Sony FE 400-800mm f/6.3-8 G OSS

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Zoom lens

A zoom lens by Sony for Full frame cameras, 400-800mm f/6.3-8. Sony's longest zoom, for birds and distant wildlife.

What it frames like

Its full-frame-equivalent focal length on the sensor it was made for.

How wide 400mm sees at its wide end on each sensor it covers.

f/6.3 wide open, to scale against f/1.4.

On full frame (Sony E): as marked, 400-800mm.
On APS-C (Sony E): like 600-1200mm on full frame; f/6.3-8 gives about the depth of field of f/9.4-12 there.