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billsnature
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Re: Nikon Z8 with 600 PF vs Sony A1 200-600 or 600 GM for Birds and BIF


Got my Z8 and 600mm PF yesterday and got to do a bit of testing today on songbirds in yard. The results were a bit surprising and require more testing to follow up.

Standard disclaimers....It is one copy of each lens. Lighting was variable. Birds even more variable. Sharpness comparisons were mix of bird results and non-moving things like dried up flowers and stumps.

1) Z8 acquisition speed and ability to find birds is much better than Sony A1. Haven't tested against A7R V, but I think they will be closer since A7R V is also much better than A1. I suspect Z8 may still be faster

2) Focus breathing in Sony 200-600 is worse than I thought. At the MFD of the Nikon 600PF the image size is so much bigger than the Sony 200-600 set to 600, that is almost like having a 1.4X TC on the 600mm PF. Sony is very sharp at the MFD.

3) When an extension tube is added to the 600mm PF to bring the MFD and Magnification closer to that of the Sony 200-600 the IQ does not hold up well. The smaller Sony image (because of breathing) is actually sharper with more detail than the larger image from the 600 PF. I will retest this, but this was a huge disappointment!!! Images from 200-600 look much better.

4) 600mm PF is probably a little sharper at distance than the 200-600, but not by as much as I expected at least at the center of frame.

Overall, a bit of a disappointment on day one, hopefully it gets better.



Feb 22, 2024 at 10:45 PM





  Previous versions of billsnature's message #16479132 « Nikon Z8 with 600 PF vs Sony A1 200-600 or 600 GM for Birds and BIF »

 




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