Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens.
In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact.
This dedicated lens hood is designed to match the specific focal length of the lens it was designed for.
Best Replacement for Nikon HB
-77 Hood
Bayonet mount design.
Reversible for easy storage
Will not affect the use of lens cap
No vignetting will be caused with the hood on
Nikon AF
-P DX NIKKOR 70
-300mm f/
4.5
-
6.3G ED/VR Lens
1x HB
-77 lens hood