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Archive 2021 · 6-Bit Coding non Leica lenses

Fred Miranda
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p.2 #1 · p.2 #1 · 6-Bit Coding non Leica lenses

1joel1 wrote:
Okay, so you painted the mount for 11141, as above, and then the camera/RAW developer knew what it was. I don't think that I can manually enter 11141 in the camera, I need to color the spots as above and put the lens detect system on Auto.

Joel

Joel,
You don't need to set "lens detection" to manual.
When you use the code I posted above on your Voigtlander, you can set your M9 to "Auto" and it will apply correction thinking it's the Leica 50/2 APO.

Sep 09, 2021 at 11:13 PM

rscheffler
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p.2 #2 · p.2 #2 · 6-Bit Coding non Leica lenses

Fred Miranda wrote:
The code does not need to show in the camera menu for it to work. Those are just codes that Leica offers for non-coded lenses.

As long as the camera's firmware version is newer than the lens not found in the menu.

Sep 13, 2021 at 03:41 PM

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p.2 #3 · p.2 #3 · 6-Bit Coding non Leica lenses

As long as the camera's firmware version is newer than the lens not found in the menu.

I was wondering if the M9 will also recognize newer 6-bit codes like in the new Leica Noctilux-M 50mm/F1.2 ASPH.
Probably not.

I was thinking about adding this code to my CV 50/1.2 Nokton.

Leica Noctilux-M 50mm/F1.2 ASPH 6-BIT CODE

Sep 13, 2021 at 10:36 PM

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p.2 #4 · p.2 #4 · 6-Bit Coding non Leica lenses

I think it won't work. The last M9 firmware update was in 2017 and it was only released to add support for a couple new lenses:

M9/M9-P/M-E Firmware Version 1.216 M Monochrom Firmware Version 1.022
The following improvements are included in these firmware updates:
Support of the new lens:
• Thambar-M 90 f/2.2
• Noctilux-M 75 f/1.25 ASPH.

Sep 13, 2021 at 10:53 PM

rscheffler
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p.2 #5 · p.2 #5 · 6-Bit Coding non Leica lenses

Yeah, I had a look at Leica's firmware page and it looks like they're no longer doing M9 firmware updates for new lenses.

Sep 14, 2021 at 10:44 PM

1joel1
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p.2 #6 · p.2 #6 · 6-Bit Coding non Leica lenses

Fred Miranda wrote:
For my Voigtlander 50/2 APO, I used the Leica APO-Summicron 50mm f/2's 6-bit code.

Here is a site showing 6-bit codes for numerous lenses:
https://lavidaleica.com/content/leica-lens-codes

Hi Fred,

When I look up the lens, pics show a different code. Is this a different version?
Also, looking at your code, is it looking at the center out or out towards the center. Sorry for all the questions. Can you please post a pict of the back of your coded. Apo Lanthar?

Thanks,
Joel

Nov 01, 2021 at 02:07 PM

Fred Miranda
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p.2 #7 · p.2 #7 · 6-Bit Coding non Leica lenses

1joel1 wrote:
Hi Fred,

When I look up the lens, pics show a different code. Is this a different version?
Also, looking at your code, is it looking at the center out or out towards the center. Sorry for all the questions. Can you please post a pict of the back of your coded. Apo Lanthar?

Thanks,
Joel

The picture above is the correct 6-bit code for the Leica 50/2 APO. That's the one I used on my CV 50/2 APO.
Unfortunately the site I linked was showing the incorrect code.

Nov 01, 2021 at 03:40 PM

1joel1
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p.2 #8 · p.2 #8 · 6-Bit Coding non Leica lenses

Thanks for the clarification.
Joel

Nov 01, 2021 at 03:56 PM

bs1946
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p.2 #9 · p.2 #9 · 6-Bit Coding non Leica lenses

I bought a Kipon iBerit 50mm f2.4 M-Mount lens. It actually has the 6-Bit code positions on the base, but they are blank. I found the 6-Bit code for a Leica Summarit-M 50mm f2.4 which would be the best match to the Kipon iBerit 50mm f2.4. I used a sharpie to fill in the two black positions in the code and my M 262 would not recognize it. I was beginning to think that I also had to fill in the white markings as well. But after reading this about the sharpie being too glossy, I need to try something else. The local drug stores sell nail polish pens which, like the sharpie are easy to use. Just have to see if they carry matte black and matte white.

Sep 19, 2023 at 08:44 PM

1joel1
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p.2 #10 · p.2 #10 · 6-Bit Coding non Leica lenses

So, you can use flat black model paint or flat black paint marker, both available on Amazon. Don't need to worry about the white. You can leave it blank or shiny white, doesn't matter, only the black.
Joel

Sep 19, 2023 at 09:22 PM

Fred Miranda
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p.2 #11 · p.2 #11 · 6-Bit Coding non Leica lenses

1joel1 wrote:
So, you can use flat black model paint or flat black paint marker, both available on Amazon. Don't need to worry about the white. You can leave it blank or shiny white, doesn't matter, only the black.
Joel

If the lens mount is black, like the new Voigtlander Heliar lenses, you can do the opposite and simply paint it white.

https://www.fredmiranda.com/forum/topic/1819458/11#16335419

Sep 19, 2023 at 09:31 PM

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