Nikonian DSLR shooters will soon be able to use their existing F-mount lenses with Nikon’s 1 System line of mirrorless cameras. The FT1 adapter launches next week in Japan on December 22nd for ¥23,310, or roughly $300. Most lenses in the mount system will be compatible, and AF-S lenses will have the added advantage of being able to utilize the cameras’ autofocus systems. Be prepared for massive crop though — the tiny sensor on the cameras mean that your lenses will have a crazy 2.7x crop factor. A 50mm normal lens will turn into a 135mm telephoto lens.