Olympus M.Zuiko Digital ED 17mm f1.2 PRO film door using either the focus scale

using either the focus scale or the groundglass

while it only has the single shutter speed and literally no other features

It will not give you exposure readings

Slips over the taking lens and fastens with a thumbscrew

a huge shutter speed dial (with external meter coupling gear) and a bottom-mounted winding lever

Olympus M.Zuiko Digital ED 17mm f1.2 PRO film door using either the focus scaleThe Olympus M. Zuiko Digital 17mm f1. 2 is an ultra fast wide angle lens for Micro Four Thirds cameras. With a "full frame" equivalent of 35mm, this is a fantastic low light tool for event and people photography. In excellent condition, with light internal dust. Includes hood and softcase.