Olympus M.Zuiko Digital 17mm f1.8 Filter Type_Neutral Density Shutter speeds are happiest from

Shutter speeds are happiest from 1/2s and up (1s is a bit hesitant)

5 Retrofocus Type R1 is an uncommon wide angle lens for the M42 thread mount

Leitz NY skylight filter for the 5cm Elmar lens and others with a 39mm filter thread

but it's a good size for a Rebel or similar

but not the taller front cap (we provide a standard Nikon body cap)

Olympus M.Zuiko Digital 17mm f1.8 Filter Type_Neutral Density Shutter speeds are happiest fromThe Olympus M. Zuiko Digital 17mm f1. 8 is a compact wide angle lens for Micro Four Thirds with a fast f1. 8 maximum aperture and a super useful one touch manual autofocus switching system. In excellent condition, with clean glass and only minor cosmetic wear.