This wee Darlot will cover a 5X7 format. It is wide field, but it isn't a wide angle lens. The aperture wheel just sets in place by gravity. f10, f16, f22, and f50! But if you poke the center washer out and use it without the aperture wheel, it is a generous f6. In this config it is quite sharp in the center and the sides degrade nicely. And finally, if you're the type for lens torture, if you use just the rear group alone, it becomes a very interesting 12" soft focus lens that covered my 11X14 Deardorff. No, I didn't make pictures with it, just played on the ground glass. It's for YOU to make some pictures and show them off. $95 + shipping.