Wildlife, bird and landscape photography.
The objective is to see what differences there are when images are resized to the same resolution of 6000px wide. This is to simulate images being resized to fit on a typical 5K display, which is probably higher resolution than most people would have access to.
These are cropped images from the original images that were all resized to the same 6000px width before being cropped. Raw image adjustments were made to the white balance to match grey colors as closely as possible.
Not a lot in it between these. The a9 clearly at a disadvantage with the lower resolution.
My rating based on pixel peeping the legibility of the text:
The objective is to see how these compare in terms of sharpness at the long end. In practice there is not much in it between them, they both look very sharp. It was hazy and they are about 4km away. Bear in mind the Nikkor 500PF is double the price of the Sony 200-600.
My rating based on the sharpness of the crane cable at 4 kilometers and the ability to see the cable strand detail at 100 meters. All shots are hand held:
The small insets are the Sony a7Riii+200-600+TC1.4. Definitely not as sharp as the Nikon but perhaps not quite the right settings.
Some photos from these combos. What's not to like!
A comparison of the resolution. a9 images have been Topaz AI denoised.
Samples taken with a9 at 840mm and, in some cases, post processing with Topaz DeNoise AI.
Videos showing the a1 autofocus in action.
The exact same sequence shot at the same time from the same location. 1/4000s at 430mm with 20fps on the Canon and 30fps on the Sony.
With and without the 1.4 teleconverters.