He argued that existing focusing aids in single- and twin-lens reflex cameras were either bulky or slow to use, and made it hard to follow action (presumably referring to the dim and left-right reversed view in a ground-glass). He criticised rangefinder mechanisms for making cameras more expensive and more difficult to use. His mechanism erects a ground-glass screen.
The plate-holder, and tilted somewhat downward; then the lensboard is tilted down (on a short bellows), so that the lens casts its image on the focusing screen. The lens is focused using a helical mechanism part of the camera, not of the lens.
After focusing, the lens is swung back to its taking position and the focusing screen simultaneously folds away. For viewfinding, the camera relies on a frame-finder, with parallax-error correction. The focal plane shutter needs attention as I can't trig it. I don't want to overforce anything and I prefer saying it doesn't work.
The Som Berthiot FLOR 4.5 135mm wears patches on front lens (no scratch). The lens is appaired with the camera (same serial number). The iris turns as it should and is perfectly circular.
The helicoid focusing system works as it should. The body is leatherette covered and has marks of age, with some paint loss on metal parts. An automatic sliding plate holder is included.
Definitively a must have for collectors, a very good base for restoration. L'item "LUBO Camera Reporter 9x12 (Lucien Beaugers) with SOM BERTHIOT Flor 4.5 135 read" est en vente depuis le lundi 21 janvier 2019. Il est dans la catégorie "Photo, caméscopes\Photographie ancienne\Appareils photo anciens\Appareils à soufflet". Le vendeur est "jaytral" et est localisé à/en Paris. Cet article peut être livré partout dans le monde.