Excerpt: At first I thought the 10mm (27mm equivalent) would be too wide angle for a general purpose lens, but then I found myself liking the wider field of vision as a "normal" lens anyway. Besides, with just a bit of cropping a 35-40mm equivalent can be easily achieved. Its "pancake" design makes for a very compact high quality point & shoot digital camera which can easily be carried in a jacket pocket.
Summary: This wide angle pancake lens allows you to work close to your subject while opening up the space that makes their environment. The modest aperture is more than sufficient to capture low, natural light images. Mounted to the V1 body, you have a small, unobtrusive camera that can take superb images. I prefer to use the camera in B&W mode, with no flash. Bump up the ISO to create a little grain and you're very noir.
Summary: Way better lens than you would expect for a compact camera. Good for photos, indoor parties, (maybe) landscapes, anything a classic 28mm film/full-frame lens was used for. It won't turn your V1 in to a Leica but you will be a lot more likely to have it with you than your DLSR. It isn't flat enough to let you carry your V1 in a shirt pocket, but certainly in a coat pocket or in a cargo pocket.
In short, I fully recommend this pancake prime lens.
7 March 2014
Summary: lens of great quality, I bought it mainly because it is the smallest lens for Nikon 1 series cameras, in order to obtain a configuration that was as portable as possible to take with me my Nikon 1 J2, since the length overall body of the machine plus the 10 mm is only about 5 cm, then enough pocket.
Summary: I got a deal on a Nikon J1 used and was impressed by the quality and then bought a used 10mm lens and wow. A Thanksgiving day trip to Chicago and for grins I carried around the J1 with this pancake lens on it and now have 2 canvas prints on the wall and was amazed at the quality of the wide-angle 16 X 20 print of the river. I have trouble lugging my Canon DSLRs around but the J1 is a really great size and I couldn't believe the quality of the prints.