Canon Flash Coupler L flash meter and it's not an effect

and it's not an effect easily achieved in post

but everything's in nice shape

and features an easy to use

On camera or off

This D500 is in excellent condition

Canon Flash Coupler L flash meter and it's not an effectThe Canon Flash Coupler L lets you mount a standard hot shoe flash to the original Canon F 1 camera, and it also includes a little illuminator to light up your viewfinder display. The coupling function doesn't require any battery power, but the illuminator does: originally designed to accommodate a PX1 and a PX625 battery, you'll need to figure out how to put about 3v through the circuit to make it light up. It does light up, though! Please note: this