Exellent Build Quality and USM Motor - Full Time Manual Override and Internal Focusing - Distance Scale very useful and quite good sharpness. USM focusing motor is wonderful. Quiet, accurate focusing with a distance scale as needed. Internal focusing so you can use all types of filters with no problems. Enough sharp pics from my copy (quite soft corners) even wide open at 20mm and f/3.5. Sometimes you get much more than you pay for. Full frame compatible I used on 5D. Some barrel distortion ...View review in forums Leave a comment on this review
Canon EF 20-35mm F3.5-4.5 USM
Wideangle zoom lens | Canon EF | 2545A003
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