By my estimation, I have bought and sold more than 30 cameras since I took up a serious interest in photography while studying at Stanford.  I currently own six (2 Canon, 3 Sony, and 1 Nikon), each serving a different application.  Today I had occasion to think back on the first camera I ever purchased. It was the film-based Konica FS1, distinguished as the first SLR to incorporate a built-in motor drive. It remained my only camera for almost 20 years until I switched to digital in 1999.