Difference between revisions of "Teleros"
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|image_text= Ross Xpres & Teleros advertisments 1937 | |image_text= Ross Xpres & Teleros advertisments 1937 | ||
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==Notes== | ==Notes== | ||
Revision as of 08:50, 28 May 2022
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The Teleros is a telephoto lens made by Ross of London. It was introduced in 1922, and replaced the Telecentric. It was made until at least 1938.[1] It was made in a wide range of focal lengths, from a 4-inch Leica-fitting lens to a 40-inch lens intended for 8½x6½ inch plate cameras. It was available as an f/5.5 with magnification of two (i.e. the back-focus is one half of the focal length) or an f/6.3 with a magnification of three.
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| Ross Xpres & Teleros advertisments 1937 image by Nesster (Image rights) |
Notes
- ↑ Ross advertisement in the British Journal Almanac 1938, at Camera Eccentric.
