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Earlier quoted context omitted.
A manual sensor clean in most cameras does this. If mirrorless, leave the cap on
It's not about dust on the sensor, it's actually software that maps dead pixels to fill them in every time you take a picture (as well as dark frame offsetting, presumably)
It’s a poorly written and badly explained article. The first comment does a great job of explaining why, and how the new “firmware” actually works
And the title is erroneous. The firmware used the noise reduction circuits to disguise the effects of cosmic rays on the sensor.
Earlier quoted context omitted.
If you use a Sony A7 series camera, every month, the camera will take a picture upon shutting it off, which it uses to remove dead pixels/hot pixels - you can hear it, actually. If ever you have a pixel die or get stuck, you can also manually set the date a couple months ahead and turn it off - it will most likely be fixed when it turns back on.
> If you use a Sony A7 series camera, every month, the camera will take a picture upon shutting it off So THAT is that mysterious click-clack of the shutter that randomly appears on my A7S2. I've been putting off sending it in for repair, but now I can completely avoid that. Many thanks! Do you happen to have a link to some documentation for it?
Maybe because the FX30 lacks the physical shutter, and instead relies on you putting a lens cao on? If so, I'd expect the A9iii to have the message too.
Earlier quoted context omitted.
A manual sensor clean in most cameras does this. If mirrorless, leave the cap on
Many cameras have a menu option to trigger a dark frame calibration. Been a thing for a long, long time.
The noise reduction they're referring to is dark frame subtraction used for thermal noise and defective hot pixel removal (the latter is what the ISS has to worry about.) Numerous cameras from other companies allow for forcing that on at any speed via menu options, not just slower shutter speeds. I had this feature available on an early 2010's Olympus. They called it "Noise Reduction" (not "noise filter", that's diff…
The noise reduction they're referring to is dark frame subtraction used for thermal noise and defective hot pixel removal (the latter is what the ISS has to worry about.) Numerous cameras from other companies allow for forcing that on at any speed via menu options, not just slower shutter speeds. I had this feature available on an early 2010's Olympus. They called it "Noise Reduction" (not "noise filter", that's diff…
I guess the difference is some better algorithms to identify cosmic ray issues and the like, as oppossed to simple noise reduction.
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.
Earlier quoted context omitted.
> If you use a Sony A7 series camera, every month, the camera will take a picture upon shutting it off So THAT is that mysterious click-clack of the shutter that randomly appears on my A7S2. I've been putting off sending it in for repair, but now I can completely avoid that. Many thanks! Do you happen to have a link to some documentation for it?
Funny, on the FX30 it's actually exposed as a setting with a proper description. Maybe because the FX30 lacks the physical shutter, and instead relies on you putting a lens cao on? If so, I'd expect the A9iii to have the message too.
The noise reduction they're referring to is dark frame subtraction used for thermal noise and defective hot pixel removal (the latter is what the ISS has to worry about.) Numerous cameras from other companies allow for forcing that on at any speed via menu options, not just slower shutter speeds. I had this feature available on an early 2010's Olympus. They called it "Noise Reduction" (not "noise filter", that's diff…
This is things like dead pixels, hot pixels and amp glow.
If a cosmic ray was removed by a dark frame, two cosmic rays would have had to happen, one during dark frame and one during the actual capture. They'd have had to be the same intensity and hit the same pixels. This is probably never going to happen.
As for who this is for? You and I may benefit too with less cosmic ray noise in our photos. We still see them, though we have a lot more information in our photos. You can see them too if you take dark frames yourself. Even if you put your camera in the freezer to avoid most other noises you'll see them