One of many technical challenges in stop motion animation are the flicker issues, which I encountered along the way during this project. Flicker can be caused by a multitude of things. At first I thought the flicker was caused by the power in my building, because the building is old. Usually in older buildings the power is not consistent. But after unplugging lights, using different outlets, trying ungrounded plugs, and doing several other tests I realized that it was not a ‘building’ power issue. I realized that the flicker was being caused by the type of lens I was using: Canon 18-200 EF. The problem with Canon digital lenses is that the iris moves ever so slightly, causing fluctuations in the light over time. This is not ideal for animation, because it’s perceived as flicker (although not the worse kind of flicker).
I was looking around for an ideal old piece of glass, and I found a 17mm FD Canon lens on KEH. I could have gone Nikon as well, but there wasn’t anything available. I initially used a Fotodiox adaptor (FD to EOS), but it proved to be too soft. I knew that there had to be a better adaptor out there, and that is when I found out about a guy named Ed Mika in Collingwood who is making mounts for the old FD’s. Ed Mika’s adaptor allows for an accurate flange distance between the lens and the sensor…unlike cheap adaptors.