Difference between revisions of "Teleros"
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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.<ref>[http://archive.is/www.cameraeccentric.com/html/info/ross_2.html Ross advertisement] in the ''British Journal Almanac 1938'', at [http://archive.is/www.cameraeccentric.com/ Camera Eccentric] (archived).</ref> 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. | 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.<ref>[http://archive.is/www.cameraeccentric.com/html/info/ross_2.html Ross advertisement] in the ''British Journal Almanac 1938'', at [http://archive.is/www.cameraeccentric.com/ Camera Eccentric] (archived).</ref> 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. | ||
| + | {{Flickr_image | ||
| + | |image_source= http://www.flickr.com/photos/nesster/10491685746/in/pool-camerawiki/ | ||
| + | |image= https://live.staticflickr.com/3790/10491685746_26fb942d5c.jpg | ||
| + | |image_align= center | ||
| + | |image_text= Ross Xpres & Teleros advertisments 1937 | ||
| + | |image_by= Nesster | ||
| + | |image_rights= creative commons | ||
| + | }} | ||
==Notes== | ==Notes== | ||
Revision as of 18:21, 24 September 2019
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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 (archived).
