Quote Originally Posted by Jeffrey Sipress View Post
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To the OP: Do you never crop your images? Purchasing a group of identical pre-cut mats indicates that. Cropping is your most powerful compositional tool. Every images tells me, along with my experience and study, if and how it should be cropped, although some require none. Therefore, most images have a unique size which requires a matt cut just for it.
I try to crop as much as possible in camera through changing lenses or camera position.

I don't have a 4x10 but sometimes I pre-visualize that in camera. But 80+% of the time, the 8x10 (or 4x5) format suits me. That is why I want to keep things simple if possible.

Also, I don't think I could cut 8-ply and I prefer it to 4-ply mats. So it is much cheaper to buy pre-cut 8-ply windows with bulk discounts if I could standardize to a particular size for the majority of my framed prints.