1
Chronos User Discussion / Re: New to Chronos 2.1 questions
« on: June 22, 2019, 06:02:13 PM »If saving the whole 5 seconds, it will take more than half an hour to save the entire buffer of a 16GB camera. The Chronos 1.4 saves 1280x1024 CinemaDNG files at about 3-4fps, and RAW 12-bit packed format at 4-5 fps. If saving in RAW 12-bit packed, the file will be 3/4 the size of either CinemaDNG, and the file can be converted to a set of DNGs using our python script: https://github.com/krontech/chronos-utils/tree/master/python_raw2dng
If you want to save only portions of the video to save time and storage space, it's easy to scroll through the footage on-camera and select a region to save. You can come back to the camera after it's done and save more regions too.
Thanks for all the answers!
I am trying to imagine a practical scenario I would shoot - say a splash, many times and not take too long between takes. I am not use to very high frame rates (only really up to 120fps), so I guess at 1000 there's 200secs of footage for a 5 sec take(played at 25fps). when you only really need 10 secs a lot of the time when played back.
So would it be a case of shooting multiple takes and editing/cutting/selecting the footage off the ram inside the camera and storing only the "select" part of the event, then running another take with the available free space on the ram? If so, buying the camera with the largest ram would be the most useful?
Would it be easy to play the take and cut it down off the camera between takes?
Usually setups for between anything you want to slow down takes a bit of time to reset, so there is spare time to cut and throw away the unused parts of the footage, but probably not 30minutes worth!
Thanks again, Paul