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#Shutter encoder review full#
Image Credit: CineDĪs you can see, shooting in UHD full frame on the Sony A1 there seems to be some sort of downsampling happening internally, which combines pixels and therefore reduces the noise, leading to better dynamic range results: 12.7 stops for SNR = 2 and 13.8 stops for SNR = 1. IMATEST internal 4K (full frame) dynamic range result for the Sony A1 shooting SG3.C/SLOG3 at ISO800. That is on par with the Canon R5 for example (which showed 15.5 ms in 8K DCI (17:9, which is 7% less picture height). Shooting at 8K full-frame 25 frames per second, a very good rolling shutter of 16.6ms is obtained (lower is better). In 8K, we are talking 33 megapixels of resolution per frame (UHD = 8.3 megapixels)! Impressive! But now, let’s jump into the lab results! Rolling Shutter of the Sony A1 This is really astonishing, as most graphic cards are stumbling already to playback 4K H265 files on a FullHD (1920×1080) timeline. Adding noise reduction (3 frames temporal and spatial) of course causes a massive drop of playback, but you still get about 8 fps with the settings depicted further down in this article (5 stops under with noise reduction) – of course, GPU load is then hovering around 90% and 16GB memory is used.
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GPU memory usage was around 10GB, with the GPU running at around 30% load. Thanks to NVIDIA we have a loaner RTX3090 card at our office, and believe it or not, using the 8K H265 files on an 8K (7680×4320) DaVinci Resolve (17.2) timeline was effortless and rather fluid.
![shutter encoder review shutter encoder review](https://www.italdron.com/themes/italdron/assets/images/sensori/Arri-Alexa-Mini-1.jpg)
Using the NVIDIA GeForce RTX3090 card with the Sony 8K H265 files Also, my dear friend and colleague Johnnie made a review of the camera including one of his special “Johnnie signature” mini-documentaries here. Under the hood, the Sony A1 offers spectacular features (read more about those here), like internally recorded full-frame 8K up to 30 fps or 4K 120fps, all in 10bit with proper LOG encoding in S-Log2 and S-Log3, and an additional ProRes RAW recording possibility with the external ATOMOS NINJA 5 recorder (see our article here). I really do like the rather small physical size and weight in comparison to other full-frame cameras like the Panasonic S1 or S1H for example. We recently put Sony’s new flagship of the Alpha series, the A1 through our lab test procedures – curious to hear how good it really is? Then read on …Īfter testing the Sony a7S III some time ago, it was nice to hold a Sony Alpha camera in my hands again.