4 ms·

I guess the difference is some better algorithms to identify cosmic ray issues and the like, as oppossed to simple noise reduction.

• wdfx 3y ago
  Exactly - if you think about the automatic dead/hot pixel removal, the camera is going to assume these errors are always in the same location on the image, and maintain a mapping of where they are. If instead in space these errors are caused by cosmic rays and can affect any part of the image randomly, and for a limited time only, then this requires a different algorithm, otherwise the camera will eventually be painting out the entire image as different areas get affected. That all said, I know nothing of the details of these camera firmwares, and they may be doing other things instead. But, I suspect it is not as simple as some comments in this thread suggest... because nothing ever is.
• KennyBlanken 3y ago
  "Noise reduction" is not dark frame subtraction. What they are very clearly describing is dark frame subtraction, as they repeatedly mention damage from cosmic rays. Things are not helped by this being a press release munged up by a writer. "Noise reduction" is where the camera's image processor applies smoothing over different channels as part of all the other processing it does, such as vignette correction, chromatic diffraction compensation, and remapping for lens distortion. Some but not all of this is bypassed when doing RAW images. RAW processors (especially from the camera manufacturer) typically apply similar corrections automatically, but you have varying degrees of control over this. They're usually better quality due to more computational capabilities, and faster software development cycle vs stuff baked into the camera's ASICs or firmware.