I'm brand new to pixinsight. I've been going through the tutorials. But I've run across a question about the Calculate Image Scale and Field of View. The program asks for the pixel size in microns, the width in pixels, and the length in pixels. The problem is that I have a Canon T4i. The Canon specs are not listed this way. Canon shows all their specs in mm. Can someone help me get the correct specs for way pixinsight wants them? Thanks