Selecting the glass type prior to lens production
Examination of lens focus mounts .
The manufacture of the helical focussing mount required modification of the machine tools and lathes by Leitz themselves . Solenoid operated jigs and tool posts allowed the multi-start threads to be cut in one or two operations without the need to set up the lathe for every cutting job .
These mechanics are possibly assembling your Leica !
THEY DON'T MAKE THEM LIKE THEY USED TO !
Many people in Wetzlar worked for Leitz . The Steel industry was also a big local employer .
For more info - read the BIOS report
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