Nikon has announced the launch of the D4, the replacement for the D3s as its flagship high-speed SLR. Improvements include a 16.2-megapixel FX-format sensor, extendible ISO range 9100-1280 (it can go as far as 204,800) and 10 frames per second shooting with autofocus. Another key improvement is a 91,000 pixel metering for more accurate metering, white balance, flash exposure, face detection and Active D Lighting (Nikon’s system for boosting shadows and preventing highlights burning out). The new D4 also supports full HD 1080p video and improved sound recording, underscoring the importance of high-quality video recording in today’s top-end SLRs. The official price of the Nikon D4 is £4,799 and it’s due to go onsale on the 16th of February. Watch out for a full review in Digital Camera soon!