Difference between revisions of "Rothschloss"
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| − | The '''Rothschloss''' is a rare camera for 18x24 exposures on 35 mm film, made by ''' | + | The '''Rothschloss''' is a rare camera for 18x24 exposures on 35 mm film, made by '''Rothgiesser and Schlossmann''' of Berlin, in about 1930. It is of a curious design, with the features of a pseudo-TLR and an SLR camera. There is a 'viewing' lens above the 'taking' lens, which gives an image on a ground-glass screen, as in any TLR. However, the viewing lens does not focus (the camera focuses by a helical control behind the taking lens and shutter unit), so when used in this way, the camera is a [[pseudo-TLR]]. It is also possible to move the ground-glass screen (and presumably its mirror) and focus the image from the taking lens on the ground-glass,<ref name=W23>[http://www.auction2000.se/auk/w.Object?inC=WLPA&inA=20130118_1303&inO=628 Rothschloss] serial no. 232, sold at the [http://www.auction2000.se/auk/w.ObjectList?inSiteLang=&inC=WLPA&inA=20130118_1303 23rd Westlicht Photographica Auction], on 25 May 2013.</ref> so that it is in fact an [[SLR]] camera.<!-- This is my understanding from the notes on the cited example at Westlicht, but if it's correct, why does everybody call it a TLR? Please correct this if you know better than me! D McA Sept 2013 --> This adjustment is presumably done with the knurled wheel on the right side of the camera. There is a magnifier for the ground-glass screen; this is not attached to the camera, but consists of a simple magnifer with a leg, which mounts in a socket next to the viewfinder screen.<ref name=B>[http://auction-team.de/new_highlights/2007_06/ph/005.html Rothschloss] with Triplar lens, in the highlights of the sale [http://auction-team.de/new_highlights/nh_ph_06_2007.htm Photographica and Film], on 9 June 2007, by [http://www.auction-team.de/english/index.htm Auction Team Breker]; photographs showing the film magazine and the magnifier, with its own case.</ref> |
The taking lens on most examples seen is a 5 cm f/3 Rothschloss Anastigmat, but some examples have a 5 cm f/2.8 [[Steinheil]] Triplar.<ref name=B/> Either lens is mounted in a dial-set [[Compur]] shutter, with speeds 1 - 1/300 second, plus 'B' and 'T', and focusing down to 1.5 metre. The film is loaded in a removable magazine, incorporating the back-plate of the camera (rather like the [[Pentax 645]]). There is a frame-counter dial on the left side of the body, which counts to 50. | The taking lens on most examples seen is a 5 cm f/3 Rothschloss Anastigmat, but some examples have a 5 cm f/2.8 [[Steinheil]] Triplar.<ref name=B/> Either lens is mounted in a dial-set [[Compur]] shutter, with speeds 1 - 1/300 second, plus 'B' and 'T', and focusing down to 1.5 metre. The film is loaded in a removable magazine, incorporating the back-plate of the camera (rather like the [[Pentax 645]]). There is a frame-counter dial on the left side of the body, which counts to 50. | ||
Revision as of 22:23, 7 September 2013
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The Rothschloss is a rare camera for 18x24 exposures on 35 mm film, made by Rothgiesser and Schlossmann of Berlin, in about 1930. It is of a curious design, with the features of a pseudo-TLR and an SLR camera. There is a 'viewing' lens above the 'taking' lens, which gives an image on a ground-glass screen, as in any TLR. However, the viewing lens does not focus (the camera focuses by a helical control behind the taking lens and shutter unit), so when used in this way, the camera is a pseudo-TLR. It is also possible to move the ground-glass screen (and presumably its mirror) and focus the image from the taking lens on the ground-glass,[1] so that it is in fact an SLR camera. This adjustment is presumably done with the knurled wheel on the right side of the camera. There is a magnifier for the ground-glass screen; this is not attached to the camera, but consists of a simple magnifer with a leg, which mounts in a socket next to the viewfinder screen.[2]
The taking lens on most examples seen is a 5 cm f/3 Rothschloss Anastigmat, but some examples have a 5 cm f/2.8 Steinheil Triplar.[2] Either lens is mounted in a dial-set Compur shutter, with speeds 1 - 1/300 second, plus 'B' and 'T', and focusing down to 1.5 metre. The film is loaded in a removable magazine, incorporating the back-plate of the camera (rather like the Pentax 645). There is a frame-counter dial on the left side of the body, which counts to 50.
Notes
| Camera industry in Berlin |
| Agfa | Amigo | Astro Berlin | Bermpohl | Bopp | B+W | Foth | Goerz | Grass & Worff | Jacknau | Levy-Roth | Ernst Lorenz | Plasmat | Rudolph | Rothgiesser & Schlossmann | Rüdersdorf | Schulze & Billerbeck | Sida | Stegemann | Romain Talbot |
- ↑ Rothschloss serial no. 232, sold at the 23rd Westlicht Photographica Auction, on 25 May 2013.
- ↑ 2.0 2.1 Rothschloss with Triplar lens, in the highlights of the sale Photographica and Film, on 9 June 2007, by Auction Team Breker; photographs showing the film magazine and the magnifier, with its own case.
Links
- Rothschloss serial no. 129 with Rothschloss Anastigmat, sold at the thirteenth Westlicht auction, on 7 June 2008.
- Rothschloss serial no. 183, with case and box, sold at Sale 5142: the Ganz Collection of Magic Lanterns, Optical Toys and Pre-Cinema, 22 January 2007, by Christie's.
