Quote:
Originally Posted by Tulloch
8 bit videos are fine for the planets (and extracting Triton).
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Thanks Andrew.
We are sure that you are correct but 8 bit high speed videos unfortunately don't serve much use in our situation. We do use 8bit high speed videos extensively doing mono imaging of the sun. In our planetary set up, the limiting FPS factor is usually exposure. With our smaller aperture there is just not enough photons to use exposures short enough that the high speed 8 bit videos are of benefit. Also we are capturing more pixels with the ASI178 than the ASI224 which means that file size and data transfer rate become an issue. With colour videos ironically 8 bit videos are larger files than 16 bit videos. This is due to AVIs having a separate byte for each colour channel per pixel therefore giving 24 bits (3 bytes) per pixel. Whereas the 16 bit SER files are undebayered and only have a single byte (16bits) per pixel, two thirds of the size of the AVI files.
Hope this makes sense. We were just saying what our set up is and not suggesting that it was the best or only approach.