12-20-2013 10:14 AM
12-20-2013 12:25 PM
"Is canon EF 24-85mm F3.5-4.5 lens is compatible with canon eos 6D "
A better question might be, why? It isn't a great lens and if I remember correctly was introduced for film cameras. It is probably in line with some of the "kit" lenses of today.
12-20-2013 04:12 PM
Yes, that lens will work normally on the EOS 6D with all automatic functions intact. Any Canon lens labeled as "EF" will work on the 6D, but lenses labeled "EF-S" will have strong vignetting (darkening in the corners of the shot).
Actually... "EF-S" lenses will not even mount. There's a lip on full-frame bodies designed to prevent EF-S lenses from being attached. It's not just a question of heavy vignetting and severely degraded image quality at the edges of the frame -- there's a risk of the reflex mirror hitting the rear-most element on an EF-S lens (remember... full frame cameras require physically larger reflex mirrors).
Any "EF" lens can be used. Any "EF-S" lens must not be used (and will not fit). Also, there are a few special purpose lenses such as the MP-E and TS-E lenses which will work with the 6D as well.