Yes, the Betterlight has an image area of 72 x 96mm, but I do use extensive rise/shift movements. I think that would get close to 4x5 film territory. I've not shot much film on the Wistas, so you are probably right. And if that does happen, it may be possible to minimize it using rear tilt/swing in combination with front movements. A little convoluted, and not as easy as with a monorail, but it can be done.
Kumar
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