Nippon Kogaku 600mm f9 APO-Nikkor in 5.5" Sinar board brand_Nikon the shutter works well through

the shutter works well through its range

This N90s is in good cosmetic condition

For 52mm filter

and 77mm lens threads

with only minor cosmetic finish wear

Nippon Kogaku 600mm f9 APO-Nikkor in 5.5" Sinar board brand_Nikon the shutter works well throughThe Nippon Kogaku 600mm f9 APO Nikkor is a barrel lens (without shutter) that covers up to 11x14". In excellent condition, with minor internal dust and light cosmetic wear. Diaphragm blades are even, though a few have light oil which does not affect function. The flip away lens cap holds well, though only one spring clip is present. The lens is threaded into a custom 5. 5" Sinar compatible board.