I shot this image of peonies on a light box in two panels, which were later stitched together in post-production to make a peony panorama. Each panel was photographed with a Nikon D800 and the Zeiss Otus 55mm f/1.4 on a tripod. There were eight exposures in each panel, with the aperture at f/11 and ISO set to 100. Shutter speeds on each ranged from 1/40 of a second to 2.5 seconds. With the two panels stitched together, then cropped for composition, the resulting file is quite large, 10,321 pixels by 4,712 pixels at 300ppi. This means I can make a 34″ wide print with no enlargement of the file, and it would be easy with no sweat to enlarge this two or three times with no noticeable loss of quality.
Other resources: I also have an upcoming workshop on Photographing Flowers for Transparency, and webinar recordings are available on Painting in Transparency Using a High-Key Layer Stack and Using Backgrounds and Textures.