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Murer et Duroni DOR |
 Version française |
Manufactured or assembled in Italy from (Before) 1919 to (After) 1933.
Index of rarity in France: Rare (among non-specialized garage sales)
Inventory number: 20709
See the complete technical specifications
Chronology of cameras Murer et Duroni
Murer et Duroni sont des Italiens qui avaient leur atelier à Milan. Leur production était proposée à la vente en France comme l’atteste la présence de leurs appareils dans les catalogues des revendeurs français.
Le modèle présenté ici est un Klapp fabriqué autour des années 1920. Il est encore présent aux catalogues après 1930. C'est un appareil à plaques de format 6,5 X 9 cm. Un volet métallique protège l’objectif. Une fois remonté, il laisse apparaître un objectif Anastigmat Murer de 108 mm de distance focale et d’ouverture f/4,5, ainsi qu’une fenêtre pour le cadrage. La distance minimum de mise au point est de 1,5 m.
At Murer and Duroni, Klapp cameras are divided into two major families: those with a focal plane shutter and those with a central shutter. They are then classified using a nomenclature consisting of 2 to 4 letters or numbers.
Focal plane shutter:
| First letter | Second letter | Third and fourth letter | |||||||
| D | Fixed front face | U | 4,5 x 6 | 2 | Anastigmat | Murer | f/7 | ||
| F | Platine avant à décentrement | N | 6,5 x 9 ( O from 1914) | M | Anastigmat | Murer | f/6,5 | ||
| L | 9 x 12 ( E from 1920) | T | Anastigmat | Murer | f/3,6 | ||||
| C | 9 x 14 | E | Anastigmat | Murer | f/5,5 | ||||
| K | 10 x 15 | R | Anastigmat | Murer | f/4,5 | ||||
| H | 13 x 18 | 0 | Aplanat | Murer | f/8 | ||||
| W | 45 x 107 mm (Stereo) | Si | Anastigmat | Koristka Sideran | f/4,5 | ||||
| S | 6 x 13 (Stereo) | Ke | Anastigmat | Koristka Equator | f/5,5 | ||||
| Ka | Anastigmat | Koristka Meridian | f/6,8 | ||||||
| K | Anastigmat | Koristka Doppio Gauss | f/5,5 | ||||||
| 3 | Anastigmat | Goerz Dagor | f/6,8 | ||||||
| 4 | Anastigmat | Sintor | f/6,8 | ||||||
| B | Anastigmat | Berthiot Olor | f/5,7 | ||||||
| S | Anastigmat | Suter | f/5 | ||||||
| L | Anastigmat | Roussel | f/4,5 | ||||||
| Z | Anastigmat | Zeiss Iena | f/4,5 | ||||||
| 1 | Anastigmat | Zeiss Koristka Tessar | f/6,3 | ||||||
| 5 | Anastigmat | Primus | f/7 | ||||||
Central shutter:
| First letter | Second letter | Third letter or number | |||||
| U | 4,5 x 6 | L | Plate (simple) | 0 | Aplanat | Murer | f/8 |
| N | 6,5 x 9 | F | Film-pack | 2 | Anastigmat | Murer | f/6,8 |
| G | 9 x 12 | G | Film | 3 | Double anastigmat | Goerz Dagor | f/6,8 |
| W | 4,5 x 10,7 (Stereo) | P | Plate and film-pack (premium) | M | Anastigmat | Murer | f/6,5 |
| S | 6 x 13 (Stereo) | T | Plate (economical) | S | Anastigmat | Suter | f/6,8 |
| I | 6 x 13 panoramique | M | Plate (metal) | ||||
| A | 4 x 5 | ||||||
| O | 4 x 6,5 | ||||||
Klapp cameras with a central shutter can come in three different finishes: economical, standard, or premium.
In the "economical" version, the body is made of alder wood and covered with imitation leather. The viewfinder is integrated into the front plate. The shutter offers only P (Time) and I (Instant) settings. The shutter is of the sector type. The metallic parts are oxidized. Its lens is achromatic. There is only one model of this type, which is a UT.
In the "standard" version, the body is made of aluminum and brass covered with morocco leather.
In the "premium" version, the body is made of aluminum and covered with morocco leather. A mechanism allows for moving the front plate forward to focus from 1.5 meters to infinity. The viewfinder is mounted on the sliding lens cover. The shutter speed can be adjusted to 1/25, 1/50, and 1/100.
(source Malavolti)
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