Canon EF III USM Lens

Yes, it is fully compatible with Canon APS-C sensor cameras. Keep in mind that the crop factor will change the effective focal length to approximately 26-56mm.

The constant f/2.8 aperture is excellent for low-light photography. It allows more light to reach the sensor, enabling faster shutter speeds and lower ISO settings without the need for a flash.

While it is primarily an ultra-wide-angle lens, it features a minimum focus distance of 11 inches. This allows you to get quite close to your subjects for unique, wide-angle perspectives with a shallow depth of field.

The fluorine coating is applied to the front and rear elements to repel water, oil, and dust. It makes the glass significantly easier to clean and helps prevent smudges and fingerprints from sticking.

Yes, the lens features full-time manual focus override. This allows you to make fine-tuned adjustments to your focus manually at any time without needing to switch the lens out of autofocus mode.

This lens requires an 82mm filter. Because of the ultra-wide design, ensure you use a slim-profile filter to avoid any potential vignetting at the widest 16mm setting.