Can dark frames be used in Nebulb?

Nebulb performs stacking and noise reduction without using dark or bias frames, since, in landscape astrophotography they are not really necessary.

The explanation for this is that when a star tracker is not used, the sky is changing for each of the captured images and, therefore, when Nebulb aligns the stars so that they are all in the same position, the noise moves. And precisely this moving noise makes it possible to remove it really well in the stacking process.

Another different thing is in deep space astrophotography using star trackers, since, in those cases the noise remains “static” and the use of dark and bias frames can be interesting.

That said, it is not strictly necessary to use them on many of these occasions either.

This is an example of deep space photography without dark frames:

One of 113 30-second RAW images captured during 1 hour (with a regular Nikon D810, a 500 mm lens and an equatorial mount)

Image result of stacking and light pollution reduction in Nebulb

Having said all this, it is likely that in the future Nebulb will also include the possibility to use dark and bias frames (to obtain even better results in deep space astrophotography), but for the moment this option is not available because one of the main principles of Nebulb is to keep things as simple as possible.

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Updated on 8 de January de 2024