Noise reduction question M11P

[75 suited]

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I was out shooting lightnings the other day and did a 6 minutes exposure, after the 6 minutes of letting the light in, the camera took another 6 minutes for noise reduction. Now my question is, is the noise reduction necessary when shooting at low ISO on tripod? Especially at those extra long exposures. 

I guess the noise reduction was on by default. Thank for the feedback.

Edited September 20, 2024 by 75 suited

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[hmzimelka]

For me personally, I don't think it's necessary. 

I do the occasional 2-8 minute long exposure, and haven't been bothered by hot pixels. 

The image below was exposed for 4 minutes and can't find a single odd pixel. I've seen a few odd pixels with my 8min exposures but its so minimal it doesn't at all justify the LeNR wait time...

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[75 suited]

I turned it off too I figured even if there are any hot pixels it takes way less time to remove them in post than wait every time. I will see how it goes

[Photoworks]

some of the software like Capture one and LrC already remove hot pixel

and for the noise I would suggest using DxO PureRaw