I use full frame. This is a wide aperture, so it is not suitable for portraits. I sometimes use it indoors and outdoors, when it is impossible to move away from the object and shoot at 50 mm. For me, the 35mm lens is narrowly applicable. The lens is worth its money. The Chinese analogue Canon EF 35 mm f/2.0 has 7 aperture blades instead of 5 for canon and the price tag is 3 times less.
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