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PostPosted: Wed Oct 25, 2017 4:19 pm 
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Wow, much nicer tendrils in the nebulae with that second image. I don't understand what you mean by dropping two frames. Are you saying you took more images last night, but two of them didn't come out? And you added the good frames to the old batch to increase dynamic range on M45? Just guessing here, because you are at a level of AP that is well beyond my experience.

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PostPosted: Wed Oct 25, 2017 8:15 pm 
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molecule
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Exactly, I discarded two frames because of trailing. I then stacked the image using light frames from both the 22nd and 25th.

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PostPosted: Thu Oct 26, 2017 2:37 am 
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Nice. That must explain why the contrast is improved. I guess I'm not a dolt all of the time. :cheesygrin: I've certainly read about the concepts of stacking with AP, several years ago, but definitely lack any real experience. I've done a few single frame long exposure shots...that's pretty much it.

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PostPosted: Sun Apr 15, 2018 6:42 pm 
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molecule
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Image

I donated my 152mm Lunt to our observatory back in December, it is now our primary instrument for the photography program. Since I just got home from Basic training I picked up all my gear from storage and will hopefully get some images in a few weeks, but the Big Damn Telescope project (14" F/4.6 on CGX) needs to be finished first.

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PostPosted: Mon Apr 16, 2018 1:59 pm 
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Beautiful addition to that beast. Nice of you to donate such a scope!

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PostPosted: Tue Apr 17, 2018 6:29 pm 
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Beautiful looking scope and observatory! What a great donation. :cool:

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PostPosted: Sat Apr 28, 2018 10:10 pm 
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molecule
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Photos from the Big Damn Telescope @F/4.6, ZWO ASI224 camera. Best 5% of 2000 frames.

ImageMoon_215159_g4_ap66 by Kris Flory, on Flickr

ImageMoon_215754_g4_ap69 by Kris Flory, on Flickr

ImageMoon_230935_g4_ap68 by Kris Flory, on Flickr

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PostPosted: Sat May 05, 2018 1:05 pm 
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BDT images getting better but still soft.

Imagerealcrappyfastthingsoicangotobed by Kris Flory, on Flickr

ImagemoonPano5may2018 by Kris Flory, on Flickr

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PostPosted: Fri Jun 22, 2018 11:54 pm 
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Those are a lot better images than I’ve ever taken!

Nice work. Really nice banding detail on Jupiter.

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Homebuilt 16" Truss Dob
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SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
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Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Thu Sep 20, 2018 8:04 pm 
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molecule
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Something I'm currently messing with. I've changed up most of my imaging gear, now mostly using Canon lenses and a 6" Astro Tech RC. Current Camera is a ZWO ASI1600MM-P, 36mm 7 slot electronic filter wheel, L-RGB filters, 7nm SII, H-a, OIII.

This was shot from my driveway in Wichita KS, 200/50 gain/offset, binned 2x2 at -15C. 60 SII frames, 90 H-a frames, 60 OIII frames all at 120 seconds each. H-a used for luminance. APT for capture, PixInsight for calibration and stacking, Photoshop CS6 for post processing. I think this is the 4th or 5th mono to RGB image I have done so far so I'm still getting the hang of it.

Image2018Sep19NorthAmericanSHO by Kris Flory, on Flickr

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PostPosted: Mon Sep 24, 2018 5:15 pm 
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Wow that’s pretty. Love the color and subtle textures.

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Homebuilt 16" Truss Dob
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SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
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Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Fri Nov 16, 2018 2:25 pm 
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molecule
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I've been doing a lot of 7nm hydrogen-alpha stuff from the driveway at home, but since the LP is frighteningly bad I had to drive 40 miles to our observatory to get the data for this.

Heart And Soul Nebula, SHO Hubble Palette

Canon 200mm F2.8L USM
ZWO ASI1600MM-Pro
ZWO 7nm narrowband filters
ZWO ASI120MM-S autoguider
Orion 50mm guidescope
Celestron CGX

L-RGB Channels:

L= 84x 300s 7nm H-a 200/50 1x1 -20C 40 darks, 30 flats
R=12x 600s 7nm SII 200/50 1x1 -20C 24 darks 30 flats
G= 160x 300s 7nm Ha 200/50 1x1 -20C 40 darks, 30 flats
B=12x 600s 7nm OIII 200/50 1x1 -20C 24 darks, 30 flats

APT, PHD2, DSS, PI, CS6E

Image16Nov2018HearSoulHLVGsho by Kris Flory, on Flickr

Image_16Nov2018HearSoulHLVGsho_Annotated by Kris Flory, on Flickr

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PostPosted: Fri Nov 16, 2018 2:39 pm 
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It’s interesting that you’re able to eliminate the effects of the light pollution in that one you took from your driveway. With long exposures, I’ve seen photos where the sky glow starts showing up. Do you have a technique that helps with that or is just using the right filter?

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Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
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Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Fri Nov 16, 2018 4:53 pm 
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molecule
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Erik wrote:
It’s interesting that you’re able to eliminate the effects of the light pollution in that one you took from your driveway. With long exposures, I’ve seen photos where the sky glow starts showing up. Do you have a technique that helps with that or is just using the right filter?


In most cases I am lucky, the LP is so overpowering that it does not show a gradient across the image but is one solid color so it gets used as the black point. With this one I was at our observatory so the gradient was noticeable. You can use Pix Insight's Dynamic Background Extraction, Gradient eXterminator in Photoshop, Photoshop has a gradient tool which is very complicated and does the same thing as Gradient eXterminator, or just play with masks, the lasso tool, and selective color like I did on this one. I prefer to do the changes in small repetitive iterations rather than one action that can sometimes cause more issues later on in the process and require extensive backtracking.

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Last edited by Turd on Fri Nov 16, 2018 4:55 pm, edited 1 time in total.

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PostPosted: Fri Nov 16, 2018 4:55 pm 
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molecule
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HOO version using synthetic green channel.

Image16Nov2018HeartSoulsynthetic Green by Kris Flory, on Flickr

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PostPosted: Sun Nov 18, 2018 11:34 pm 
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Turd wrote:
Erik wrote:
It’s interesting that you’re able to eliminate the effects of the light pollution in that one you took from your driveway. With long exposures, I’ve seen photos where the sky glow starts showing up. Do you have a technique that helps with that or is just using the right filter?


In most cases I am lucky, the LP is so overpowering that it does not show a gradient across the image but is one solid color so it gets used as the black point. With this one I was at our observatory so the gradient was noticeable. You can use Pix Insight's Dynamic Background Extraction, Gradient eXterminator in Photoshop, Photoshop has a gradient tool which is very complicated and does the same thing as Gradient eXterminator, or just play with masks, the lasso tool, and selective color like I did on this one. I prefer to do the changes in small repetitive iterations rather than one action that can sometimes cause more issues later on in the process and require extensive backtracking.



Interesting, thanks. I didn’t realize that could happen like that with the LP. At least it’s cooperative! :grin:

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Tue Nov 20, 2018 8:21 am 
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molecule
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It also helps that I shoot only in H-a from home now, the only time I have managed to get useful data in any other wavelength was for North America, and I'm going to reshoot that from LAPO next year.

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PostPosted: Thu Nov 22, 2018 10:30 pm 
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Cool, looking forward to seeing the reshoot! :cool:

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Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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