I may pick rather a good looking 9x12 plate camera for throw away price but without lens/shutter. May I know whether 9x12 can take lens from folders like Agfa isolette?
If not, may I ask what lens/shutter does it take for shooting portraits?
Most 9x12 cameras use a 135mm lens. The 105mm folder lens would probably be unsharp in the corners or not even cover the corners. 6x6 folder lens will not cover. For lens that can cover 9x12cm you can use any lens that fits the camera mounting hole and will focus with the available bellows. Some may be too large to allow the camera to properly fold. If you like a longer lens for portraits the Ektar 203 f7.7 might work for you. It fits OK inside my Zeiss Maximar camera. Also if the camera doesn't come with any film holders or a roll film back make sure the kind the camera uses are easily available to you.