Negative Positive
Title: Excellent Optical Quality, Sub-Par Build Quality
Review: I expected this unit to be a bit more robust for the $1,000 price tag, but was disappointed that it felt cheap in my hands. After about a day's worth of usage I didn't feel that the unit had long-term durability so I returned it in exchange for the Canon 24-70 f/2.8 L USM. I bought my 17-55 from Adorama and they were fast and efficient on processing my return without issues.If you can live with paying $1,000 for what equates down to quality glass in a cheap feeling plastic and an un-sealed dust-prone lens, go for it. I would suggest, for the price, the 24-105 f/4 L USM or the 24-70 f/2.8 L USM.
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