Summary: This lens is proof that fixed optics are usually sharper than their zoom counterparts, until you get to the really big dollar glass. I have a Nikon J1 and have used this lens along with the 10-30 and 30-110 zoom lenses common for this camera.
Summary: A good lens and very small. But as the kit lenses also do 10mm and this is only F2.8 I can't help feeling they should have tried to make it a nit faster to differentiate it more from the zooms, or made it cheaper! Of course that would mean larger lens; but it is a nice lens and very small.
Summary: All the fixed lenses from the Nikion 1 series are must have when you have this system. They are good quality and operation is fast and reliable. The 10 mm 2.8 is great for situations where you have low light condition, speed and the need to capture more than normal in one frame.