Could anyone recommend a digital back for a Bronica SQ-Ai?
How many images can be stored?
How does the quality compare with a Nikon D1?
Would it be suitable for shooting weddings?
Right now the best, portable, medium format camera option is the Lightphase from Phase One. However, even this back needs a tethered laptop to
function (the tiny Sony VAIO is the recommended solution). Storage is limited only by the laptop's hard drive.
If you want to do high res and work outside the studio, you should really look into the Kodak 560/660. It's a much better solution on location. Function
and portability are similar to the D1, except 6Mpixel resolution and lower ISO (80-200). Medium format backs for one shot use have severe limitations
in focal length because the chip is still 35mm film size. Your normal 80mm lense is now a portrait length telephoto. If you are like me, I have three
lenses for my Hassy system and with the digital back, they are all normal and longer. The 40mm (slightly wide) is about $3k. It's not a good trade off
when you can have fast fixed aperture zooms and autofocus with the 35mm bodied Kodaks.