Hi all, I'm currently considering a few 4x5 field cameras including the Tachihar a (aka Osaka & Calumet XM 4x5) and the Wista 45DX. To initially keep costs down I'd like to start with a roll film back (6x9 & maybe 6x12). My understanding i s that neither of these cameras accept Graflok backs. Is this true? Are there other backs that I could use instead? Any specific recommendations? If you'd l ike to recommend another <$750 4x5 field camera (new or used) I'm all eyes.

Thanks in advance!