Hi, I'm looking into purchasing a Graflex RB Super D. The Graflok models go for quite a bit more, and I'm wondering if there is really a major downside to sticking with a Graflex back, and maybe using a bag mag?
I suppose if you don't mind being quite severely limited it might work out okay. Graflok, though, allows the greatest flexability... including the ability to use "normal" film holders. For most people that capability is considered a basic necessity.
It's just a matter of finding the right holders and backs on the auction site, or anywhere else you can. I've been using the graflex backs and bag mags without too much hassle. works ok for me.
I borrowed a 4x5 camera from a friend, and unwittingly pulled a number of graflex holders, in addition to graflock holders off his shelf. I now am wise to the two incompatible systems from the same company - ah, I love innovation.
Jim seemeds to have about 40 graflex holders, and I am not sure if he even still has a camera that uses them. If you are interested, I can ask him if he is in the mood to sell any, and get you in touch.
As far as I know there isn't a Polaroid holder for a Graflex back, and I haven't heard of anyone hacking a Polaroid to fit (although it may be possible). I don't follow Super D prices, but I have a feeling one with a Graflok is a lot more expensive ($200-300 more?), and they are much, much more difficult to find. Converting a Graflex back to a Graflok on a Super D isn't a do-it-yourself job, either. I suspect a milling machine is involved, and the skill to run it. So if you must use Polaroid, you need a Graflok (I actually hope someone will tell me I'm mistaken). This post has more details: http://graflex.org/helpboard/viewtopic.php?=&p=26084
If you can live with 4X5 sheet film, Graflex holders and bag-mags work fine, although it will take a bit of searching to find some. You may get lucky and find a Super D that includes some holders. There are Graflex roll holders and even Grafmatics, but these are pretty rare.