Kenko DG Extension Tube Set for Canon EF brand_kodak power focus (with autofocus for

power focus (with autofocus for slide-to-slide sharpness) and a built-in timer function for automatic shows

Main compartment is approximately 12x18x24cm

78cm (31 inches) of travel with a 6

it does not show up when viewing through the camera normally

The image is circular

Kenko DG Extension Tube Set for Canon EF brand_kodak power focus (with autofocus forA 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. Some cosmetic wear, good function.