Most helpful critical review
1 of 2 people found the following review helpful
Just Ok if you get a good copy.
on 6 October 2014
I have had this lens for more than 6 months now and I am slightly frustrated with it. Initially it was fine though focus was off out of the box. I then calibrated it using the Sigma USB dock and have managed to get it to focus almost accurately though it wasn't always perfect. After 5 months of use I spotted fungus marks on the front element which was surprising for a new lens. I sent it to Sigma for repair and even they were surprised to see fungus. I got it done under warranty and received the lens back after a week from Sigma. On close inspection I found dust on the front element which wasn't there earlier and had to send it back again and It is with Sigma now. Overall it is an Ok lens but if you are fussy about IQ then it is not for you. Also if you are not in luck you might get a bad copy which doesn't focus correctly. You then have to spend extra on the USB dock and spend ages to calibrate it manually. I do have a Sigma 30mm Art which also didn't focus correctly initially. I have now bought a Canon 24-105L and it works like a dream. The IQ is fab and I bought it from another trusted online seller for just over £450.