What are the dimensions of the image sensor used in the Sigma SD10?
The sensor is 20.7mm X 13.8mm in size with 2268 columns by 1512 rows of pixels. Each pixel consists of three stacked photo detectors sensitive to blue/green/red. See this Foveon PDF file for full details. It is the same 2:3 aspect ratio of 35mm film but has 1/3 the active area of the 36mm X 24mm 35mm film frame. 04. How do you adjust for the telephoto effect of the 50mm macro lens? Yes, there is a 1.7X factor here which makes the 50mm lens seem like an 85mm would for full frame 36mm x 24mm 35mm film. For normal slide or negative copying I do not use the focusing bellows. The Sigma macro lens is mounted on the SD10 and directly coupled to the bellows of the slide copier attachment. This setup will give fine 1:1.8 (whole frame) to 1:1 (cropped) reproductions. The slide copier itself has lateral up-down and side-to-side motion built in for cropping off center. It all works out quite well. 05. Does your photographic method produce better images than a scanning system? I really do not know.
