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

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

On the M9 it reduces corner vignetting...

john

-----Original Message-----

I just ignore the coding for my 35 Pre-Asph lens, works just fine even with 
the M8 set for coded lenses.

Gene

----- Original Message -----

You have an aspherical (rather than asph)? Time to retire ;-) The 35mm 
Summilux pre-asph cannot be done either, but they are cheap enough (compared 
to an aspheric) that I took a Dremel to mine.....

john
________________________________________


I have had my Nocti and 75mm f1.4 coded and aligned but they can't do my 
35mm f1.4 aspherical, which used to be my most used lens.
FD

On 10 Nov, 2012, at 07:04, John McMaster <john at mcmaster.co.nz> wrote:

> Old lenses that can be 6-bitted? The 75mm Summilux and f1.0 Noctilux have 
> six screws but lose one, not sure how many other older lenses can have 
> their flange converted, I know the 35mm Summilux cannot.
>
> John
>
> -----Original Message-----
>
> Nope.  Older lenses, have 5 screws.  I counted.
>
> Frank Filippone
> Red735i at verizon.net
>
>
> -----Original Message-----
>
> All lenses are 6 screw, just there are two different layouts and one style 
> loses a screw when 6-bitted...
>
> john
>
> -----Original Message-----
>
> Gene.. you order the flanges for the FL of the lens in question....
>
>
> Remember to count the number of flange screws..... the correct number is 
> either 5 or 6 screws.
>
> BTW the screwdriver to use is available through Amazon.com ... order the 
> set of small Phillips head screwdrivers made by WIHA.  About $20 for the 
> set...
>
> Frank Filippone
> Red735i at verizon.net
>
> You need the correct mount with the right tab to identify the lens data 
> also.  I know, I bought a new 21 Elmarit Asph M back in '08 and it was 6 
> bit coded at the factory, it would not register the lens data when mounted 
> on my M8, it did not bring up the correct set of frame lines (yes I know 
> the M8 does not have frame lines for the 21, but it does have to bring up 
> the 28/90 lines for the data to be recorded, manually selecting them with 
> the frame lever made the data show up).  At Photokina, I had the Leica 
> tech guys looked at it, and it had the wrong mount, but the correct code.  
> Evidently it had the old 21 Elmarit Asph mount. The older mount does not 
> have the correct cam on the mount, evidently they changed it when the 
> 6-bit coding was applied, and my copy did not get the changed mount cam 
> when coded at the factory.  Had it fixed under warranty and now works just 
> fine.  So a universal mount with depressions cut into them will not work 
> unless the cams on the mount are corre
 
 ct
>  for the lens to be coded.
>
> Cheers,
> Gene
>
> 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.
>