The abstract form that can be read into some photographs, even those with strong context, is what turns me on. I find this quite analogous to the beauty of the graphical or mathematical demonstration resulting from a good piece of scientific research. Both have abstract beauty and real context. For this scientist-photographer that’s what gives the high. My earlier images featured conventional silver and color printing techniques plus a retro-photographic method (gum printing). Because of the advent of very high quality printers, and archival pigments and papers, I have transitioned to all Giclee (high quality digital) printing. My exhibition photographs were taken either digitally or on photographic film (in which case the images were subsequently digitized). This transition has permitted me to take advantage of the versatility, for creative work, of digital manipulation of images. No effort is made to force the images to look like conventional silver or color prints. Actually, I find it a distinct artistic advantage to manipulate some images to look less like photographs. I am interested mostly in the visual impact of the images.