08-12-2015, 07:31 PM
The 10-18 is said to be a great choice but I've never used one.
As an owner of the 5D classic/Mk 1/whatever, I can recommend the Sigma 15-30 EX. Mine is sharp from wide open and feels great. The contrast is really nice two, which helps to forget the impossibility to use filters.
The biggest downside of the Sigma is the work against the sun, as it flares pretty hefty but on the other hand, it's 15mm!!
As an owner of the 5D classic/Mk 1/whatever, I can recommend the Sigma 15-30 EX. Mine is sharp from wide open and feels great. The contrast is really nice two, which helps to forget the impossibility to use filters.
The biggest downside of the Sigma is the work against the sun, as it flares pretty hefty but on the other hand, it's 15mm!!