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2 0 1999
1.5 0 2154
Don't understand me wrong, it is a nice, bright and cheap 28mm which it includes autofocus in the price.
But things are worse when using this lens manually, the focus ring is very thin, if you use the DOF marks as frecuently as me you will notice that they should have included f/8 marks.
Regarding performance, this lens need to be stopped at f/5.6 or f/8 in order to get the best out of it, extreme corners will be still unsharp, but who looks there?
Wide open it is sharp and shows good contrast in the center of the frame. Corners are other story.
I used it a lot with an APS-C camerabody like the Canon EOS 50D, on such cropped sensors this lens works pretty good as poor corners are not shown. On such ASP-C cameras it covers the viewing angle of an equivalent 45mm full frame lens.