you have about 6 lenses in that 70mm-400mm(most of them are in 70-300) range and you still want to add that new $1500 lens? man, how much money you want to put in to that range but leave a big prime aside... I know you have your reasons.....
anyway you might think I'm crazy too, but as long as we enjoy what we have.......[:D]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by JJphoto
BTW, I'v noticed that you have about 6 lenses in that 70mm-400mm(most of them are in 70-300) range and you still want to add that new $1500 lens?
Haven't you heard? John likes lenses. [:)]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by HDNitehawk
Quote:
Originally Posted by JJphoto
Quote:
Originally Posted by neuroanatomist
That gives me an idea - since I'm a neuroscientist working for a pharmaceutical company, maybe I should push for development of a drug to treat <span style="color: #ff0000;"]L-disease. [img]/emoticons/emotion-15.gif[/img]
I guess I have different type of L disease, my symptom is that instead of using different lens for different situation, I tend to use my 300mm 2.8 for everything to get best IQ I can, sure sometimes it looked so ridiculous by holding a big white lens in my kids kindergarten but couldn't help it at all... and I guess there is no drug for that since we want to be sick like that. sorry, sounds like way off the subject.
<div style="clear: both;"]</div>
This is classic confirmed "L Prime".If you find yourself saying things like "nothing but the best IQ will do" and "I can always crop, I don't need a Zoom" then you may have the first tell tale signs.
<div style="clear: both;"]</div>
thank you Doc for your correct diagnosis , but I don't want to be treated anyway[:D]
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
BTW, I'm not speaking for John, but possible reasons for not wanting a long prime are clear. If you don't want anything much heavier than the 100-400 and require IS, that eliminates all canon primes over 200mm.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Jon Ruyle
BTW, I'm not speaking for John, but possible reasons for not wanting a long prime are clear. If you don't want anything much heavier than the 100-400 and require IS, that eliminates all canon primes over 200mm.
<div style="clear: both;"]</div>
if you are really sick(L disease), you will think this just an excuse for not getting the big lenses[:D]
but that's true, they are way too heavy, so I'm using my 400mm 5.6 more often now when shooting birds.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by neuroanatomist
[You might find [url="http://www.bobatkins.com/photography/technical/field_of_view.html]Bob Atkins FOV Calculator[/url] handy (scroll down a bit) - you can enter focal length, crop factor, and distance and it will calculate the XY dimensions of your field.
For example, with a 300mm lens on a 7D, at 15 feet from a subject, the FOV is 13.5x9". If that subject is a pretty, yellow goldfinch on a branch, that 4" tall bird will occupy 6.6% of the image frame. With a 400mm lens in that scenario, the bird will occupy 11.7% of the image. Either way, the shot is probably going to require some cropping, but the extra 100mm of focal length means only about half as much cropping, and therefore less noise in the final image. Then again, if all you intend is posing images here and printing 4x6" photos, crop away...
<div style="CLEAR: both"]</div>
First of all, I should say that I agree with the point you are making (and thanks for taking the time to respond). Playing with the analysis a little more, at 18 MP (5184 x 3456), the FOV at 15 ft300 mm has <span style="text-decoration: line-through;"]232 horizontal pixels per inch and 386 <span style="text-decoration: line-through;"]vertical pixels per inch. The 400 mm has <span style="text-decoration: line-through;"]310 horizontal ppi and 515 <span style="text-decoration: line-through;"]vertical ppi. Throw in the fact that the 70 to 300 L is sharper, I am thinking that I'd still have a good picture of the goldfinch at 15 ft. Maybe not AS good, maybe I would lose some ability to crop or enlargea print. So, this is the potential compromise, weight/size/limited to 300 mm vs cost/having 1 lens instead of two/some aperture benefits. Definitely has me thinking.
Anyways, I can't wait for the review. [:D]
Edit Comments:
I believe I just found an error in my calcs (thus the strikethroughs). Also, others probably know, but resolving power appears to be linear with focal length. Thus the gain in resolving power is the same from 200 mm to 300 mm as it is from 300 mm to 400 mm. FOV is not linear.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Sheiky
Quote:
Originally Posted by neuroanatomist
Tom, Jan - where are you getting the information that this lens doesn't extend with zooming?
You're right, my imagination and drooling played a big role in saying this I think ...If I would look at the picture I would be tempted to say it as well, but indeed I'm not sure.
Looks like it extends with zooming. The Canon Digital Learning Center article on the new lens shows the optical diagram, which shows the front element of the lens extending with increasing focal length.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
There has been discussion about the 70-300mmL with extenders. I just noticed on the Canon Learning center article on the 300/400+extendersthat the new 70-300L isn't listed as compatible. Search for "Lens Compatibility" to see the chart of supported lenses.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by JJphoto
Quote:
Originally Posted by HDNitehawk
Quote:
Originally Posted by JJphoto
Quote:
Originally Posted by neuroanatomist
That gives me an idea - since I'm a neuroscientist working for a pharmaceutical company, maybe I should push for development of a drug to treat <span style="color: #ff0000;"]L-disease. [img]/emoticons/emotion-15.gif[/img]
I guess I have different type of L disease, my symptom is that instead of using different lens for different situation, I tend to use my 300mm 2.8 for everything to get best IQ I can, sure sometimes it looked so ridiculous by holding a big white lens in my kids kindergarten but couldn't help it at all... and I guess there is no drug for that since we want to be sick like that. sorry, sounds like way off the subject.
<div style="CLEAR: both"]</div>
This is classic confirmed "L Prime".If you find yourself saying things like "nothing but the best IQ will do" and "I can always crop, I don't need a Zoom" then you may have the first tell tale signs.
<div style="CLEAR: both"]</div>
thank you Doc for your correct diagnosis , but I don't want to be treated anyway[img]/emoticons/emotion-2.gif[/img]
<div style="CLEAR: both"]</div>
Not a Doc.I am a fellow suffer that just knows the symptoms. I can relate to your kindergaten story. I have grandsons who play baseball andwhohave there games photographed with the same gear that the big league players making millions do. And I have birds in the back yard who get their picture taken with the same stuff asthe ones on the front of national geographic. L Prime addicted.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by DavidEccleston
That's what I thought, but I wasn't positive:
<div>
Quote:
Originally Posted by neuroanatomist
I don't believe that I read anywhere that this new 70-300mm f/4-5.6L is compatible with the extenders...It depends on the physical configuration of the mount end of the lens, and whether or not there's room for the protruding optical element of the extender to fit into the back of the lens. I'll point out that the extenders do not fit into the back of the 70-300mm non-L lenses, and that the new 70-300mm L lens is the same physical length as the old 70-300mm non-DO, meaning a pretty compact design.
Given the compact design of the new lens, there's no room at the back end for the protruding optical element of the extender.
Interestingly, looking at the optical design Canon showed for the new 70-300mm L, it looks like with the floating element design, the rear element also moves with zooming (between 135mm and 300mm). I don't know a lot about zoom lens design (microscopes don't have zoom lenses!), but I hope there's a clear glass cover at the back end - if the rear element moves with zooming and there's nothing between the rear element and the sensor, Canon must think their anti-dust sensor coating and vibrating sensor cleaning are really effective...
</div>
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Canon EF 70-300mm f/4-5.6L IS USM lens
It certainly looks like this lens extends when it zooms. So the question is as follows...if it extends..why bother with the weathersealing? When the lens extends it must create a weakspot that the non-extending lenses do not have, right? How do you properly seal the area where the lens creeps outwards? When it retracts it must be hard not to pull moisture and dust back inside the body of the lens.
Dan
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
<div>
Quote:
Originally Posted by neuroanatomist
I noticed...we'll see what it will look like [^o)]
Quote:
Originally Posted by Ulfarin
.if it extends..why bother with the weathersealing? When the lens extends it must create a weakspot that the non-extending lenses do not have, right?
Uh...the 24-70L, 24-105L are also weathersealed extending zoom-lenses... And as far as I know they work great.
Quote:
Originally Posted by Ulfarin
How do you properly seal the area where the lens creeps outwards? When it retracts it must be hard not to pull moisture and dust back inside the body of the lens.
</div>
I have no clue. I wondered myself a couple times since when I dry my 24-105 after rain when it's extended and I pull the extended part back in and out it will be wet again, so there must be some rubber sealing or something inside the barrel.
No clue, but I bet you can find the answer online.
Jan
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Ulfarin
How do you properly seal the area where the lens creeps outwards? When it retracts it must be hard not to pull moisture and dust back inside the body of the lens.
Perfect application for an o-ring or two.
Tom
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Tom Wertman
Quote:
Originally Posted by Ulfarin
How do you properly seal the area where the lens creeps outwards? When it retracts it must be hard not to pull moisture and dust back inside the body of the lens.
Perfect application for an o-ring or two.
Tom
<div style="CLEAR: both"]</div>
I've found it interesting in reading descriptions of several "L" lenses online thatvery few are stated as"weather proof" and most others, including the 70-300 L are listed as "weather resistant." Perhaps to the author, those aren't that different, in my world, those are very different.A couple of o-ringson an extending tube are probably"weather resistant."
As for me, I am still interested in the 70-300L, but I think I've decided to rent the 70-200 f/4 L IS and the 100-400 L. I have a trip coming up to Acadia NP, anyone recommend one lens rental shop over another? Thanks.
-
Re: Canon Releases Six New L-Series EF Lenses And Accessories
Quote:
Originally Posted by Kayaker72
A couple of o-ringson an extending tube are probably"weather resistant."
That is all most of us need. There are a variety of covers for lens and body if one plans on being out in a downpour or underwater.
Quote:
Originally Posted by Kayaker72
I have a trip coming up to Acadia NP
Went there last summer. Great park, very rocky without a lot of trees. Most of the top soil was pushed south by the glaciers. 90% of my shots required a wide lens (24-105 4L). The landscape is awesome. Did not have much use for telephoto.
Tom
