I've never shot stained glass, but I would think first and foremost you would want to use a tripod definitely. I think that if it were me....I would use an aperture of about f/11 for maximum DOF throughout the whole stained glass and as long a shutter speed necessary to get the right exposure. I'm guessing you will need longer shutter speeds on this, especially if shooting from the outside. I would also bracket my shots going at least 2+ and maybe 1- to make sure I got my exposure right. I loved stained glass and would not only try to get the whole of the window but also maybe play with some close-ups as well.......hope that helps but like I said I'm not an expert on stained glass photography.

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