I don't know - I think if it were possible with the current hardware, Nikon and Sony would have done it - especially Nikon since they put the option in already. The thing is, it's easy to assume that we know all we need to about the data stream / management in the camera, but there are likely aspects of its operation we're not privy to that may affect the way something like pre-capture can be implemented.Having tried this feature on the Z9, which currently requires you use jpg, you select the length of time you want to precapture for once you fully press the shutter. If you selected .5 seconds, it’s dumping everything before that .5 second from the buffer, writing the .5 second of images to the card and everything shot afterwards and you can easily shoot for a couple seconds. If you were shooting 20FPS in HE*or at 15fps in lossless RAW, you should be able to keep shooting for an infinite amount of time. I would think 15-20FPS would be sufficient. Given that it the A1 has a larger buffer to compensate for the slower cards, I would think they could also implement it at 15-20fps, even if it required lossy RAW. I would be happy with it at the lower fps for RAW so either they/others don’t think it would be useful at the lower fps or there is another reason like maybe a patent that might be preventing it. Unless I’m missing something it seems like it is technically feasible.
edit: having thought about it a little more, cameras start writing to the card after the first image, so filling .5 seconds of buffer with precapture will have a larger impact that I implied, but it should still be technically feasible at the slower frame rate or HE*/Lossy RAW formats.
Also glad to see concern from others for keeping threads on topic now.
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