Function/data graphs made with Claris CAD, Photoshop and Maple and geometrical schematics with EucliDraw.
Color photographs taken through the three spectroscopes with a Nikon CoolPix 2200 digital camera. The source was either a suitable lamp or a homemade DC arc. Spectrum photos processed with Photoshop, Gimp, MW Snap 3 and Iris.
Black and white photographs taken with the author father's Exacta Varex 35 mm reflex camera loaded with Agfapan 100 Panchromatic film. The source was either a suitable lamp or a homemade DC arc. Spectrum photos processed with Photoshop, MW Snap 3 and Iris.