Difference between revisions of "Holtzem"
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* [[Aplanastigmat]] f/8 (actually a [[Rapid Rectilinear]] / [[Aplanat]] design with four elements in two groups)<ref>Documented example: f/8 to f/64; no serial number; the lens cells are marked with a rubber stamp 'NN-A' (front) and NN-B (rear); ''dimensions'': height 50mm, max Ø46mm, thread Ø41mm, weight 165g [http://www.flickr.com/photos/heritagefutures/sets/72157640115101413/ full strip down and documentation] (Photographica Collection Dirk HR Spennemann).</ref><ref>Other examples: seen on an Union Reisekamera by [[Brückner | Alfred Brückner]] (Rabenau, Germany) (see | * [[Aplanastigmat]] f/8 (actually a [[Rapid Rectilinear]] / [[Aplanat]] design with four elements in two groups)<ref>Documented example: f/8 to f/64; no serial number; the lens cells are marked with a rubber stamp 'NN-A' (front) and NN-B (rear); ''dimensions'': height 50mm, max Ø46mm, thread Ø41mm, weight 165g [http://www.flickr.com/photos/heritagefutures/sets/72157640115101413/ full strip down and documentation] (Photographica Collection Dirk HR Spennemann).</ref><ref>Other examples: seen on an Union Reisekamera by [[Brückner | Alfred Brückner]] (Rabenau, Germany) (see | ||
| − | [ | + | [https://www.liveauctioneers.com/item/8777644_349-union-field-camera-by-alfred-bruckner-c-1900 Breker March 2011 Lot 349]). |
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[[Category: Distributors]] | [[Category: Distributors]] | ||
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Latest revision as of 11:24, 20 January 2023
Carl Friedrich Holtzem was a pharmacist operating in Elberfeld (now Wuppertal, Germany) from 1891[1] to 1901.[2] Inter alia he sold cameras and OEM brass lenses under his own name ('C Holtzem Elberfeld')[3] and presumably also dealt in photochemicals.
On record are:
- Aplanastigmat f/8 (actually a Rapid Rectilinear / Aplanat design with four elements in two groups)[4][5]
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Aplanastigmat f/8 sold by C Holtzem Elberfeld | ||||||||
Links
- Full strip down and documentation of the Aplanastigmat f/8 (Photographica Collection Dirk HR Spennemann).
Notes
- ↑ In that year CF Holtzem seems to have acquired the business from the heirs of Julius von Halfern and registered it under is own name: 'Eintragungen im Handesregister' Pharmaceutische Zeitung 21 Oktober 1891, p. 663.—Also on record in a 1894 court case ('Franz Fisseler, Carl Friedrich Holtzem, Wuppertal-Elberfeld ' Landesarchiv Nordrhein-Westfalen Abteilung Rheinland File HRA 7089, Gerichte Rep. 69 Nr. 1894).
- ↑ Business sold to Rudolf Illing: 'Eintragungen im Handesregister' Pharmaceutische Zeitung 2 Februar 1901, p. 133
- ↑ The OEM for the brass lenses has not yet been identified but may be French.
- ↑ Documented example: f/8 to f/64; no serial number; the lens cells are marked with a rubber stamp 'NN-A' (front) and NN-B (rear); dimensions: height 50mm, max Ø46mm, thread Ø41mm, weight 165g full strip down and documentation (Photographica Collection Dirk HR Spennemann).
- ↑ Other examples: seen on an Union Reisekamera by Alfred Brückner (Rabenau, Germany) (see Breker March 2011 Lot 349).
