Voigtlander 25mm f0.95. £550 inc postage within UK.
Note that this is a Micro Four Thirds fit lens and mounts on MFT directly without the use of an adapter.
I bought this new in July 2011 and it's in as new condition and complete with the original 52mm pinch lens cap, lens hood, 67mm lens cap (it's supplied with two lens caps, one that fits straight onto the lens and another that fits onto the lens hood) and the original box.
It's a lovely thing and at one time it was the only lens I used as if you're happy with the FoV this lens is pretty much perfect offering apertures from f0.95 to f16 and it can focus really close (0.17m) and can be used as a pseudo macro lens for flower shots and the like.
The build quality of this lens is very good and it's the best made lens I've ever owned or used. It just oozes quality. Luminous Landscape said...
"If all you've ever owned and used are contemporary lenses from the majors, such as Canon and Nikon, you'll be in for a treat when you first pick up the f/0.95 Nokton. This lens is old school, and I mean that in the most complimentary way. I'm not just referring to its technical features (or their lack) either."
Here's their review...http://www.luminous-landscape.com/reviews/lenses/voigtlander_f095_25mm_micro_43_nocton.shtml
As I said, the lens is as new and any white specs visible are just dust.
A couple of 100% crops, the second is at f0.95.
If anyone wants it, BT please.