Tamrac 5788 lens mount_Topcon 8 is a telephoto zoom

8 is a telephoto zoom lens for the Konica AR lens mount

very wide on full frame

But if you have an original Pentax 6x7 and you want a metered prism

This is an "autofocus" teleconverter with passthroughs for electronic contacts and mechanical focus coupling

This Nikon 400mm f5

Tamrac 5788 lens mount_Topcon 8 is a telephoto zoomThe Tamrac 5788 is a convertible backpack with padded upper and lower compartments (with dividers in the lower) and a laptop compartment. The straps can be configured as a normal backpack, a sling bag, or tucked out of the way. Light cosmetic wear, good function. Bottom compartment dimensions are approximately 14x22x28cm; top is approximately 12x18x22cm.