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cedric-r / ASCOM.HomeMade.SBIGCamera

Driver ASCOM for SBIG cameras.
GNU General Public License v3.0
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Thanks, works great on ASCOM 6.6 SP1 but not on version 7 #13

Open cduston44 opened 1 month ago

cduston44 commented 1 month ago

Extremely happy to see this, my ST-402 works great on ASCOM 6.6 SP1 (It's attached to a DSS-7 spectrometer, and I'm using Demetra to connect via ASCOM. I can't control the slit, but I can control the camera perfectly). However, on ASCOM 7 I get an error from Demetra when I connect. It could be a Demetra problem, but it can use the Atik ASCOM 7 drivers fine, so I'm guessing it's just an issue with how the SBIG drivers are being installed.

I'd love to see a fix, and I could even try a fix myself if you could maybe take a guess at the problem ("connection point not found" error), but I get this is a passion project. Thanks again!

cedric-r commented 1 month ago

Hi there.

I don't use ascom 7 yet. I don't upgrade that quickly and I suspect the sdks aren't or yet. But I'll have a look.

klingonio commented 1 month ago

Hi all,

Basis: Windows 10 (current) ASCOM 6.7 HomeMade.SBIG.Camera (Nov 2023) Cam SBIG STF-8300M

Used with astro-physics PointingModell Tool (APMM V 1.9.7.17)

Only works without binning!

If binning is set, an incorrect value is written to the FITS header.

Example would be correct: XBINNING= 3 / X axis binning factor YBINNING= 3 / Y axis binning factor XPIXSZ = 16.2 / [um] Pixel X axis size YPIXSZ = 16.2 / [um] Pixel Y axis size

but HomeMade.SBIG.Camera sets

FOCALLEN= 1.87 / Telescope focal length (meters) XBINNING= 3 / YBINNING= 3 / APPMVER = 'v1.9.7.17' / APPM Version YPIXSZ = 48.6 / Pixel Y dimension including binning XPIXSZ = 48.6 / Pixel X dimension including binning

Basis: Windows 10 (current) ASCOM 7.1 HomeMade.SBIG.Camera (Nov 2023) Cam SBIG STF-8300M

Used with astro-physics PointingModel Tool (APMM V 1.9.7.25)

This constellation is unusable because not only the Binnig values in the FITS header are wrong but also the focal length has utopian values.

FOCALLEN= 5.8 / Telescope focal length (meters)

and I have no idea where this value comes from.

So I restored the status from the first test from a backup and can at least use it to create a pointing model.

In addition, the download times of the images from the camera are significantly longer than with the native SBIG drivers.

Comparison:

SBIG driver, binning=3 download time 4 seconds HomeMade.SBIG.Camera, Binning=3 Download time 11 seconds

This applies to both test constellations