The Leicavit rapid winder with telegram code SYOOM was introduced in 1951 for use with Leica screw-mount cameras. It is the predecessor of the Leicavit MP which was used beginning in 1956 on the legendary first Leica MP.
The SYOOM rapid winder can be used on all Leica screw-mount cameras with serial number above 400 000 without modification. Earlier models need a conversion of the main transport shaft and a bigger coupling pin on the outside of the camera body.
The first version of the Leicavit has a switch at the base plate which changes between single and series frame rate. Due to the fact that this system was prone to failure it has been discontinued in 1953.
The folllowing model from 1953 onwards has no switch and was in production until 1963.
Many of the Leicavit rapid winders were used by professional photographers and so it is difficult to find a Leicait in very good or mint condition nowadays. If a very good preserved one shows up, these beautifiul items ask their price.
Total production: not known
Rarity forecast: R7