Contact Printing Frame Sizes
I am in the process of adding a line of high quality contact printing frames to my product offerings. The manufacturer currently makes them in the following sizes:
24x30cm (9.4" x 11.8") - This seems like the perfect size for anything up to 8x10 negatives on paper up to 8.5" x 11". I expect this size will be my biggest seller.
30x40cm (11.8" x 15.7") - Another size that seems very logical. Obviously works well for negatives up to 11x14. And, I also noticed that several types of paper stock favored by alt process printers (Arches Platine, watercolor papers, etc.) come in 11x15 sheets. This frame would work with this size of pre-cut paper.
40x50cm (15.7" x 19.7) - I'm not sure if this is a good size. It would work fine for 14x17, but it a hair too small for 16x20. Also, I know that for sizes larger than 11x14, many printers prefer a vacumm frame over a conventional contact printing frame.
So, I welcome comments on these sizes, and I'd like to hear input for additional sizes, either bigger or smaller.
One thing I've noticed about the current market is a void of contact printing frames in the banquet sizes. Do you think there is a market for contact printing frames supporting 4x10, 5x12, 7x17, 8x20 and 12x20 film sizes? The frames would be slightly oversized (an inch or two bigger than the nominal format size in both directions). Also, maintaining good center pressure should be less of a problem in the banquet formats than the standard formats as you move up in sizes. The length of the back springs would remain reasonably short, and additional springs can be added as the length of the negative increases.
All comments welcome.
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