[Leica] Laundry Marker Coding Works

[robert.rose at mac.com (Robert Rose)]

After paying to code two lenses I decided to give the self coding a  
try.  Using a Sharpie didn't work, because as it turns out I was  
using a fine point and was not getting the dot dark enough.  So I got  
out a laundry marker and really darkened the spots.

Voila!  The camera recognizes the lens correctly.  More important  
than the money, I didn't have to part with the lenses for 6 weeks.

This is important for the wise angle lenses and IR filters, since the  
camera does not do the cyan removal thing without the code.

I believe that the code is also used by the flash system to estimate  
the f/stop being used.

Bob Rose