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Consensus on 24-70/2.8 II field curvature at infinity focus?

Started Sep 14, 2013 | Discussions thread
Rick Knepper
Rick Knepper Forum Pro • Posts: 17,870
Re: No, you are confusing what I am saying.

andrewD2 wrote:

I praised the lens at 24mm and at all focal length and there is far far less CA than the old 24-70II at all focal lengths. I sold my old one and I like the new one. Mostly due to the lighter weight. Because you feel I'm knocking your expensive baby doesn't make real issues go away. Equipment is a business, not personal, thing for me.

I've got plenty of gear to compare it to and its the only lens I've noticed strong field curvature on.

At 40mm and f2.8 the pancake is sharper across a scene that is parallel to the sensor and focused in the centre.

Do the test yourself.

The most expensive choice is not always the best landscape lens. E.g. the 85/1.2 huge front element makes it a poor choice.

Andrew

You are arguing that the 24-70's field curvature is strong (obviously a matter of opinion and taste) but for the sake of argument and those avid readers of Photozone, I'll stipulate to that. What I am saying or should have made clearer is that this lens' field curvature doesn't harm most scenics. If you are shooting the horizon at water level, maybe you'd want less field curvature. If you have mixed scenics with buildings and straight lines in your composition, the smart lens is the TSE-24mm but you lose the bennies of the 24-70 II.
But the OP wants "decent" edge sharpness across the frame and I am telling you, he ain't going to find it as he presumably defines it if he has such a low opinion of the 24-70 II @f8.

But, let's see the visual evidence. I don't mind standing corrected.

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Rick Knepper, photographer, non-professional, shooting for pleasure, check my profile for gear list and philosophy. TJ said, "Every generation needs a new revolution".

 Rick Knepper's gear list:Rick Knepper's gear list
Pentax 645Z Canon EOS 5DS R Fujifilm GFX 50S Sony a7R IV Pentax smc D FA 645 55mm F2.8 AL (IF) SDM AW +11 more
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