Purple trees

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Alexandre Salvador avatar
First image with my ASI585MC using Sharpcap.
No filter applied. The trees are magenta! Is this normal?

Daniele Borsari avatar
Since you're using no filter, it's probably the IR sensitivity of the sensor.

You are including a bit of the infrared part of the spectrum, like in infrared photography.


Daniele
Oscar H. avatar
I remember what fire looks like with a full spectrum modded DSLR - it's pink or purple

infrared photography is nice; I remember I lost interest because of the prices.
Arun H avatar
Also - there is no white balance being applied, unlike in normal photography where you preselect a white balance or apply a custom balance after the fact. This is one of the reasons, by the way, we use color calibration in astrophotography. PixInsight’s spectrophotometric calibration allows you to use, for example, specific types of stars in your image as standard references to calibrate.


https://www.cambridgeincolour.com/tutorials/white-balance.htm
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Armin Lukas avatar
Alexandre Salvador:
First image with my ASI585MC using Sharpcap.
No filter applied. The trees are magenta! Is this normal?


Make sure to use a UV/IR cut filter for imaging (especially DeepSky Photography). The ASI585MC is letting through parts of the IR spectrum. 
Other than that a color calibration will take care of the colors.
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