Is the new 28 Summicron any better ??

[kuau]

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It is my understanding that version 2 and the latest 28 Summicron share the same optical formula yet the new Summicron places the rear element in a more optimized spot for the M11 Does this actually make a difference when used on the M11 compared to version 2?

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[m410]

Interesting question.  

Can your share where you read/heard "version 2 and the latest 28 Summicron share the same optical formula yet the new Summicron places the rear element in a more optimized spot for the M11" ?  

Any mention if this rear element shift would  benefit any other digital Leica camera?

[Zeitblom]

The then chief optical designer Peter Karbe said in one of his lectures that there was no need for owners of the first version of the Summicron-M 2.0-28mm to switch to the newer version. There would be slight differences in the areas of blur at the edges of the image, but these were hardly visible in practical photography and could therefore be ignored.

[LeicaR10]

Kuau,   The most recent version of the M 28mm Summicron-Asph lens has the same optical formula as the immediate previous version.  The previous version was improved optically and does resolve better at the edges and corners.  This was carried over into the latest version of the 28mm Summicron.  Below is the link from Red Dot Forum that describes the latest changes to the lens.  Is is a stellar lens and I use it for landscape photography.  The only Leica 28 mm lens that is in a class unto itself is the SL 28 Apo Summicron.  r/ Mark

Try:  https://www.reddotforum.com/content/2023/10/new-leica-summicron-m-28mm-f-2-asph-iii/

Edited February 18 by LeicaR10