I am also using a Mamiya c330f. Unlike the 645AFD, this camera is a 6 x 6cm square format and looks way cool. It has a viewing lens (where you compose your photo) and a taking lens (the one that actually opens up and exposes the film). With this set up, there is no viewfinder or prism (where you look to frame and focus your photo in your dSLR). The c330f is also designed to be focused while it is at waist level. It also utilizes interchangeable lenses like the 645, but it does not take different film backs. Whatever roll is in there, you're stuck with until it is finished! Perhaps my favorite feature, the c330f doesn't use batteries at all. It is completely mechanical! Right now, I have a 80mm 2.8 lens only.
They are both absolutely amazing cameras. I could not be happier with my choice of tools.
The film choice:
There are so many film choices. For the meantime, I'm working with Kodak Portra 160, 400, and 800 for color, and Kodak Tri-X 400 for black and white. Why Portra you may ask? Simply put: it is forgiving. I have the ability to fudge the exposure just a bit, yet still get an incredible image. Once I am consistently nailing exposures on film, I'll play around with different films like Fuji 400h.
FINDing help:
I picked up a copy of Film Is Not Dead (aka: FIND). This book has been immeasurably helpful. I would consider it to be a great resource for those looking to rediscover film in a digital dominated era. It talks about the effects of different film stocks, labs, equipment, and much more. I definitely recommend it to any photographer or enthusiast.
The photos... so far:
I am still relearning the medium. Many photos aren't perfect yet, but that's the beauty of this process. I am rediscovering old tricks and learning all sorts of new ones. The change of pace is welcome and refreshing. For a moment, it felt as though my techniques had grown stagnant. With this new adventure, however, I feel myself going forward as a photographer again!
All of the photos in this post are from my 645afd and with Kodak Portra 400 or 800 film with a 80mm 2.8 lens. (I had not gotten my 80mm 1.9 or my c330f by the time I sent this batch to the lab.)