Nikon 35mm f2 Nikkor-O Auto (AI Converted) wall adapter The Asahi Pentax Microscope adapter

The Asahi Pentax Microscope adapter is an indispensable accessory for anyone who wants to connect their M42-mount camera to a microscope

4 AI-S Nikkor lens is in excellent condition

Includes a Nikon 35-70mm f3

Designed to fit over a reversed IROOA hood

It's made up of a three-screw leveling base

Nikon 35mm f2 Nikkor-O Auto (AI Converted) wall adapter The Asahi Pentax Microscope adapterThe Nikon 35mm f2 Nikkor O Auto is a fast wide angle prime lens for the Nikon F mount. Glass has minor dust, no haze or fungus, very light front element marks which won't affect function. This is an original pre AI lens that has been AI converted with I'm gonna say, a grinder? The conversion is unattractive but functional. Cosmetic condition is otherwise very good, with minor paint wear; focusing and diaphragm work well.