Hey... I want to get an additional SLR camera so that I can experiment with black and white and different films, etc... I have my uncle's Pentax P30 and it has sigma lenses... I just want a body that I can use these lenses with so I don't have to buy more... Does anyone know of a fairly cheap camera (I don't care if it's 50 years old -- as long as it takes 35mm film) that will fit my sigma lenses?