Until recently I used to own the Canon EF 50 mm 1:1.4 USM prime lens. The image quality of the lens is really good but with my Canon EOS 700D I frequently encountered auto focus issues. Sometimes I needed to take several photos in order to get one with the focus being on spot. To avoid this problem I used to focus manually whenever I could. In the end though I was tired of the focusing troubles, contacted Canon and asked them what it would cost to calibrate the lens. They told me it would cost CHF 120.- per lens which is a third of the price of a new EF 50 mm lens plus it would take anything between 2 – 3 weeks before I’d get my camera and lens back. This was not an option so I decided to sell the lens on ebay and get a new 50 mm prime lens. Read in this post why my new 50 mm prime lens is actually a 45 mm.
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