55mm and 250 mm lenses on Mamiya C33

I was recently gifted a like-new Mamiya C33 camera, with an (older) 105mm lens, Porrofinder and waist-level finder. The instruction book makes no mention of using a 55mm or a 250mm lens on this camera, although the focus scales on both sides of the camera make provision for these lenses.

I would like to buy a 55mm and a 180mm, and I would like to ask any Mamiya owners if the 55mm (and the 250mm, should I ever buy one) lenses will work satisfactorily on this camera.

Yes, but for much, much more information read through Graham Patterson's Mamiya TLR System Summary: http://www.gapatterson.org/

Those two lenses were the last focal lengths released for the C series and early C33 models would have predated them. C33 cameras come with a variety of focus scales. They were easily changed. The 250mm is manual cocking and unaffected by the body. The 55mm should be fine on a C33 of any vintage.

I actually prefer the scales on the C33 over the later ones on the C330/220 models, but neither are especially accurate compared to helical focus lens scales.