![]() ![]() ![]() ![]() The Koreans probably knew that, so they decided to make it a lot better than Sony's implementation. Yes, Sony had that since last year, so Samsung can't claim first. But because the on-sensor DRAM can only hold so much at a time, the recording rate is limited to one second and, at least on the S9, you can only record in 720p. After that the frames are passed on to the buffer and to the storage to be saved as a file. The sensor temporarily writes all the frames to the super-fast DRAM embedded inside the sensor itself, which greatly reduces latency. But when you are capturing 960 frames per second, there is no time to output the files to the image buffer. Normally, the sensor would write all the frames it captures to the image buffer, which would then get saved to the storage as the final output. There is something else to steal the spotlight - 720p slow-mo capturing at 960fps, thanks to the new DRAM buffer. The camera prioritizes your face and this it handles the exposure pretty well every time the light conditions change. It has lots of detail, good colors, and contrast. Apple iPhone X in our 4K video compare toolĪnd here is a 1440p video sample we shot with the selfie camera. The Samsung Galaxy S9 is ready to meet the competition in our Video Compare Tool. It does an excellent job stabilization the otherwise wobbly 4K videos. Samsung Galaxy S9 allows for digital video stabilization in addition to the (always-on) optical one on all 30fps videos. They are quite sharp, with plenty of detail, but other than that - they have the same essentials - great dynamic range, accurate colors and white balance, high contrast. The 1080p videos at both 30 and 60 fps are also identical in quality. And dynamic range is nothing short of impressive. There are no focus issues or compression artifacts. The colors are great though, and so is the contrast and white balance. They are free of noise, there is enough of detail, but the foliage presentation is not the best we've seen. The 4K videos captured both at 60, and 30 fps are virtually identical in quality. Older computers however, may struggle playing back the files smoothly. The H.265 compatibility is pretty widespread already - Windows 10 and macOS support it by default, YouTube supports it, new phones can play it - you get the picture. This could mean the world to users who record tons of videos, so we'd recommend to use the HEVC option for everything. Since the bitrate is lower, there is about 100MB difference in the footprint in every the 30s of 4K video footage. The videos captured in H.265 are virtually identical in quality to the ones recorded in H.264. It's not a deal breaker as they are still fairly smooth however, we're surprised we observed this only on the S9 and not the S9+. The 60fps were steady at all times, but oddly the clips we captured at supposedly 30fps had an average bitrate of about 26fps. The other modes are captured at an almost halved bitrate of their H.264 counterparts. The H.265 4K videos at 60fps carry a bitrate of 42Mbps, while the audio is still stereo at 256Kbps. The audio is always recorded in stereo at 256Kbps bitrate. With the H.264 codec, the 4K 60fps are captured at 72Mbps bitrate, the 4K 30fps - 41Mbps, the 1080p 30fps - 13.3Mbps, and the 1080p 60fps - 27.5Mbps. OIS is available, and you can even use digital video stabilization on the 30fps clips. The Samsung Galaxy S9+ supports 4K and 1080p video recording at 60fps or 30 fps, and it can be captured in the widespread H.264 or in the new H.265 (HEVC) format. ![]()
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