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BlueGrass
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ST8300C imaging / processing new
      #3641758 - 02/22/10 11:01 PM

Well I finally got a chance to get out with my AT106LE and ST8300C last night. Because I spent a lot of time testing and checking the setup for balance and tracking, I didn't capture many images. I did capture 6 images with CCDSoft of the HH region, but don't understand how these images can be converted to color and then stacked for processing. The version of CCDSoft that shipped with the camera does not directly support OSC cameras, offering only to extract and then combine the channels of each image to convert them to color. CCDOps does permit a direct conversion of the images, but only one at a time and then only offers to save the result as a TIF file. I know this camera is very new and hasn't been out in the hands of users long but was hoping to get some tips on how to process and stack these images. I'm probably just not thinking the sequence through properly. There are a fair number of settings that can be set for each image during capture and maybe I've missed something. Thanks in advance!

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Jeff OM
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Re: ST8300C imaging / processing new [Re: BlueGrass]
      #3641786 - 02/22/10 11:21 PM

Hi George,

I used to own a ST-2000XCM (one shot color version) and went through exactly the same thing you are going through now. Handling, the one shot color data with the SBIG supplied software is somewhat tedious. My suggestion - get CCDstack! You will not regret it, I haven't.

cheers,

Jeff


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BlueGrass
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Re: ST8300C imaging / processing new [Re: Jeff OM]
      #3641811 - 02/22/10 11:40 PM

Jeff, thanks for the tip. You're right about the tedium in the image conversion / processing. I'll take a look at CCDStack. Also, in the Stark Labs forum on Yahoo, Craig talks about using Nebulosity to acquire and process images from the 8300C and apparently it's possible, but you have to manually override the color reconstruction so I'll try that next time since I already have a copy of Nebulosity. The 8300C reports itself as an ST-402 class camera and current software assumes it's mono only. He also said he's in contact with SBIG about this so hopefully, he'll have an update in a future release. I like using Nebulosity for imaging with my Canon, it does a great job capturing and processing and it would be ideal if it also could process images from the 8300C in OSC mode.

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Astronomy.FM
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Re: ST8300C imaging / processing new [Re: BlueGrass]
      #3641881 - 02/23/10 12:36 AM

I use a ST-2000XCM and use MaximDL to convert to color. I have not tired CCDStack yet, I need to take a look at it.

I was reading on the SBIG site that you can take mono images with 8300C if you bin 2 or 3

Quote:

The ST-8300C single-shot-color version of this camera can be used in high resolution mode (only) for color images, or binned 2x2 or 3x3 for monochrome imaging.



so I wonder if you could put CFW on it and use it for both color and mono. use a blank/clear filter for color and then bin 2 and do Ha, SII, OIII all with just one CCD

Edited by Astronomy.FM (02/23/10 12:54 AM)


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BlueGrass
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Re: ST8300C imaging / processing new [Re: Astronomy.FM]
      #3641921 - 02/23/10 01:20 AM

Sounds reasonable to do both mono (binned) and OSC (unbinned)... although if I understand it correctly, you'll lose resolution but gain sensitivity. Just tried CCDStack on my 6 images. It allows you to select your Bayer pattern for color conversion and seems to work well. Need to do more testing of the stacking though. If it does all the conversion, stacking and processing, it looks like a solid solution.

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justabob
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Re: ST8300C imaging / processing new [Re: BlueGrass]
      #3641942 - 02/23/10 01:41 AM

George I am using Maxim dl for capture and guiding and maybe for stacking and calibration. But in the past I have always used dss with good results.

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JerryWise
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Re: ST8300C imaging / processing new [Re: justabob]
      #3642185 - 02/23/10 08:04 AM

Whew. I was embarrassed to post on this thinking it was just my setup. I've been fighting it for two weeks now. I emailed SBIG and they said set the camera up as an ST 402 and software vendors were likely to come out with upgrades soon. I've tried ImagePlus, Nebulosity and the CCDSoft version with the camera. Nothing "seamless" yet for multiple image acquisition and Bayer Matrix conversion. Sure hope you folks find a magic bullet and report back here.

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hewholooks
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Re: ST8300C imaging / processing new [Re: JerryWise]
      #3642326 - 02/23/10 09:38 AM

Deepskystacker is free and it is what I have always used with good success.

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JerryWise
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Re: ST8300C imaging / processing new [Re: hewholooks]
      #3642390 - 02/23/10 10:10 AM

I might be over complicating things or spoiled by the DSLR world but there seems to be a number of Bayer Matrix "DeBayering" filter/algorithms that are chip specific. The only setting I've found so far that works well is the "Color Process" in CCDops. I'd like to have an application that you could specify time, temperature, number of exposures and automatic color processing with images saved to FIT or TIF files for the 8300c. We could then stack and process with software we are familiar with.

I guess the question still vague in my mind is would all 8300c chips use the same Bayer Matrix and color decoding algorithms?


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lawrie
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Re: ST8300C imaging / processing new [Re: JerryWise]
      #3643417 - 02/23/10 05:38 PM

What do the guys with the Q8 use?

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BlueGrass
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Re: ST8300C imaging / processing new [Re: lawrie]
      #3643563 - 02/23/10 06:47 PM

Not sure but I don't think DSS will convert the FIT files to color before / after stacking so while it will stack the images, you're still not getting the conversion done. The CCDStack testing I did last night worked. It allows you to convert all images opened in the stack to color and then do basic processing on the result. That's what I expected from CCDSoft. An all-in-one stacker and conversion utility. We all use our own post-processing app, i.e. Photoshop, Gimp, etc. so that is not the problem. It's getting from the acquired images to a stacked, color result that's the problem.

Jerry, take a look at CCDStack. Like PemPro, you can run it for 30 days as a trial. I think you'll find it's what you're looking for. If you do give it a try, please post back with your results... Thanks....

Edited by BlueGrass (02/23/10 07:12 PM)


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JerryWise
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Re: ST8300C imaging / processing new [Re: BlueGrass]
      #3643975 - 02/23/10 10:34 PM

Will do George. Thanks.

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mega256
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Re: ST8300C imaging / processing new [Re: JerryWise]
      #3644851 - 02/24/10 11:48 AM Attachment (62 downloads)

Im in the boat the max iv been able to stack is 3 frames with CCDops..I understand that Craig (Nebulosity)is Talking to Sbig about this..This is the best color I could do so far..

Edited by mega256 (02/24/10 11:52 AM)


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hewholooks
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Re: ST8300C imaging / processing new [Re: mega256]
      #3645041 - 02/24/10 01:35 PM

DSS works with the FITS files that come directly from my ST4K, no problem.

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JerryWise
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Re: ST8300C imaging / processing new [Re: hewholooks]
      #3645519 - 02/24/10 06:30 PM Attachment (76 downloads)

CCDops is what I used on this too. 5 images at 5 minutes. The camera has gobs of potential. Just need to get Nebulosity working with it and I'll be happy. I'd like to use Nebulosity with Craig's integration with PHP autoguiding.

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mega256
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Re: ST8300C imaging / processing new [Re: JerryWise]
      #3645990 - 02/24/10 11:10 PM

Wow yours looks alot better than mine..How did u combine
5 pics in ccdops?I need to do that,
I think you have to do it b4 color, is it under utilities?


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JerryWise
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Re: ST8300C imaging / processing new [Re: mega256]
      #3646345 - 02/25/10 06:54 AM

What I did was color process each image in CCDops and save in a Tiff file. Then used Nebulosity to combine them. Then used Paint Shop Pro to stretch the images. The exposure was made through a TOA 150. I think these cameras are going to really shake up the market. The resolution is there.

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mega256
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Re: ST8300C imaging / processing new [Re: JerryWise]
      #3646421 - 02/25/10 08:16 AM Attachment (50 downloads)

Thanks Jerry,one more, did you -dark in CCDops b4 color conversion then ddp or rgb ? For each file ,Then move to nebulosity for combine..The camera has LOTs of color,I pushed this...but the data is there.The camera is going to do well.
thanks
Bob

Edited by mega256 (02/25/10 09:41 AM)


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JerryWise
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Re: ST8300C imaging / processing new [Re: mega256]
      #3646688 - 02/25/10 11:21 AM

Yes Bob. I had CCDops do the dark subtraction. Interesting how much detail is there in the raw image before the color processing. I've been doing some reading and on many images I don't think we are going to lose that much resolution over the mono version when used on many OTAs.

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justabob
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Re: ST8300C imaging / processing [Re: JerryWise]
      #3646738 - 02/25/10 11:50 AM

Great shot Jerry! No first light here yet. But I have made a dark library and know how to capture guide and dither with maxim.

As Hunter mentioned dss should work fine with the raw fits files these cameras produce.


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