Neocamera just published an express review of the Nikon 1 J4 mirrorless. This is Nikon’s latest entry-level mirrorless featuring an 18 megapixels high-speed CMOS sensor with built-in Phase-Detect AF at 105 points and Contrast-Detect AF at 171 points. The high-speed sensor with electronic-shutter gives the J4 ultra-fast capabilities such as 1/16000s maximum shutter-speed, 60 FPS continuous drive at full resolution and high-speed video up to 1200 FPS, albeit at reduced resolution, compared to the full 1080p HD at 60 FPS which it can also do.
Along with the J4, Nikon introduced a Nikkor 10-30mm F/3.5-5.6 PD-ZOOM VR lens which collapses and is self-capping. It features a smooth fly-by-wire focus ring. Together this keeps the J4 incredibly compact while providing a relatively large 1″ (2.7X crop) sensor, which is much larger than the majority of compacts yet smaller than most mirrorless.
Read on the review to found out how the Nikon 1 J4 balances the compromises of image-quality, speed and size.