Nikon 28mm f2 AI Nikkor brand_Blazes Photographic This Nikon drop-in gel filter

This Nikon drop-in gel filter holder fits the Nikon 600mm f4 AF Nikkor lens and other lenses which use 52mm-sized drop-in filter holders

which was the style in 2008

The SMC Pentax-M 200mm f4 lens is a good quality telephoto lens for Pentax K-mount cameras

and everything moves as smoothly as you'd expect

Nikon 28mm f2 AI Nikkor brand_Blazes Photographic This Nikon drop-in gel filterThis Nikon 28mm f2 AI Nikkor is a classic fast wide angle lens for Nikon F mount cameras. In excellent condition overall, with light finish wear, minor internal dust. It's noticeably bigger and heavier than f2. 8 versions, but Nikon still managed to keep that 52mm front thread. Nice and sharp, with a pleasant character.