Chroma key stress test (including motion) This means, for light to medium grading with just one recompression step, XAVC S is perfectly fine.įor heavier grades or multiple compression iterations, Prores HQ should be used. There is only a slight difference, especially in the green channel. Here are full frames (JPEGS, click to enlarge) of a double-Color Finesse layer on the same Cine1 image from the previous lesson. In a 24p timeline, one frame is the equivalent of 42 milliseconds. ![]() This latency is obviously from the camera via HDMI – first of all due to the inherent latency in HDMI, and secondly because it has to trigger the Shogun to record as well. There is a one-frame delay between the internal XAVC S recording and the Prores versions. We’ll be testing all of the above codecs at 24p. ![]() I’m going to be comparing XAVC S with Prores HQ, 422 and LT, so we know where each one stands. In this part we’ll study latency, grading and chroma key. In this lesson we’ll compare the quality of the internal XAVC S codec against Prores HQ, Prores 422 and Prores LT to understand when to choose which.
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