Lens corrections for 24mm ASPH 2.8 Elmarit usable in Lightroom Classic

[Manicouagan1]

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The only M lens that I do not find corrections for in Lightroom is my 24mm ASPH 2.8.   Do any of you reading this note have a set you can post and tell me where to find a set I can load into Lightroom.    I got the lens when 24mm corresponded to the widest frame lines in my M8.  Now I find I use it as much as any in my 35,50,75,90 mm set.

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[Chuck Albertson]

I use the profile for the 28mm ASPH 2.8. I seem to recall they have similar optical formulas, but I could be wrong.

[adan]

The 24 Elmarit f/2.8 ASPH had a really oddball optical formula unlike anything else Leica ever made for the M - about a 1-inch/2.5cm gap between the front element and all the rest of the glass. Almost a throwback to 1960s SLR retrofocus designs (e.g. Leica's 1964 R-system 35 f/2.8) - although much sharper and contrastier (the lens for which Erwin Puts first adopted the word "clinical" ).

http://www.summilux.net/m_system/images/Elmarit24Asph.pdf

Depends on which corrections are needed: vignetting, color vignetting, distortion.

Distortion was pretty unique as well - strong (2% barrel)"handlebar moustache" distortion that never fully corrects back to the corners. No perfect match among recent M lenses, although it falls in between the 28mm Summilux (less) and the 24mm Summilux (even more).

For vignetting, the 24mm f/3.8 Elmar-M (but also the Summiluxes) is probably a pretty close match.

The digital-M in-camera profile should take care of color vignetting problems (and some general vignetting) even before the file is written to the SD card.

[graphlex]

All the same, the 24 Elmarit had its fans, Erwin Puts among them, and Mary Ellen Mark. In 2002, Erwin had this to say: “The Elmarit-M is without a doubt a masterpiece of optical engineering, a landmark design within the Leica M range”.

Edited March 2, 2022 by graphlex
Add Erwin Puts quotation.

[adan]

I wasn't criticizing the 24mm f/2.8 - just noting it had its own very distinct character, that "other" profiles may not be suitable for as subsitutes.