Nikon z dx 50 250mm f 4 5 6 3 vr vs tamron 18 300mm f 3 5 6 3?

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From Nikon Z DX 50-250mm f/4.5-6.3 VR: Nikon Z DX 50-250mm f/4.5-6.3 VR: A zoom lens by Nikon for APS-C cameras, 50-250mm f/4.5-6.3. Specs - Maker: Nikon - Focal length: 50-250mm (zoom) - Maximum aperture: f/4.5-6.3 (it gets darker as you zoom in) - Made for: APS-C sensors - Mounts: Nikon Z - Stabilised: yes - Autofocus: yes What it frames like - On APS-C (Nikon Z): like 75-375mm on full frame; f/4.5-6.3 gives about the depth of field of f/6.8-9.4 there. - ...

From Nikon AF-S DX 18-300mm f/3.5-6.3G ED VR: Nikon AF-S DX 18-300mm f/3.5-6.3G ED VR: A zoom lens by Nikon for APS-C cameras, 18-300mm f/3.5-6.3. A DX travel superzoom.

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