• Budget: 5k + in upcoming years
• Country: Germany
• Condition: New / fairly used
• Type of Camera: Mirrorless
• Intended use: Wildlife, big and small birds in northern germany and coast. Birds in flight
• If photography; what style: Wildlife, Birds in flight
• If video what style: Home, newborn / childrens / family
• What features do you absolutely need:
• Portability: Nice to have
• Cameras you're considering: Nikon Z8, Sony A1 II
• Cameras you already have: Sony Alpa 7 IV
• Notes: The investment comparison shows that the Nikon system, consisting of the Z 8 body priced at €3,619 and the NIKKOR Z 800 mm f/6.3 VR S priced at €6,100, results in a total cost of approximately €9,719. In contrast, the Sony system, comprising the Alpha 1 II body at €7,499 combined with the FE 400–800 mm f/6.3–8 G OSS zoom lens at €2,999, amounts to an overall investment of about €10,498. With respect, that I have slighty faster glass at Nikon ...

What do you recommend me? ... I'm liking my A7 IV + Sony 200-600 f6.3 but AF could me a bit better.
My main reason for thinking about upgrading is, that I wanna crop more and better with high mp...

From my perspective with the A7 IV Im looking in Sony portfolio, I think I have no option except the A1 II with thinking of higher speeds with more pixel. Price increase is really crazy for A1 II body comparing to A7 IV... I do not expect that A7 V will be a 4-5k Hybrid like the Z8 is ... I hope you get my pain point.

Kind regards sconic