Which cameras were used on the missions prior to Apollo 11 ? I know that the moon landings used Hasselblad medium format.
According to this NASA PDF, Apollo 7 and 8 did not take hand-held cameras, instead using vehicle mounted Maurer or custom-built cameras.
Apollo 9 had a Hasselblad Superwide, Apollo 10 had no hand held cameras, and Apollos 11 through 13 had custom built Hasselblad Lunar Data Cameras. Apollos 11 and 12 also had a 'Closeup Stereo ALSCC' camera.
There is a complete report on the camera systems used in the Gemini and Apollo programs here.