You asked
Is the nikon z 400mm f 2 8 tc vr s worth it?
Here is what the site says about that.
From Nikon Z 400mm f/2.8 TC VR S: Nikon Z 400mm f/2.8 TC VR S: A prime lens by Nikon for Full frame cameras, 400mm f/2.8. A pro sports lens with a built-in 1.4x teleconverter. Specs - Maker: Nikon - Focal length: 400mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Nikon Z - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Nikon Z): as marked, 400mm. - On APS-C (Nikon Z): like 600mm on ...
From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.
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