I've just received today from TCP Voigtlander's distributor the Nokton 17.5mm f/0.95. I have this lens for 10 days and will do more tests, also in the night.
The lens is great and I'm very impressed with this first hands on. It's bigger and louder than it's brother the 25mm f/0.95. On the first clip you will see them both (shot with SLR Magic 12mm), then clip number two is taken with the 25mm and clip number three (and all the others) is shot with the 17.5mm, so you can see the difference of the field coverage.
This lens has very smooth aperture ring, especially when you switch it on the "no clic" position. The focus ring is quite smooth, like the 25mm. The minimum focus distance is very very short, you can shoot quite in front of the glass ! I will do more test to compare with the 25mm and the SLR Magic Cine lens 50mm later.
GH2 24P Vanilla Hack
Voigtlander Nokton 17.5mm f/0.95
Shot from f/0.95 to f/16
Light Craft ND variable filter
1/50 shutter speed
No color correction
Music : Sébastien Tellier "Une vie de Papa"
Thanks to Techni Cine Phot (Pascal Bourgouin) for the lens technicinephot.com/site_institutionnel/Default.aspx