The Rubyette is an SLR camera for small plates, made in about 1934 by Thornton-Pickard. It is a small version of the wooden box-form SLR cameras such as T-P's Ruby Reflex and similar cameras made by many other makers. It has most of the features of those cameras; rack-and-pinion bellows focusing, with the lens mounted on a board allowing front rise. The focusing hood is not a folding leather 'chimney' as on most larger box-form SLRs, however, but a rigid folding hood, of the type familiar on TLR cameras, with the facility of a built-in frame finder; this allows the No.1 camera to be used for horizontal pictures.
There are three models:
- The No. 1 is for 6.5x9 cm plates, in vertical orientation only.
- The No. 2 has a revolving back, allowing reflex viewing for vertical or horizontal pictures on 6.5x9 cm plates.
- The No. 3 is for square pictures on 9x9 cm plates.
- McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). p918-9.
- Rubyette No. 1 with Dallmeyer 4¼ inch f/2.9 Pentac, sold at the first Westlicht Photographica Auction, in November 2002.