Strangely interesting lens! I really dislike the majority of Thambar images that have been posted on this thread, yet there are some that I like very much and I keep returning to look at them because there is a quality that cannot be ignored or dismissed and goes deeper than the recognisable character of the lens.
I'm not commenting on anyone's photographic ability, my comments are purely directed at the 'Thambarness' (this word has found it's way permanently into the Leica lexicon) and how the outcome is affected and influenced by factors that are not recorded, or even a consideration when using most 'ordinary' Leica lenses.
The only other way to use 'sunlight' to soften an image and introduce glowing softness that I can think of is to click on a preset of that name in Colour Efex Pro. That, of course, is not photography and the outcome is invariably crap, just as some extreme examples of 'Thambarness' are here, but the addictive thing about looking at these Thambar images is that the lens itself is saying it has something amazing up it's sleeve.
When it all comes together someone, somewhere, is going to create art with this lens and I'm looking forward to seeing it. Especially on film.