I've been doing my homework before a potential ULF purchase. I'm leaning towards 8x20 over 7x17, but am concerned over lens availability, especially new, wide angle, lenses. There appear to be a number of lenses with specs that indicate they cover 7x17 but not 8x20. However, I know that specs are often conservative, and particularly so if you are contact printing. Below are the lenses I have found in this category. Is anybody using any of these guys on 8x20 (or bigger) successfully?
Grandagon 200mm
Super Symmar XL 210mm
Super Angulon 210mm
Apo-Sironar W 300mm
G-Claron 355mm
Nikkor W 360mm
Apo-Symmar 360mm
TIA,
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