Debayering on ASI533MC

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zerolatitude
Posts: 51
Joined: Mon Mar 01, 2021 5:24 am

Debayering on ASI533MC

Post by zerolatitude »

The lights show RGGB in the FITS header
Darks and flats show GBRG
Seem to work fine, but could this cause problems at any stage?
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admin
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Re: Debayering on ASI533MC

Post by admin »

Hi,

are you using the Flip option at all? That switches round the pattern and I wonder if perhaps it does not work for the darks/flats?

cheers,

Robin
zerolatitude
Posts: 51
Joined: Mon Mar 01, 2021 5:24 am

Re: Debayering on ASI533MC

Post by zerolatitude »

Hi,

No, I dont use Flip at all.

Just double checked with the camera settings file.

FITS Header: Lights
SIMPLE = T / C# FITS: 05/07/2021 20:09:15
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 3008
NAXIS2 = 3008
FRAMETYP= 'Light ' /
SWCREATE= 'SharpCap' / v4.0.7728.0, 32 bit
DATE-OBS= '2021-05-07T14:39:00.6578848' / System Clock:Est. Frame Start
RA = 202.698291666667 /
DEC = 47.0871111111111 /
EQUINOX = 2021.34699453552 /
OBJCTDEC= '+47 05 13.000' /
YBAYROFF= 0 /
FILTER = 'LPro ' /
GAIN = 102 /
OBJECT = 'M51 ' /
OBJCTRA = '13 30 47.000' /
XBAYROFF= 0 /
BAYERPAT= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
BAYOFFX = 0 /
BLKLEVEL= 15 /
COLORTYP= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
CCD-TEMP= 9.8 / C
YBINNING= 1 /
XBINNING= 1 /
YPIXSZ = 3.76 / microns
XPIXSZ = 3.76 / microns
EXPTIME = 15 / seconds
ROWORDER= 'TOP-DOWN' /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
BAYOFFY = 0 /
INSTRUME= 'ZWO ASI533MC Pro' /


FITS Header: Dark
SIMPLE = T / C# FITS: 04/28/2021 12:07:21
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 3008
NAXIS2 = 3008
OBJECT = 'M66 ' /
GAIN = 102 /
FILTER = 'LPro ' /
DATE-OBS= '2021-04-28T06:37:05.8361462' / System Clock:Est. Frame Start
SWCREATE= 'SharpCap' / v4.0.7680.0, 32 bit
FRAMETYP= 'Dark ' /
BAYOFFY = 1 /
BAYOFFX = 0 /
BAYERPAT= 'GBRG ' / Try RGGB if image upside down or R/B swapped.
COLORTYP= 'GBRG ' / Try RGGB if image upside down or R/B swapped.
YBINNING= 1 /
BLKLEVEL= 15 /
XBINNING= 1 /
YPIXSZ = 3.76 / microns
XPIXSZ = 3.76 / microns
EXPTIME = 15 / seconds
ROWORDER= 'TOP-DOWN' /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
CCD-TEMP= 10 / C
INSTRUME= 'ZWO ASI533MC Pro' /
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Re: Debayering on ASI533MC

Post by admin »

Ah, I see....

the individual frames are FITS, and SharpCap saves them with a ROWORDER=TOP-DOWN field (which is a new FITS standard and implies the pattern is reversed), but the reload of those fits was ignoring the ROWORDER. I have a fix for the next 4.0 update.

cheers,

Robin
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