70-200 Mark II - I've Gone & Done It!

[elmo_2006]

I've pulled the trigger on this bad boyandI'm in love with the output. The Mark I was great but the Mark II issimply amazing.


BUT, Ihave a concernabout the IS on this puppy:


I was taking some photos today in fairly good lighting, thethe IS when *winding up/down* would make a louder than normal buzz. I mean, typically it's a low buzz/hum, but this caught me off guard. Yes the lens was still capable of stabilising and achieve focuslock BUT the sound has me worried. It only happened a couple of times today. I flipped the switches from 1.2 to 2.5 and back again to no avail. I then decided to power cycle the camera and the loud buzz is no longer present.


I'll be heading out on vacation in about a month and the lens is less than a week old and the last thing I need is to possibly have the IS *jam* up in the middle of a photo shoot!


Suggestions/comments are more than welcome.....


Thanks

[peety3]

1.2/2.5 is focus distance, not IS, so I don't know if there could be a relation there.


Suggestions? You can send it to Canon for a problem that no longer exists in the hope they find the problem if/when they disassemble it, but you might get it back no-problem-found (and after-you-leave). Or you can hang onto it and send it to Canon if/when it acts up in a manner that you can't coax away. Unfortunately it's your call.

[Jon Ruyle]

I don't know how much louder than normal it was... mine has some variation: sometimes it gets a bit louder. Does "louder than normal" mean much louder than the mk 1?


I don't really know, but my gut reaction is... relax, man Enjoy your awesome new lens!

[elmo_2006]

<div style="margin-bottom: 14pt;"]1.2/2.5 is focus distance, not IS, so I don't know if there could be a relation there.</div>
<div style="margin-bottom: 14pt;"]Suggestions? You can send it to Canon for a problem that no longer exists in the hope they find the problem if/when they disassemble it, but you might get it back no-problem-found (and after-you-leave). Or you can hang onto it and send it to Canon if/when it acts up in a manner that you can't coax away. Unfortunately it's your call.</div>

Yeah, just thought I would test the waters...maybe I should head back over to Henry's for an exchange just to be on the safe side, I just hate returning/exchanging items if not necessary!

I don't know how much louder than normal it was... mine has some variation: sometimes it gets a bit louder. Does "louder than normal" mean much louder than the mk 1?


I don't really know, but my gut reaction is... relax, man Enjoy your awesome new lens!

LOL, your gut maybe right, I'll try to recreate the problem, but I guess a slight variation in sound is ok from time to time, at least I'll know it's functioning...[:P]...but since the lens is less than a week old, I'll play it safe and return for an exchange as mentioned above.


LOL...now I'm sounding like a *drama queen*...thanks for the suggestions!

[Jon Ruyle]

LOL...now I'm sounding like a *drama queen*...thanks for the suggestions!

You sound kinda like I do when I get something new

[elmo_2006]

Update...


I've exchanged the lens at Henry's and this one is quiet than ever, wow, but now I find thatmy XSisometimes cannot obtain focus lock. I was out in the yard at around 3:00pm, lots of sun and heat and I was snapping up photos of flowers, but sometimes the camera would not obtain focus lock on anything - talk about a crap shoot!


Talk about bad luck. I then quickly attached the 24-105 and had no issues with focus lock.


The current setup...Av, spot, AI Focus, Auto ISO, center focus.


It can't be the lens, not twice in a row! I think I want my original lens back.


Anyone with ideas, as I'm close to reverting to the *fetal position*!

[Tom Wertman]

but sometimes the camera would not obtain focus lock on anything

Were you inside of the minimum focusing distance by any chance?


Tom

[elmo_2006]

Hi Tom...


No I was not, most of the times however; I was trying to capture the subject on the long end of the zoom.


This is very frustrating...

[neuroanatomist]

Were you inside of the minimum focusing distance by any chance?

<div>

No I was not

</div>


Tom's question occurred to me also, so I'll ask a follow up - were your subjects closer than the distance set by the focus limiter? Thereis afocus limiter switch with settings of 1.2m - &infin; and 2.5m - &infin;. So, if the switch was in the 2.5m- &infin; position you would not be able to AF on anything closer than 2.5m, even though the MFD for the lens is 1.2m.

[elmo_2006]

Hi Neuro...


The switch was set to 1.2 and the subject was more than 2.5m away.


I performed some basic tests and the lens is neither front/back focusing. With the original lens I was able to zoom in and obtain lock on a vine leaf, with this lens, it's having a hard time obtaining lock. I have to constantly keep pressing the button to find lock.


Could this be camera body related or lens or both? The 24-105 does not exhibit this issue.