Nikon 1 series

The Nikon 1 series is a discontinued camera line from Nikon, originally announced on 21 September 2011. The cameras utilized Nikon 1-mount lenses, and featured 1" CX format sensors.
The series included the Nikon 1 V1, J1, J2, and S1 with a 10-megapixel image sensor, the V2, J3, S2 and AW1 with a 14-megapixel image sensor and further increased autofocus speed to 15 frames per second (fps), and the 1 V3, J4 with a new 18-megapixel image sensor, further increased autofocus speed to 20 fps, 120 fps HD slow-motion at 1280 x 720 and 1080/60p. The J5 model added a 20.8MP sensor in 2015 and kept most other technical specifications the same as the J4 model.
At the time of announcement, Nikon claimed that the cameras featured the world's fastest autofocus, with 10 fps—even during videos—based on hybrid autofocus (phase detection/contrast-detect AF with AF-assist illuminator), as well as the world's fastest continuous shooting speed (60 fps) among all cameras with interchangeable lenses. Slow-motion movies can be captured in up to 1200 fps with reduced resolution. Its inbuilt intervalometer enables time-lapse photography.
Nikon discontinued the Nikon 1 series in July 2018.
Lens system.
Nikon developed an entirely new system of lenses and the Nikon 1-mount lens mount for the Nikon 1 series. These lenses are only compatible with 1-mount cameras. Nikon has not debuted a new lens mount since the F mount that routine users of the Nikon D series are accustomed to. Although the F-mount adapter FT1 enables the use of all F-mount compatible lenses, these lenses are meant to be portable and compact. There are 13 Nikkor lenses specifically built to fit the Nikon 1-mount in addition to several manual focus lenses from Samyang.
Optional accessories.
In addition to the already available lenses, flash, cases, GPS unit etc. Nikon presented at PDN PhotoPlus International Conference + Expo 2011 many forthcoming lenses, LED video and macro lights and video kits. Every lens shown at the 2011 PDN PhotoPlus trade show but the macro lens of unknown focal length were eventually released before the system was discontinued.
Reception.
Independent reviews and image comparisons at all ISO speeds in JPEG and additionally Raw are available. Both of the initially released 1 series cameras were criticized for having DSLR-like prices. DxO Labs awarded the J1 sensor an overall score of 56.