Leitz VIOOH parts the BL-3 chamber cover

the BL-3 chamber cover

This is a cold shoe

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

and the 1988 F4 (although its label here is a duplicate of the F3's caption)

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

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.