Sony Alpha 1, SEL 200-600 or Canon R5, RF 100-500

Started 3 months ago | Discussions thread
win10-64 Regular Member • Posts: 492
Re: Sony Alpha 1, SEL 200-600 or Canon R5, RF 100-500
1

Thanks, I will have to try the four corner or brick wall test.

Not sure if this pic I took wide open with the TC looks like the normal quality and sharpness of a good lens or not, but maybe hard to tell from bird pics rather than proper tests.

daran wrote:

The usual way is to do a four corner comparison, see various variants of the same test idea:

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