Is the nikon z 800mm f 6 3 vr s long enough for birds?

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From Nikon Z 800mm f/6.3 VR S: Nikon Z 800mm f/6.3 VR S: A prime lens by Nikon for Full frame cameras, 800mm f/6.3. A Phase Fresnel element keeps this 800mm light enough to hand-hold. Specs - Maker: Nikon - Focal length: 800mm (prime) - Maximum aperture: f/6.3 - Made for: Full frame sensors - Mounts: Nikon Z - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Nikon Z): as marked, 800mm. - On APS-C (Nikon Z): like ...

From Wildlife and sport: Reach: Focal length is the first thing to sort out. - Sport from the sideline and larger animals: 70-200mm to 100-400mm on full frame. - Birds: 600mm full-frame equivalent and beyond. Birds are small and far away; a common saying is that you never have enough reach for them. Smaller sensors help here. A 100-400mm lens on APS-C gives the view of about 150-600mm on full frame, and on Micro Four ...

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