[Leica] 6 bit permanent flange adapters: has anyone tried one?

[john at mcmaster.co.nz (John McMaster)]

I ran them for a while before getting genuine 6-bit adaptors at Solms. I 
guess it depends on the lens, more likely to work on a slow wide than a 75mm 
Summilux as the quality control may not be there. It is a reversible process 
if you do not like what has changed and on some lenses only five screws will 
go back in as one is under the 6-bit code.

john

-----Original Message-----
From: lug-bounces+john=chiaroscuro.co.nz at leica-users.org 
[mailto:lug-bounces+john=chiaroscuro.co.nz at leica-users.org] On Behalf Of 
Lew Schwartz

Just saw these on eBay. You actually remove the rear plate from your lens 
and replace it with one of these. Then you look up the lens code and fill in 
the counter sunk depressions with (I guess) black enamel or magic marker. 
The idea is that by having actual depressions to fill in, they won't wear 
off like other diy solutions.