John Crowe
Veteran Member
You mean the 500mm for the GFX? On a 100 MP GFX body by the time you crop to the same size as the R5II and 100-500 at 500mm, you get 80 MP. So, theoretically the detail would be stunning. However, using a medium format system, even for perched/standing birds would be quite the challenge and likely overkill. There should be a 1.4x for that lens, which could be fun! Gosh, don't get me thinking about using one for my manual focus sports shots!
A Sony 60MP FF body would be more useful. I doubt AF with your lenses would stand up with the adapter, and I much prefer Canon lens selection over Sony.
For a fraction of the cost of RF primes, or a GFX system, a used EF 500/4 L IS, 600/4 L IS or 800/5.6 L IS (any versions) would be your next step for image quality, if you can manage the weight!
A Sony 60MP FF body would be more useful. I doubt AF with your lenses would stand up with the adapter, and I much prefer Canon lens selection over Sony.
For a fraction of the cost of RF primes, or a GFX system, a used EF 500/4 L IS, 600/4 L IS or 800/5.6 L IS (any versions) would be your next step for image quality, if you can manage the weight!



