100-400 paired with A9/1.4x TE or A7IV in crop mode?

Started 3 months ago | Discussions thread
dcstep Senior Member • Posts: 1,255
Re: Don't dismiss APSC on the A9 without seeing this video.

vett93 wrote:

..

What benefits do you get by using A9 in APS-C mode vs cropping it in PP?

Nothing.
I don't know the aspect ratio that I'll use until I look at the image prior to RAW conversion.  Sometimes I'm thinking about that as I shoot, but I'll often move between 1:1, 5:4, 3:2, 2:1. I want to gather all the information that's possible given my sensor/lens combination. Cropping is my last step before hitting the Process button. Sometimes I'll have 3 or 4 similar images of the same subject and yet some will look better 1:1 and some better as 5:4. With spread-wing flight shots, I'll often choose 2:1 to emphasize the spread of the wings.
I can't even imagine why I'd throw away available pixels before I got a chance to see the image in the calm of rendering, rather than in the heat of battle, with a pintail flying by at 50-mph.

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Dave

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