Hi there 

For the past 5 years I've been using 5Ds with the Canon EF 24-70 2.8 (I) to shoot stock, mainly in studio.
Here they work great but when I go to exterior it's a disaster... very noise and a lot of out of focus images.

Since the noise can be a problem from the camera, which it's a shame, specially considering that I shoot at 100 ou 200 ISO maximum, the out of focus is from the Canon EF 24-70 2.8 (I).
I've made a test with another Canon EF 24-70 2.8 (I) and the results were the same. I've tested both lenses on a 6D body and the results were... the same.

So I have to conclude that the Canon EF 24-70 2.8 (I) is a soft lens.
Do you agree?

The problem here is that I'm afraid to go outdoors with this lens, because I simply don't trust it.

So I have 2 options... to change to a Canon EF 24-70 2.8 (II) or... buy a 50mm 1.4 which apart from being a standard lens, is awesome on detail.

So my question to you is...

Is it worthy to try the 2nd version of the 24-70?

Many thanks in advance

I have three lenses I use for stock, and the 24-70L (I) is one of them.  I've never had a problem with "noise" or anything.  You may want to send the lens and body into Canon for calibration.

Quote from: Zero Talent on December 23, 2015, 09:28

Fully agree. Mark I is soft, especially on the edges.

Mark II is a different beast. Much sharper. No more rejections for softness. And I get nice stars @ f/16, if that matters

Happy with the upgrade!

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Thanks a lot my friend!

Quote from: Sean Locke Photography on December 23, 2015, 10:14

I have three lenses I use for stock, and the 24-70L (I) is one of them.  I've never had a problem with "noise" or anything.  You may want to send the lens and body into Canon for calibration.

Hello Sean and many thanks for your answer.
The problem here is that I've tested another lens and this lens on another body. The problem is from the lens itself...

My old mark I has been calibrated at a Canon Factory Service Center. Even with that, it still is visibly softer than the new Mark II. And it is not about focus. It is the lens itself.

I sold the old one for ~$900. The new one is ~$1.700 (including a pol filter). I can recover about 30% from taxes.

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