Carl Meyer 100mm f2.3 Type 'A' 6x4.5 Manually selectable shutter speeds from

Manually selectable shutter speeds from 1/10s to 1/200s (plus Bulb)

Purists may complain

and manual settings from full to 1/16th power

The Schneider-Kreuznach Xenon 50mm f/1

This Canon drop-in adapter is threaded to use standard 52mm filters

Carl Meyer 100mm f2.3 Type 'A' 6x4.5 Manually selectable shutter speeds fromA rare lens in a threaded tube, this Carl Meyer 100mm f2. 3 will cover full frame 35mm at infinity, and may cover digital medium format sensors. This lens will require some adapting work to make it mount on a camera: it does not have a camera mount, and will not directly attach to anything, so you'll have to put some work in. Light internal dust, working diaphragm.