can't code 35mm?

[lct]

Advertisement (gone after registration)

"Suffice it to code the lens like a Summilux asph or a Summicron 35/2 v4. Works fine for me."

me too..........

Where did you have the work done if i may ask?

[01af]

Moreover, at wide apertures the Summilux 35 mm has less vignetting than the Summilux-M 35 mm Asph, so mis-coding the former for the latter may result in some (albeit minor) over-correction of vignetting.

[lct]

... they run into the contradiction that the 135 "cannot be used thus will not be coded" despite supplying framelines and magnifiers, denying practical evidence to the contrary in the process.

Indeed there is hardly a significant difference between a 135/3.4 with 1.4x magnifier and a 135/2.8 with 1.5x goggles which can be coded by Leica.

[01af]

Indeed there is hardly a significant difference between a 135/3.4 with 1.4× magnifier and a 135/2.8 with 1.5× goggles which can be coded by Leica.

There isn't indeed. Unlike the Summilux 35 mm, both the Elmarit-M 135 mm and the Apo-Telyt-M 135 mm can be coded—even when Leica so far refuses to do it. I heard that Leica plans to offer to 6-bit-code the Apo-Telyt-M 135 mm in the near future, beginning after this year's Photokina.

 

By the way, the Tele-Elmar 135 mm 1:4 cannot be coded, neither by Leica nor by anyone—just like the Summilux 35 mm, the Summilux-M 35 mm Aspherical, or the Noctilux 50 mm 1:1.2.

[lct]

Challenging the obvious is one of your favorite sports apparently. I have no Tele-Elmar but my Elmar 135/4 can be coded as well as my Summilux 35, my Summaron 35, my Elmar 90/4 collapsible and a couple dozens Leica and non Leica lenses. Suffice it to choose the coding that suits you best in the Leica list that's all.

[doubice]

O1af,

 

You are making sweeping statements about what can and cannot be done and if somebody thinks outside of the box and does it, you call them incompetent…..

 

As has been proven above, any lens can be 6-bit milled by a competent technician or machinist (including the original 35mm Summilux and the 4/135 Tele Elmar). It is then up to the user to determine how to code the lens - most of us code to the nearest specifications and experiment. My 135mm Tele Elmar is 6-bit milled and coded as an Elmarit 2.8/135mm - the coding was really not necessary; all it does is that it provides the EXIF data.

 

I have numerous LTM to M mount Leitz adapters that I had milled by John Milich in New York. I use those adapters as needed and code them as needed, with various Thread Mount lenses (i.e. Voigtländer 15mm Heliar, coded as the 16-18-21 Tri-Elmar). Total cost was quite high, compared to what one can buy them for from ‘jinfinance’ among others but, at least I have the assurance that the original Leitz adapters are to perfect specifications.

 

Cheers,

 

Jan

[01af]

Advertisement (gone after registration)

 

It's not possible to 6-bit-code a lens (any lens) so that a digital M camera will recognise it as a Summilux 35 mm. The same is true for the other Leica M lenses I mentioned above. Just why is this so hard to grasp!?

 

If mis-coding a Leica lens for some other Leica lens works you then more power to you. But you will never get your digital M auto-recognising a Summilux 35 mm properly.

[lct]

The camera will recognize the lens as a Summilux asph or a Summicron v4 which is exactly what is expected from it.