A digital camera has many fewer moving parts than a film camera. There’s no need to wind up the film, advance it or rewind it back into the cartridge. So, there’s no film advance lever or rewind knob. What about the dedicated Shutter Speed Dial and Aperture Ring we see on some of the more popular digital cameras? It’s all electronics, controlled by the microchip at the heart of all of our modern electronics. That microchip also converts and processes all the analog data captured onto the image sensor into digital form, performs noise reduction, etc. So, here’s a look at a microchip (although it’s an “old” one), real close.