Thank you, (I think to have understood what I must to do)
I will tell something as soon as I try.
I will tell something as soon as I try.
Etiquette, expectations, entitlement...
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Show posts MenuQuote from: Walter Schulz on April 11, 2019, 12:39:54 PM
Try Prefs tab -> Powersave in Liveview -> Enable while recording ON & Turn off LCD after 5 sec
Quote from: Kharak on April 11, 2019, 12:44:43 PM
I have no experience with astrophotography.
But would MRaw or Sraw work for decreased sizes? not sure how the sharpness is though. Should be better than a HD frame by frame though.
Quote from: a1ex on April 11, 2019, 12:53:35 PM
The full-res silent picture mode can do long exposures (it's limited to 15 seconds in mainline, but there is a patch available for bypassing this limit), so... it's technically possible to implement, as long as you use our DNG format (not CR2).
Just not a priority for me right now.
It's also possible (and maybe easier) to crop the full-res CR2/DNG files in post. I'd try something along these lines:
- extract the Bayer raw data (dcraw -4 -E *.CR2) -> 16-bit PGM files containing unmodified 14-bit raw data
- crop the files with ImageMagick (mogrify -crop 1000x1000+500+500 *.pgm)
- use pgm2dng to convert the PGM files to DNG
Slightly related: the full-res silent picture code can also capture dark frames; it's not implemented either, but if you run it outside LiveView, that's exactly what you are going to get.
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