RARE, very hard-to-find Schneider M-Componon 80mm f4 lens for macro/close-up photography.  This lens is threaded to mount in a #0 shutter. It features an aperture range of f4 - f32, a reproduction ratio of 1:1 - 7:1 (Schneider lens catalog specs), covers 4" x 5" and is extremely sharp.  If you require a shutter, at the time of this initial listing I have a couple available, sold separately. Please inquire if interested.  There are two to choose from.  Ships via USPS Priority Mail.