System camera camera version lens kit series sigma sd effective pixels 29 megapixel total resolution 33 megapixel sensor format aps c sensor type foveon x3 quattro sensor size 23 6 x 15 8 mm image processor dual true iii display properties anti reflection coating fixed display type lcd display size 3 inch display pixels 1 620 000 frame coverage display 100 lens mount sigma sa focal length 30 photo focal length 35mm equivalent 45 mm crop facto