BryGuy wrote:
Please excuse my reply, I am not trying to argue. More so trying to understand. This is in the full frame section of the catalogue and is listed as an EF mount, not an EF-S. How can I tell that it is not a full frame lens if I were to shop and purchase a lens like this? Your input is greatly appreciated.
-Thank you.
The Sigma DC line will mount to the EF / EF-S mount. However, the lens projects an image circle specific to the cropped-sensor size. So, you can mount to a full frame body, but get an image with black shadow around the entire frame. Your confusion is understandable. The lens description at Larmon's includes an accurate detail:
But, they certainly are not making it easy to find and avoid buying the wrong lens type.