matt_baker

How does that work? Was the camera 43MP to begin with but was binned down to 11 by ZWO?

I went from R to G to B. Only shows up on G and B

I honestly can't figure out what it could be. If it was dust then surely it would be present in the red data too? I did 40-50 lights of each filter so it's not like there's less to integrate for it not to appear

I've had a look at the uncalibrated, registered data and it's definitely there, albeit hard to spot. It's a little black trail as the exposures go on. It's a very odd thing and I was thinking the exact same because it isn't consistent throughout the image, just certain spots, and the fact that it doesn't show up at all of the red data. I'll keep having a look

Really confused as to what this is in my G and B of M31. Red is completely fine, but G and B seem to exhibit walking noise even though they were all dithered the same amount, same distance and same night. Red Green Blue I do realise that my DBE is rather scuffed on G and B but it doesn't make a difference

I was wondering that it might be a potential software issue too. I can post my guide logs if anyone wants to have a look along with the EKOS indi logs

It's still doing it unfortunately, not as often, but it sure is still there. I used a separate power supply completely to rule out it being the PSU that goes to the distribution. Albeit not a 13.8, just a 12v 5A brick. I find it odd because only in the last 2 months has it done it, before it was completely fine. In other news, I have managed to tune the backlash on my DEC nicely and I'm getting a consistent 0.6" with the HEQ5 since I've also recently serviced it

Went for round two Edit: Added TIF for more accurate representation v4.tif

Good luck again everyone. Went for the same effect as last time by having one SCNR'd and the other not because I like the look of the greens in this particular Nebula. I didn't want to completely over do the sharpening and curves either, just go for a nice, soft look but I may go back and add some more sharpening Processed in PI Non-Linear: Crop>DBE>Decon (Only Ha)>TGV>MMT>Masked Stretch Linear: Star Halo Reduction on OIII and SII>Pixelmath combine SHO>Ha as Lum in LRGB combine>Starnet>MT>Curves>LHE>Export

Definitely looks like something to do with the master bias. Potential light leak?

"Actually, I've been working on this for some time, but preferred to keep it silent until now. I already started exploring the possibility of adding optional GPU support to several critical parts of our PCL development framework a few months ago. As a starting point, a version of PCL (and hence of PixInsight) with OpenCL kernels implementing some important bottlenecks (such as inner convolution loops, statistics and linear algebra routines, etc) should be ready sometime this year. As I already have said many times, however, the amount of pending work and ongoing projects that we have ahead is huge, and right now we have more important things to do than adding GPU support. So this is not at the top of the stack, but is undoubtedly important and I am taking it into account" This is what Juan said back in April

12 seconds seems a bit long for a flat frame. What bandpass is your ha filter?

Are you able to provide the raw stacked files and I'll see if I can pinpoint the issue?

Just wondering if the master flat has been calibrated with flat darks?

Invert > SCNR > Invert > SCNR 0.8

Like it is now run SCNR, then invert it back to normal after applying

Invert the image and use SCNR I think you're suffering from tilt on the top right of your image too

Okay, gone out tonight and it's still doing it. I guess I'll have to buy a 13.8v power supply? Only thing is I want the portability and not have to lug around a big PSU

Finally got round to completing my SHO rendition of the Cygnus Wall I had a lot of problems with the mount for the last few months but that was down to my stupidity and daisy chaining extension leads, so tip of the day, don't be like me and do that I might add more Ha since I only got 2 hours but the signal is that strong nonetheless that I may not. Imaging telescope: TS Optics TS Photoline 90mm f6,6 Triplet FPL53 Apo CF Imaging camera: ZWO ASI 1600MM Pro Mount: Skywatcher HEQ5 Pro (belt mod.) Ha: 27x300" (gain: 139.00) -15C bin 1x1 SII: 35x300" (gain: 139.00) -15C bin 1x1 OIII: 45x300" (gain: 139.00) -15C bin 1x1 Integration: 8.9 hours C&C welcome Matt

I really don't want to jinx it but I think it was down to daisy chaining the extension lead Edit: I literally just jinxed it On a side note, the freq. is barely ever so I can cope with it. Of course it shouldn't happen anyway but oh well, at least I'm not throwing away a 1/3 of my frames

The only thing I can test at the moment is if me daisy chaining the extensions caused something as I've currently got the setup outside I've plugged the brick straight into the reel so now I'll wait and see

It's reel > extension lead > power brick > DCHub The only reason I don't plug directly into the reel is that it doesn't have surge protection. Obviously with a new one I could do just that

I've got a HEQ5 Pro and I'm using a RPi with astroberry. I also have a 1600MM hooked up with the cooler running at about 30%. This is all running from a DeepSkyDad DCHub2 through a 12v 10A power brick I bought from Amazon My guiding is okay at about 0.8"RMS but at random points (not periodic), either the RA or DEC will spike massively then recover quite quickly but this does mean I'm having to throw away quite a few subs which of course I don't want. The possibilities of this being an issue would be either a dodgy extension reel since it is quite old, the DCHub, the extension lead or the power brick which could be potentially causing voltage drops. I did have a dew heater but I've unplugged it since it was actually causing voltage drops when slewing and caused the mount to act sporadically. I doubt it's the mount either since I very recently serviced it myself and it still happens Any thoughts? Edit: Also to note that the extension reel is 10A not 13, could that be an issue? Edit 2: Not sure how safe it is to be doing this either but the extension reel is 30m long and I'm probably only using half of it so how much of a problem does that cause too? Matt

How did you end up fixing this?

I've couldn't decide on which one I liked better and I feel as if the extra green before applying SCNR really lets this target stand out well. Again, it's a pleasure to process this data, so thanks to FLO and IKO for releasing it and good luck to you all. I might have another try in a few days to see if there's any more I can squeeze out Matt