Promaster Extension Tube Set for Canon EF brand_Velbon Shutter speeds are good from

Shutter speeds are good from 1/25s and up- lower speeds stick

The Bronica Zenzanon-RF 45mm f4 is a wide angle lens for the Bronica RF645 medium format rangefinder camera

very mod polka-dot packaging

with manual wind and rewind- but it also has a solid IR autofocus system and a built-in flash

Promaster Extension Tube Set for Canon EF brand_Velbon Shutter speeds are good fromA set of three extension tubes for Canon EF mount: 12mm, 20mm, and 36mm. These tubes have the electronic contacts necessary to maintain autofocus and autoexposure capabilities. If you're curious about dabbling in macro work, this is an inexpensive way to get started. Includes front and rear caps.