ctransj
Senior Member
Since I acquired the Canon 17-55IS, I hardly use the Sigma 50mm which was used to be my favorite. From 1.4 to 2.8, the Sigma still has focus issue. From 2.8 and smaller, the Canon is very sharp + IS.
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--When I was using 50D as my primary camera, I had a Sigma 30 1.4, need to MFA to +15 to make it focus on target.
After upgrading to FF I sold it, then took a plunge and bought a Sigma 24-70 2.8, this piece of sh!t can front focus 1m in front of a subject standing 3m from you! And no amount of MFA can fix the focus shift because it's different between 24mm and 70mm. Sold it right away and never looked at another Sigma, not remotely interested.
What good a fast prime has if you can't focus it on where you want?
LOL! I too had one for a week with the same experience - a complete dump of a lens!After upgrading to FF I sold it, then took a plunge and bought a Sigma 24-70 2.8, this piece of sh!t can front focus 1m in front of a subject standing 3m from you!