SV305 "RAW" capturing settings?

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Miesilmannimea
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Joined: Tue May 24, 2022 2:35 am

SV305 "RAW" capturing settings?

#1

Post by Miesilmannimea »

Hi :)

What parameters should I set in the "Image Controls" window to ensure that the files saved from the SvBony SV305
camera contain as clean, reproducible data as possible.
It's probably not possible to save RAW (as in dSLR) but something as close as possible....

Thanks in advance :)

Jakub
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Re: SV305 "RAW" capturing settings?

#2

Post by admin »

Hi,

you should be able to get basically RAW data from the camera - SharpCap tries to set defaults for that, but the RAW defaults for the SVBONY 305 should be:

RAW8 or RAW16

Contrast = 50
Gamma = 1.0
Saturation and Sharpness =0
All White balance = 128

You can find these yourself in general - set the camera to point at a terrestrial scene with a range of brightnesses and watch the histogram in RAW8 mode while adjusting... When an adjustment is doing something to the raw image you will see peaks or troughs in one or more of the histogram graphs, so set the values until those peaks/troughs disappear. This works for all except the sharpness adjusment.

cheers,

Robin
Miesilmannimea
Posts: 12
Joined: Tue May 24, 2022 2:35 am

Re: SV305 "RAW" capturing settings?

#3

Post by Miesilmannimea »

Thank you :)

Is it possible in RAW16 mode to save debayered TIF files as RGB 16bit/channel?
It is much easier to handle colour files (quick preview etc)

Jakub
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Re: SV305 "RAW" capturing settings?

#4

Post by admin »

Hi,

no, you cannot save RAW in debayered form (the reasoning is that if you do, you cannot then change the choice later about what debayer algorithm to use - SharpCap uses bilinear which is quick, but there are other slower algorithms that may give a higher quality colour image).

Plenty of tools will do this conversion for you, for instance PIPP (Planetary imaging pre-processor).

cheers,

Robin
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