Hi all,
Currently, I have four Canon lenses (10-22, 17-40, 24-105, and 70-200 f4 IS) and I would like to compliment them with a fast prime. I definitely want something faster than f/2 (f/1.4 ideally). Focal-length-wise, I was thinking of something in the "normal" range. I have a 40D and an XTi and, of course, I should really consider something around 30mm to 35mm (the 35mm 1.4 L would be perfect, I just can't justify spending that much money on it). However, I think I might end up with a 5DmkII in the future (yes, dream on Tony!), so I should stick to a 50mm to be future-proof. I have a Lensbaby Composer so I'm familiar with what 50mm feels like on a crop camera and I'll be OK with it.
Anyway, to cut a long story short, I read all the reviews, considered all the options, I even asked Bryan some time ago who very kindly gave me some good pointers and advice. So, in my current "phase" I'm considering the Sigma 50mm 1.4. IQ-wise and bokeh-wise, it looks to be superb. The more expensive 77mm filter size is actually an advantage for me as, apart from the UV protector on my 70-200 f4 IS, all my filters are 77mm anyway (and 77mm filters on a 52mm/58mm lens would look daft anyway!).
The main thing that worries me is the auto-focus / front-focusing / back-focusing issues that everybody has been reporting. I don't mind having to manually focus to get the best possible results (one of the things I got out of using my Lensbaby was that I got much better at manually focusing). But, in all honesty, I don't want to do it all the time. And given that the lens does have AF, might as well I use it. I also had a bad experience with the 10-20 f/4-5.6, the only Sigma lens I've ever ordered. I got an awful copy (blurry left side) which I promptly sent back and eventually got the 10-22.
So, does anyone use the Sigma 50mm 1.4? Are you happy with it? Did it need to be sent in for calibration (to be honest, I'd rather avoid Sigma fiddling with a brand new lens)? Is there any way to minimize the chance of getting a bad copy (i.e., if I order from a shop like adorama, can I ask them to check it)? Any feedback / help you can give me would be very very helpful.
And would anyone really recommend the Zeiss 50mm 1.4 over the Sigma (yes, I know it's manual focus only)?
Sorry for the lengthy e-mail and many thanks in advance for any helpful information you'll share,
Tony