Asahi Bellows-Takumar 100mm f4 brand_Pentacon Just push a slide into

Just push a slide into the slot and the viewer's light will turn on

5 minutes for 1:1

with minor signs of wear from use

These dang things were made for almost 30 years with only very minor changes (this one is a later Matchmatic model)

Asahi Bellows-Takumar 100mm f4 brand_Pentacon Just push a slide intoA classic M42 mount Asahi Bellows Takumar 100mm f4 lens designed for use with a bellows: this lens has no focusing system of its own, so it won't work directly on a camera. But on a bellows, it can focus from infinity all the way to 1: 1 magnification. In excellent condition, with light internal dust; diaphragm has a few marks, but moves well. PLEASE NOTE: This lens requires a bellows system (sold separately) for use.