TTArtisan 28mm f5.6

[pippy]

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53 minutes ago, SamMen said:

...My question, has anyone coded their lens and does the camera read the code?...I have coded it correctly...The code used was from Akaralabs lens code list 001011. It is listed for the Summaron 28mm f5.6...

Are you aware, SamMen, that the optical design of the TTA lens has nothing in common with that of the Leica Summaron?

Just for clarification the Summaron uses, in essence, the same 6-Element in Four Groups in a classic Symmetrical Double-Gauss design as chosen by Leitz for their 1955 original. It is, by now, using a 70-year old formula and renders as one might expect.

That of the TTA, by contrast, is a (non symmetrical: non double-gauss) 7-Element in Four Groups design which employs glass with a high refractive index for elements 1 and 7 and one further lens (2 IIRC) composed of low-dispersion glass. It is a very Modern formula and renders as such (I have compared it directly back-to-back with an Elmarit ASPH v1 and the results were nigh-on indistinguishable).

As such coding the TTA as a Summaron might turn out to be a fairly pointless exercise; I really don't know one way or the other.

If you do manage to code it as something/anything, however, and the results obtained are improved by the effort then please do let us know.

Good Luck!

Philip.

Edited May 1 by pippy

[SamMen]

Thanks pippy, (Philip)

Yes, totally aware that they are different lenses, in all the ways that you have mentioned.

My intenttion was more in not having to manually select the lens, everytime I put it on the camera. I just want the EXIF data to automagically tell me what lens was used.

Edit: thanks for the tip on the Elmarit. I will have to try the versions in the camera and see what they do to the images photgraphed.

Edited May 1 by SamMen

[pedaes]

14 minutes ago, SamMen said:

I just want the EXIF data

Be careful you do not also get some vignette correction you do not need (as cautioned by @pippy ).

[SamMen]

I finally got the M240 to read the coding that I was able to put on the lens.

Read in a forum, don’t remember which one, that the M240 code reader LEDs might be more sensitive than the newer M digital cameras, so I added another layer of paint to the coded area. Success, the camera reads and displays the code and EXIF correctly.

Now to test the built in code and this painted code, and see what the results look like in photo processing compared to what the rear of the camera looks like, for each setting.

thank you all, once again for your support and patience.

sam

Edited May 6 by SamMen

[pedaes]

6 minutes ago, SamMen said:

displays the code and EXIF correctly.

 As in 28mm f5.6. Leica call it fraud😀

[SamMen]

Got this lens earlier this year. It was an anniversary gift from my wife.

just started using it and have noticed what looks like a small hair with attached follicle in my photos. 
cleaned the sensor on my camera, so I know it’s not sensor related.

looking through the lens, I see this dark spot. Have cleaned front and rear elements, and it’s still there!

Dies anyone here know of any diagrams on how to take this lens apart, so that I can get this out of the lens.

the spot does move, as photos have it in a similar area from two different outings, but it’s not able to move out of the way.

yes, I can and have been retouching my photos, but I should not have to do this from a lens that’s new out of the box.

 

“Out dam spot”-MacBeth