Tamrac 5788 lens mount_Topcon This is an "autofocus" teleconverter

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

This Nikon 400mm f5

very wide on full frame

This one comes with 4 slide trays and the original carrying case

Tamrac 5788 lens mount_Topcon This is an "autofocus" teleconverterThe 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.