Archived posting to the Leica Users Group, 2010/05/16

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Subject: [Leica] 2 Interesting items for 6 bit coding.....
From: Frank.Dernie at btinternet.com (Frank Dernie)
Date: Sun, 16 May 2010 08:45:37 +0100
References: <000d01caf483$930434e0$b90c9ea0$@net> <AANLkTilMd6mP-ql25iqpd3gm-ee41WmdLhLzU5b_n_Pr@mail.gmail.com> <001d01caf4ad$11b62630$35227290$@net>

Hi Frank,
it is not just the infinity focus, it is the register accuracy, ie is it a 
correct length spacer. This is particularly important for WA lenses. Leica 
tolerance on this thickness is IIRC less than a 0.001". I would be surprised 
if these inexpensive items will be to this tolerance, or all the same. I 
would imagine one would need to measure a dozen or so to be reasonably sure. 
Registering at 12 noon is also slightly difficult to machine, but since this 
is an obvious cosmetic fault, they probably pay more attention to it than 
the bits that are less obvious...
I look forward to your further comments.
cheers,
Other Frank

On 16 May, 2010, at 05:05, Frank Filippone wrote:

> Yes, I know... I have one....  the other 6 bit coded adapters are now
> selling for $43 each.... 
> 
> The issues are....
> 
> #1.. will it focus properly to infinity?
> #2 .. Will it register at 12 noon?  ( Proper lens orientation)
> #3.. Are the 6 bit codes in the right places?
> 
> I will report back...
> 
> At $15 each, they are a bargain.....
> 
> Frank Filippone
> red735i at earthlink.net
> 
> 
> -----Original Message-----
> From: lug-bounces+red735i=earthlink.net at leica-users.org
> [mailto:lug-bounces+red735i=earthlink.net at leica-users.org] On Behalf Of
> mehrdad
> Sent: Saturday, May 15, 2010 5:06 PM
> To: Leica Users Group
> Subject: Re: [Leica] 2 Interesting items for 6 bit coding.....
> 
> the ltm, were being sold for 100+ when john milch started selling them
> 
> 
> 
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information



Replies: Reply from red735i at earthlink.net (Frank Filippone) ([Leica] 2 Interesting items for 6 bit coding.....)
In reply to: Message from red735i at earthlink.net (Frank Filippone) ([Leica] 2 Interesting items for 6 bit coding.....)
Message from msadat at gmail.com (mehrdad) ([Leica] 2 Interesting items for 6 bit coding.....)
Message from red735i at earthlink.net (Frank Filippone) ([Leica] 2 Interesting items for 6 bit coding.....)