Here we have a Canon Power Winder A2 for A-series cameras. These include the A-1, AE-1, AE-1 Program, AT-1 and AV-1.

This power winder screws into the bottom of your vintage Canon SLR and allows for automatic advancement of the film, offering faster shots and continuous burst mode. The A2 is superior to the Power Winder A in that it advances the film continually without the need to remove one's finger from the shutter release button.

This winder is in excellent condition and is fully functional.

Battery compartment is clean.

Does not come with batteries, requires 4 AA.