{"id":298,"count":43,"description":"

What is 4K video?<\/h2>\r\nA frame of 4K video contains 8-million pixels, more than enough to create a nice print of an image, and certainly more than enough to use as editorial on a website.\r\n\r\n\u20184K\u2019 refers to a group of video recording standards that all have approximately 4000 pixels\u2019 horizontal resolution.\r\n\r\nThis contrasts with previous HD and full HD formats, which were labelled with their vertical resolutions (720 and 1080 pixels respectively).\r\n\r\nThe most common 4K video format is ultra-high-definition television (UHDTV), which has a 16:9 aspect ratio, 3840 x 2160-pixel image. This is double the resolution of the previous full HD format, both vertically and horizontally, which means four times as many pixels are used for each frame.\r\n\r\nThe UHDTV format hasn\u2019t really taken off yet as a consumer medium, because there are relatively few TV sets that can show this much detail, and crucially, no programmes are broadcast in 4K. This means it can be easily dismissed as an impractical gimmick, but for photographers this might just be a mistake.\r\n\r\n\"Shooting<\/a>\r\n

Why is this important to photographers?<\/h2>\r\nThe key point lies in the resolution \u2013 a 4K frame contains 8 million pixels. This is in a 16:9 aspect ratio, but a 3:2 crop still has almost 7 million pixels, which is easily sufficient resolution to make a nice 12 x 8in print.\r\n\r\nJust as importantly, current cameras can capture at this resolution at 25 frames per second, and keep recording for tens of minutes at a time.\r\n\r\nSuddenly this gives stills photographers a completely new tool \u2013 the ability\r\nto shoot in high resolution, at high frame rates, for extended lengths of time, and extract key frames specifically for use as still images.\r\n\r\nFor a certain type of purist this probably sounds like heresy \u2013 it\u2019s pretty much the complete opposite of what Henri Cartier-Bresson famously labelled the \u2018decisive moment\u2019. Instead of relying on skill and judgement to capture fleeting moments, photographers can just leave their camera recording and come back later to find the right shot.\r\n

Surely this is just cheating?<\/h2>\r\nWell yes, maybe, but really it\u2019s just another tool in the box. Certain kinds of action are notoriously difficult to nail down: the impact of bat on ball, the unpredictable movements of wildlife, the fleeting smile on a model\u2019s face. With all these, recording in 4K potentially gives the best possible chance of catching the perfect moment.\r\n\r\nFind out more about the practicalities of shooting 4K video stills<\/a>\r\n

What do AP readers think?<\/h2>\r\nIn a recent poll, AP readers had mixed views about using 4K video for stills photography.\r\n\r\n\"4K<\/a>\r\n\r\nAmateur Photographer\u2018s Editor Nigel Atherton said, \u2018Many AP readers are ambivalent about video, so the idea of 4K video modes being the Next Big Thing to appear on DSLRs and CSCs is probably less than thrilling, but maybe you should think again.\u2019\r\n\r\n\"Shooting<\/a>\r\n\r\nAP recently shot one of their cover shots using 4K video, see the results here.<\/a>\r\n\r\nWe tested out shooting 4K video for a range of subjects:\r\n