Leitz VIOOH parts the BL-3 chamber cover

the BL-3 chamber cover

so you don't need to worry about keeping it fed with batteries

they were not originally designed to cover the larger Fuji sensor so please confirm compatibility between your lens and camera body

This Asahi Pentax K extension tube set includes three tubes (9

This is a cold shoe

Leitz VIOOH parts the BL-3 chamber coverThe Leitz VIOOH is a variable viewfinder for lenses between 35mm and 135mm (with stops at 50, 73, and 90mm along the way). This one is in very good condition overall, with only minor paint wear, a couple of scuffs on the "nose". There is light haze in the optics which doesn't affect usability.