Reveni Labs Shoe-mount Light Meter (v. 1) tripod ring 4 is a medium format

4 is a medium format lens that lives up to the hype: thing looks good man

6 SAM lens is designed to fit Minolta Maxxum and Sony Alpha SLR cameras (not mirrorless- SLR only)

Note that this is the later "Assembled in China" model

with a compact ball head

Reveni Labs Shoe-mount Light Meter (v. 1) tripod ring 4 is a medium formatThe Reveni Labs shoe mount lightmeter (v. 1) is a tiny light meter that mounts on just about any hot or cold shoe, offering centre weighted reflective metering at a 45 degree sensor field of view. There are simple controls and a bright OLED display that is easy to read. It can be set to aperture or shutter priority mode and counts in whole, half, or third stop increments (including 2 to +2 exposure compensation). Takes one button cell battery,