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| sent on February 17, 2024 (9:32) | This comment has been automatically translated (show/hide original)
The patents on the spine date back to 1929, but it was produced at a more favorable time: "These meters were being produced at Sangamo Weston 1946-1953. It is made of aluminium alloy and use the Weston film speed system" It reaches about 800 ASA, the full scale of 1600, which by removing the perforated grid from the sensor automatically passes to 50, is the number to be reported on the ruler to identify the time\diaphragm torques. No batteries needed. Incredibly, after 80 years, it still works and is reasonably accurate as long as you slightly compensate for the sensitivity set. I brevetti che riporta sul dorso risalgono al 1929 ma è stato prodotto in tempi più favorevoli "These meter was being produced at Sangamo Weston 1946-1953. It is made of aluminium alloy and use the Weston film speed system" Arriva a circa 800 ASA, il fondo scala di 1600, che togliendo la griglia forellata dal sensore passa automaticamente a 50, è il numero da riportare sul regolo per individuare le coppie tempo\diaframma. Non servono pile. Incredibilmente, dopo 80 anni, funziona ancora ed è ragionevolmente accurato a patto di compensare leggermente la sensibilità impostata. |
| sent on February 17, 2024 (20:41) | This comment has been automatically translated (show/hide original)
Remarkable. At the time, 800 ASA was the same as ISO 500,000 now. There were films at 10 and 25 I think, the higher ones were "special" and hard to find. Notevole. All'epoca 800 ASA era come ISO 500.000 di adesso. C'erano mi sa pellicole a 10 e 25, quelle superiori erano "speciali" e difficili da trovare. |
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