Summary: This is one of the best lens for the price! Been using it with my Sony A7R and the Fotodiox Leica M mount adapter! Sharp images at F1.4, no vignetting at all whatsoever! 40mm gives a little more focal length so when shooting full body portraits it doesn't give a weird wide angle/fisheye effect like the 35mm would! Great for a walkaround lens for both portraits and landscape! Can't say enough great things about this little lens! Highly recommend it!
Summary: THE SPECS: The solid metal build is nice. It's beautiful to look at. There is an impression of quality that comes from the lens' weight in your hands. The clickity clack of the aperture ring is pleasing. The focus ring is buttery smooth. An all around beautifully designed lens. The image quality is unbelievably great. It doesn't have that soulless digital look. The color rendition and depth it provides is more natural.
Summary: This is an excellent lens. I have been using it with an adaptor on the Sony A7. The Pros: -Small & Lightweight. -Beautifully built. -Focusing is smooth and has a small throw, which makes quick focusing easy. -Aperture ring feels solid, and has half stops. -Bright and Beautiful f/1.4. The Cons: -Soft and Glowy wide open. (Might be a pro for some, not for me.) -A little too much vignetting wide open. -A fair amount of CA in some areas.
Excerpt: Amazing little lens. Super small, light weight but very solid build. Looks and feels great on my Sony a7. Easy to operate, clicks are solid, focus is smooth but not loose (perfectly dampened). Overall very happy with this purchase.
Summary: IN MY LIFE LIKE US ALL, I MAKE MISTAKES. BUT THIS WAS NOT A MISTAKE, BUT A BOON AS IT IS DEMONSTRABLY ACCURATE AND SIMILAR TO ALEICA LENS AT TEN TIMES THE PRICE. I BOUGHT SUCH WITH A VOIGTLANDER BESSA R4A FOR THE COMBINED PRICE OF $1249 DOLLARS. THESE WILL WITHOUT A STRETCH OF IMAGINATION INCREASE IN VALUE BY THE POWERS OF EXPONENTS AS VOIGTLANDER CEASED MAKING THE BESSA FILM CAMERAS.
One of the best fast Leica M-mount moderate wide angle lenses
John Kwok, Amazon
4 November 2012
Summary: Voigtlander has caused quite a sensation over the past few years for users of 35mm rangefinder cameras, with its relatively inexpensive line of cameras and lenses. Most of the lenses have been praised for their excellent performance at a price far lower than equivalent Leica glass. Without question, one of the optical jewels in the Voigtlander line is the recently introduced 40mm f1.4 Nokton, which has received lavish praise in many photographic magazines, including...
Summary: I have too many lenses. Zeiss, legacy Leitz, CV, and Russian. Many choices... and yet, this is the lens that usually winds up on my camera. I have the MC version, and filed down the flange (easy - instructions on the web, use a metal nail file) so that it brings up the 35mm frame lines on my M9. Fits those lines better than any of my 35s. It is amazingly sharp, even wide open, and only improves as its stopped down.
Summary: Bought from Photo Village who gave exceptionally good service and information before the sale, so would not hesitate in recommending them. The Single-Coated version of the lens was bought for use with a Panasonic GH2 so a converter ring is vital to have or to buy. The setting must be changed in the GH2 software to allow the use of this manual lens, and that change was simple but somewhat buried deep down under Custom.