I like the 1.5:1 aspect too. I saw this saunders easel post recently:
Originally Posted by Arcturus
and if you look at the box in the photo, one of the "checkboxes" is "8x10 35mm full frame". I'll bet I'd like to have one of those. I wonder how hard it would be to find one. And yes standard frame sizes don't work all that well.. I'm thinking of buying a custom "sides and tops" in bulk. I also really like the old 122 format which is closer to 1.7:1. Custom framing needed for that aspect ratio too.