Canon EF 24-105 f/4 L question

[MaartenOtto]

I have seen the review of this lens and it raised a question.

Currently I have a Tamron XR di 17-50 f2.8 and a Canon 100-400 f4.5-5.6 L is. That leaves me with a 50 mm gap which sometimes results in a bit of frustration when I can not get the picture I want.

So I thought about the 24-105 f4. Will this lens still provide me with good quality pictures at cloudy conditions with objects moving around 50 km/h (1:320 to 1:400 shutter speed) without going above 400 ISO (I find higher ISO settings on the 40D to give to much noise)

Or is that too much to ask from this lens?

[Sheiky]

Currently I have a Tamron XR di 17-50 f2.8 and a Canon 100-400 f4.5-5.6 L is. That leaves me with a 50 mm gap which sometimes results in a bit of frustration when I can not get the picture I want.

If you are thinking about replacing the Tamron with the Canon, you must consider that you are going to fill the gap from 50-100mm which sound like a lot. However you end up with a loss from 17-24mm. Which has quite an impact on your wide-angle capabilities.

So I thought about the 24-105 f4. Will this lens still provide me with good quality pictures at cloudy conditions with objects moving around 50 km/h (1:320 to 1:400 shutter speed) without going above 400 ISO (I find higher ISO settings on the 40D to give to much noise)Or is that too much to ask from this lens?

Your question is a bit unclear to me. You normally shoot at f2.8 with those settings and you ask if you can go up to f4 and bump your ISO one stop and get the same quality? Is that what you mean? A lens does not control noise, the camera does.

[cls]

Hi, during daylight f/4 is fast enough even if it's cloudy. (Think 1/100, f/16 at ISO100 when sunny. Maybe 3 stops darker when cloudy. That's 1/50 at ISO400, f/16. At f/4 that corresponds to 1/800.)

[MaartenOtto]

The Tamron will still join me on my trails across the UK when I need a wide angle (mostly signal boxes and locomotive maintenance sheds). The question is if I'll be able to get pictures that will be light enough (so no extreme photoshopping) at cloudy days when I set the camera to f8, shutter speed at 1/400 and ISO not higher then 400. (I just don't want dark shots)

[Sheiky]

The question is if I'll be able to get pictures that will be light enough (so no extreme photoshopping) at cloudy days when I set the camera to f8, shutter speed at 1/400 and ISO not higher then 400. (I just don't want dark shots)

The 24-105 will let in the same amount of light at these settings as your Tamron will(at the same settings), so you'd just have to test the settings if they are good. If they aren't you should adapt your settings to the situation. Either bump ISO, open up your aperture or change your shutter-speed. You must make changes if settings prove to be wrong. Regardless what lens is used.

[Photog82]

The lens just came in (rental), unfortunately a light snow fall has hit and I wasn't able to test TOO much just yet. I'm looking forward to the weather this weekend.

My first impressions is that the lens is heavier than I expected, about 10 ounces heavier than the 28-135. I understand now what people mean by this lens being sharp and having better color straight from the camera. I shot a snowy bog with the 24-105 and 28-135 and i can see the difference. So far, I'm impressed.

[Sheiky]

It's hard to say good bye once you need to turn it in again

[Sheiky]

I hope you've got luck with your cover-photo! It's definitely not a cheap lens and yes some primes will offer the same or even better IQ at the same settings. But it does offer a nice range, IS and fast USM. Things that primes in that range don't necessarily have. But there are definitely some options in the prime-department at this range. Check some other threads if you need more info.
I personally have thought about buying the Canon 28mm f2.8 for the times I need a lightweight kit. It does seem to perform reasonably good wide open and it's cheap. Second hand it's a real bargain.