Canon 85mm f/1.8 - a normal prime lens for the masses
1 August 2011
Excerpt: The Canon EF 85mm f/1.8 is a nice piece of glass. Being an EF lens, it is compatible with all EOS cameras regardless of sensor size, which is a definite plus compared to EF-S lenses which are for crop (APS-C) bodies only, like the Canon 10D/20D/30D/40D/50D/60D/7D and Rebel/ xxxD series. The large minimum aperture is great in low light.
Excerpt: I bought this for astrophotography use based on the MTF curves, it appeared to meet all of the criteria. I used it on a Canon 550D, and the results are very disappointing. Extreme coma is very evident making the lens unusable for astrophotography. It is however a very fine daylight portrait lens.
Pros: Easily Interchangeable, Fast / accurate auto-focus
Summary: I bought this NEW directly from Amazon, when it arrived, it was sealed (or so I believed). When I opened it, it was clearly second hand! There were scratches on the lens contacts and had clear signs of use! Amazon is getting a bad habit of this practice! My 40mm I bought NEW from Amazon directly was exactly the same! Both lenses had dust inside also...