Murer et Duroni NL |
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Manufactured or assembled in Italy from (Before) 1916 to (After) 1924.
Index of rarity in France: Rare (among non-specialized garage sales)
Inventory number: 20707
See the complete technical specifications
Chronology of cameras Murer et Duroni
La page du catalogue présente deux appareils, l'un à obturateur central, l'autre à obturateur focal. L'illustration est celle de l'appareil à obturateur central, car on ne voit aucun système de tension du rideau.
Comme on connaît son format; 6,5 x 9, on en déduit que le nom du modèle commence par N. On sait également par le catalogue que l'objectif est un aplanat f/8. Il n'y a donc pas de troisième caractère ou éventuellement un 0. Le second caractère pose un problème de détermination et semble être un L sans certitude absolue.
![Murer et Duroni NL](../../gestion_catalogue/images/1237548366.jpg )
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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