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M200 sensor dust and what are these white pixels?

Started 2 months ago | Discussions thread
Sittatunga Veteran Member • Posts: 5,406
Re: M200 sensor dust and what are these white pixels?
2

StrugglingforLight wrote:

Sittatunga wrote:

StrugglingforLight wrote:

After researching discovered those white pixels are "hot pixels" that occur when doing long exposures. And it's fairly common. Apologies for the dumb thread.

Not a dumb thread at all. Canon cameras will map out a lot of those hot pixels if you force a sensor clean from the khaki spanner menu. I don't think that's possible with the M200 though.

The only "workaround" I could find for the M200 is turning on noise reduction for long exposure. That only affects the jpg though, I think. In raw, has to be fixed in post.

It works in RAW too, because the camera takes a second, equally long (dark) exposure with the shutter closed and subtracts that from the original light exposure. That's very noticeable with a 30 second exposure.

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