<p>Making a flagship product is tough work, and so is improving on it. But Nikon has managed to do that with the D4S, a new flagship camera aimed at professional photographers. It's a souped-up version of 2012's D4, designed to take better photos, faster.</p><p>Like the D4 before it, Nikon's not messing with a working formula. You still get a 16.2-megapixel FX-format CMOS sensor measuring 36.0 x 23.9mm, along with a 51-point autofocus system and RGB 3D metering system. And most all of the buttons on the D4S are where they were on the D4, though Nikon says it has changed the grip ergonomics to work with a wider range of hands. There's also still a 3.2-inch display on the back, a 100 percent view optical viewfinder, and compatibility with both FX and DX lenses.</p><p>Most changes are under the hood</p><p>For the D4S, the majority of the changes are under the hood. That same 16.2 megapixel sensor now has a range of up to 409,600 ISO, an extra stop beyond the D4's 204,800. Nikon's coupled that with a new group autofocus mode it says does a better job at keeping focus on an object that's being tracked, a feature specifically targeted at sports photographers. To pull these tricks off, the D4S has an Expeed 4 image processor which Nikon says results in 30 percent more processing power than the D4. That bumps burst shooting speed up an extra frame from the D4's 10 fps to 11 fps with the D4S. RAW fans can also opt for a newer, smaller RAW SIZE S file, which are half the size of the standard RAW files.</p><p><a href="http://www.theverge.com/2014/2/24/5444142/nikons-fastest-dslr-gets-faster-with-the-d4s-in-march">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.engadget.com/2014/02/24/nikon-d4s-dslr-camera/">Nikon&#039;s new D4S DSLR improves speed and focusing, adds ISO settings up to ...</a> (Engadget)</p><p><a href="http://gizmodo.com/nikons-d4s-an-epic-pro-dslr-in-a-familiar-jumbo-pack-1530089482">Nikon D4S: An Epic Pro DSLR in a Familiar, Jumbo Package</a> (Gizmodo)</p><p><a href="http://www.popphoto.com/gear/2014/02/nikon-officially-announces-flagship-d4s-pro-dslr-maximum-iso-409600">Nikon Officially Announces Flagship D4s Pro DSLR With Maximum ISO of 409600</a> (Popular Photography Magazine)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dCX4N4_jxkDts1MC5AbbU4neZknwM&authuser=0&ned=us">27 additional articles.</a></p>