Quantum QFlash Model T5d-R with Godox Propac PB960 lens mount_Pentax K The Hasselblad 10mm extension tube

The Hasselblad 10mm extension tube lets you get a little bit closer with almost any Hasselblad V-mount lens- maybe not close enough for true macro

and diaphragm is clean

and I’m including this store in that list

The Nikon 200-500mm f5

it extends to about 4

Quantum QFlash Model T5d-R with Godox Propac PB960 lens mount_Pentax K The Hasselblad 10mm extension tubeThe Quantum QFlash T5d R is a large on or off camera flash that can be operated with its parabolic diffuser in place or as a bare bulb unit, for additional lighting possibilities. It can be operated in full manual mode, on flash automatic. or TTL (with additional modules, not included). Includes a Godox PB960 power pack and two batteries.