07-14-2010, 11:00 AM
[quote name='wim' date='13 July 2010 - 03:45 PM' timestamp='1279028710' post='982']
Hi Christos,
You're only using 40% of the total area covered by this lens on the 7D as compared to FF, and that is more or less the "good" area from my experience. Even then, to me it doesn't look convincing.
The two characteristics of this lens that are any good at all, IMO, is the fact that even at 12 mm straight lines are straight, and the price.
I expect this lens to behave less on FF. IMO, you're better off getting an 8-16 Sigma for APS-C, giving you 12.8 mm equivalent on APS-C rather than 12 on FF, but at quite a bit better quality (and probably usable on FF from about 13-14 mm as well).
[/quote]
I thought it was impossible to mount APS-C lenses on FF Canons due to lack of mirror clearance?
-Lars
Hi Christos,
You're only using 40% of the total area covered by this lens on the 7D as compared to FF, and that is more or less the "good" area from my experience. Even then, to me it doesn't look convincing.
The two characteristics of this lens that are any good at all, IMO, is the fact that even at 12 mm straight lines are straight, and the price.
I expect this lens to behave less on FF. IMO, you're better off getting an 8-16 Sigma for APS-C, giving you 12.8 mm equivalent on APS-C rather than 12 on FF, but at quite a bit better quality (and probably usable on FF from about 13-14 mm as well).
[/quote]
I thought it was impossible to mount APS-C lenses on FF Canons due to lack of mirror clearance?
-Lars