IC Enlarger Timer brand_Calypso 5 lens is a compact

5 lens is a compact and unusually fast short telephoto lens for Pentax K-mount SLR cameras

It will probably fit other film M cameras

Maximum height is about 213cm

This version has an 8-bladed diaphragm

with some wear and scuffing

IC Enlarger Timer brand_Calypso 5 lens is a compactIt's much harder to explain the IC Enlarger Timer than it is to use it: there are three dials, marked in 10, 1, and 0. 1s increments, and you set your desired time by turning each dial to add up to the appropriate number. For example, if you wanted to set a time of 13. 5 seconds, you'd set the first dial to 10, the second dial to 3, and the third dial to 0. 5. It's math! Anyway, not sure if I made that more or less confusing, but trust me, it's easy