Electronic Focus
(EF) lenses will work on digital SLRs without the need for an adapter.
Transferring your EF (Electronic Focus) lens from a film single-lens reflex (SLR) camera to your digital SLR is easily done. Unlike older manual focus lenses, EF lenses can be used on digital cameras without the use of a lens adapter. Depending on the type of digital camera you own, you may see a decrease in the lenses field of view resulting from the smaller sensor. The Canon Digital Rebel has a crop factor of 1.6. A 50mm lens on a digital camera would have a field of view closer to a 80mm lens (as 50mm x 1.6 = 80).
Instructions
1. Hold your digital camera in your right hand with the front of camera pointed up towards the ceiling.
2. Hold your EF lens in your left hand and line up the red dot on the camera's mounting plate with the red dot on the outside of the lens barrel close to the rear of the lens.
3. Place the lens on the camera making sure the red dots line up.
4. Carefully rotate the lens until it locks in place. Turn on your camera, insert an empty memory card and you are ready to start shooting.
Tags: camera your, digital camera, Electronic Focus, field view, Hold your, your digital