 So here at the Sony and who are you? My name is Mark Weir. I'm the senior technology manager for digital imaging here at Sony Electronics We're here at CES 2016 We're going to talk to you today about the new a7r mark 2 and a7s mark 2 cameras, which shoot 4k video internally these models are in the market already a7r mark 2 was introduced last summer and gained a lot of interest along the photography and videography community because it's a 42 megapixel camera that can capture 4k video and can do it very very cleanly and without any artifacts which is common with high-res when you're trying to shoot video with high-resolution cameras With 42 megapixels we can operate in both the full frame 4k recording mode for 3840 by 2160 at 24p or 30p We also have an option to crop for super 35 and shoot at 24p or 30p And when we've cropped at super 35 we can have two times over sampling for an amazingly well graded and sharp image in 4k So these cameras using a full frame sensor. It's one of only two cameras Available today that can shoot 4k video on the full width of the image sensor. This is the a7r mark 2 It's in the market today at about $3,200 for the body the second camera that we're going to talk about today Is the a7s mark 2? So the a7s mark 2 is physically the same as an a7r mark 2 We're showing it here with a video lens a 28 to 135 servo zoom video lens But the difference with the a7s mark 2 is in the image sensor instead of using a high resolution Sensor which is great for both stills and video the a7s mark 2 uses a low megapixel sensor This is just 12 megapixels and the purpose here is to get maximum Sensitivity and dynamic range we're using a full frame sensor with just 12 megapixels the individual pixels are very large Have tremendous light gathering capability that couldn't be possible with a higher resolution sensor And also they have very high saturation levels So this camera can deliver Sensitivity and dynamic range that allows it to see beyond human vision you can shoot video and stills up to 409,000 ISO And the camera can shoot clean 4k video in light that is lower than what you can see in So the real advantage here for both photographers and videographers is the ability to capture in light So low that other cameras would very much struggle this camera can shoot cleanly easily At a hundred thousand ISO which is well above the limits of any other camera available today in its class So this camera can shoot 4k video across the full frame sensor It's one of only two cameras that can do that and record internally in the XAVCS codec 100 megabits per second or 60 megabits per second 24p or 30p So this is the a7s mark 2 and this is in the market We reached the market in October and November of 2015 and this is positioned at about three thousand dollars And so the video enthusiasts are very excited about these full frame Cameras for 4k. Yeah, the reason why is that? There really are no cameras that are shooting 4k video across the full width of the image sensor That's very very challenging to do and by using a very large image sensor like that Videographers can control the plane of focus to use depth of field as a As a part of dramatic storytelling they can shift the plane of focus from an actor in the foreground to an actor in the background And that becomes part of the storytelling of the video so full frame and what full frame brings to video Production is a tremendous advantage, and that's one of the things that's been very attractive for videographers Of course on top of that you have the advantage of interchangeable lenses and lenses that can match the requirements of video This is very special one right yeah This particularly is well suited for video because in addition to having a zoom. It's also a servo zoom There's a motorized zoom, which is something that you can't find in lenses for SLRs It's also a par focal lens, so there's no focus ramping There's no focus breathing which again is not something that you find in lenses designed for SLRs But only lenses that you are designed for video So some videographers are probably saying that this is the best camera in the world Well, some have said that there's no doubt, but there's room for both of these models The a7s mark 2 is particularly well suited to those who are shooting in low or no light and not in control of their lighting situation a7r mark 2 is Again a tremendous advantage for videographers But this is more suited for those that want to be able to have high-resolution performance for stills and video and Perhaps don't need quite as much capability in low or no light But the two of them are really a pair and they appeal to videographers and photographers alike Just slightly different applications depending upon their work, but when it has a great performance for low or low light Does I mean it has great performance for all kinds of light to also for a lot of light? Absolutely It's not just a question of low light It's a question of wide dynamic range And that's really where the the very very large pixels of the a7s mark to come into the benefit