Schneider's standard Componon — the 100mm for medium/large format enlarging.
The Schneider Componon is the professional-grade enlarging lens range from Schneider, positioned below the Componon-S for serious darkroom work. The 100mm f/5.6 covers 6×6cm to 6×7cm medium format negatives, featuring Schneider's multi-coating for colour-neutral enlargements in professional lab environments.
100mm focal length, f/5.6 maximum aperture, Schneider multi-coated, M39 thread mount, designed for medium format negatives.
The Componon 100mm is a reliable professional lens for medium format darkroom work, directly competing with the Nikon EL Nikkor 105mm and Rodenstock Rodagon 105mm at the professional tier. Good sharpness at f/8. Less common than the 50mm Componon on the second-hand market.
Inspect for fungus, haze, and coating condition. Schneider coatings appear amber-gold under reflected light. Check aperture blades and M39 thread.