Difference between revisions of "Frena"
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* '''No. 3''' (4x5 inch) | * '''No. 3''' (4x5 inch) | ||
* '''No. 0''' (2⅝x3½ inch: roughly sixth-plate<ref name=RB/>) | * '''No. 0''' (2⅝x3½ inch: roughly sixth-plate<ref name=RB/>) | ||
− | * '''No. 00'''(as the No. 0, but with an f/11 achromat. | + | * '''No. 00''' (as the No. 0, but with an f/11 achromat. |
* '''No. 10, FOP Frena''' ('Film Or Plate'<ref name=FOP/> | * '''No. 10, FOP Frena''' ('Film Or Plate'<ref name=FOP/> | ||
* '''Frena Max''' (quarter plate<ref>[http://www.historiccamera.com/cgi-bin/librarium/pm.cgi?action=display&login=frenamax Frena Max], also at ''Historic Camera''.</ref> | * '''Frena Max''' (quarter plate<ref>[http://www.historiccamera.com/cgi-bin/librarium/pm.cgi?action=display&login=frenamax Frena Max], also at ''Historic Camera''.</ref> |
Revision as of 18:20, 11 April 2014
Frena cameras are a range of magazine cameras for sheet film, made by Beck from about 1893.[1] They use special sheet film: the edge of the film is notched, and this is essential to the working of the sheet-changing mechanism.
In the original model, as in a falling-plate camera, each sheet is dropped to the bottom of the camera after exposure, by turning a handle on the side forward and back.[2][3] Later models have a different changing mechanism, still relying on notched sheet film, and with exposed sheets being stored at the back of the camera.[2]
The lens on most Frenas is an f/8 Beck Rapid Rectilinear. Some cheaper modes have an f/11 achromat, and an f/6.3 Beck-Steinheil Orthostigmat lens was offered for some models.[4] The lens has adjustable aperture on the better models, achieved by an aperture disc. Focusing is achieved by sets of add-on lenses, each offering a focus range.
The Frenas have sector shutters, like those on many box cameras, but with adjustable sector-width, giving a range of exposure times (from 1/5 to 1/40 second, in the example of the Presentation Frena No. 2).[5]
A by-product of the film-changing mechanism is that the camera can be tilted slightly up, and the film then returned to the vertical using the changing handle (which has a built-in level); this gives the camera rear tilt.[2]
Cameras
- No. 1 (3¼x3¼ inch lantern-silde size; originally simply the Frena, and named the No. 1 after other sizes were added.[2]
- No. 2 (3¼x4¼ inch: quarter plate)
- No. 22 (as the No. 2, but with an f/11 achromat instead of a Rapid Rectilinear.
- No. 3 (4x5 inch)
- No. 0 (2⅝x3½ inch: roughly sixth-plate[3])
- No. 00 (as the No. 0, but with an f/11 achromat.
- No. 10, FOP Frena ('Film Or Plate'[4]
- Frena Max (quarter plate[6]
De-luxe Presentation models were made in some of the sizes.[5] These are covered with brown leather.
Notes
- ↑ 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). p115.
- ↑ 2.0 2.1 2.2 2.3 Frena at Early Photography
- ↑ 3.0 3.1 Frena cameras at Red Bellows: notes on the camera features and use, and some contemporary advertising.
- ↑ 4.0 4.1 FOP Frena at Early Photography.
- ↑ 5.0 5.1 Presentation Frena No. 2 at Early Photography. Includes notes on other sizes and variations in the cameras.
- ↑ Frena Max, also at Historic Camera.