Dodgy SX 694 images

[DaveS]

Last night I was running trials after putting my very old SX Trius 694 on the ODK 12 for capturing some of the HCGs (0.46"/px. Yep, barking lol).

Well, I didn't get very far, due to several reasons but this may be the deal breaker.

A single 1 sec Luminance sub at -25C (Beta Geminorum used for Synch)

And this horror is an autostretched version after Bias calibration.

I've never seen anything like this from this camera, so have no idea what's going on. I just hope that I don't have a dead camera.

[DaveS]

OK, the vertical streak looks like blooming, though I'm not seeing any saturated pixels in the histogram.

Two (Very slight) positives are that my guess at the focus position was pretty close, and those diagonal shadows look to have gone.

[newbie alert]

Send starlight xpress an email with those images attached...

[DaveS]

I'm not sure. I realised after I posted that I had the CCTV camera on, pumping out a flood of IR, plus I think I have identified a power supply issue, with a slightly loose connecter which I have changed.

I ran an all-sky pointing model last night and didn't see anything untoward (Apart from moonlight noise) and did a framing check sequence on HCG 44 which likewise showed nothing unexpected.

[GalaxyGael]

That could be it. Was going to ask if you had an  IR cut filter installed (but maybe your L filter has UV/IR cuts?). Curious, are the broad more diffuse shadows likely from IR with banding from the iffy connection?

[DaveS]

Yes, quite possibly.

[DaveS]

This is a framing check I did on HCG 44. 12 x 300 subs with I know not what filter. The sequence specified Lum, the FITS header says Blue, but the Lum was in the light path when I took the train off the telescope for cleaning prior to getting keeper Flats.

The only nasty stuff I can see are dust bunnies after calibrating with a Master Bias (Recommended in the SX 694 manual)

This isn't for keeping BTW, in any case the moon was stupidly (My stupidity) close leaving a huge gradient.