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Small bore challenge: the Moon w/ 6" or less

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#601 mwastrophotography

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Posted 02 May 2018 - 08:30 AM

March Blue Moon

30/03/2018 Bialystok, Poland

Full Moon / 99.2% 

Moon Distance at around 9PM: ~375792 km

Moon Altitude: 25.75°

Canon700D, Sky-Watcher 150/750 EQ3-2, BarlowX2


March Blue Moon

 

27/04/2018 Bialystok, Poland

Waxing Gibbous moon with 95% of illumination

This is stack of 150 frames taken with Canon700D, SW150/750, BarlowX2

 

Waxing Gibbous

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#602 Wouter D'hoye

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Posted 02 May 2018 - 12:38 PM

Hi,

 

first quarter moon from April 23th; Used a link as it is a pretty big picture;

 

6 panel mosaic made with FLT 132 @ F/22 with QHY 163M and red filter.

 

https://www.astrobin...343825/?nc=user

 

Enjoy.

 

Wouter.


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#603 Gvs

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Posted 02 May 2018 - 11:17 PM

Well, took a bit more time with processing and slightly improved the final result. Fixed chromatic aberration, and balanced the curves while stretching them slightly.

 

Any advice on how to improve further is welcomed.

 

 

 

Attached Thumbnails

  • Full Moon 20180428 Color2.jpg


#604 Tom Glenn

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Posted 03 May 2018 - 12:12 AM

 

Any advice on how to improve further is welcomed.

Your initial post suffered from over processing.  I know you wanted to highlight all the features, but I think you can still highlight features while keeping a slightly more natural appearance.  Your latest version, above, does a much better job I think.  My main recommendation to improve the result is to capture more frames.  You said you stacked 36 frames.  This is a very small number, and this is the main limiting factor that is not allowing you to sharpen very much without introducing severe processing artifacts.  How many frames did you capture and what was your frame rate?  You can generally stack many more frames than you think, not just the best ones.  With your camera, you should easily be able to get several thousand frames within a short capture.  The full frame rate for your camera should be 170 fps.  Is that what you were getting?  If so, a 30 second capture should give you 5100 frames.  Out of these, I would start by stacking 500 and then processing that result.  If your frame rate was slower, I would still recommend recording long enough to get 5000 frames, and then stack at least 500 to 1000 and test the result.  Even if seeing is poor, you will be surprised at what stacking many more frames will do for your result.  



#605 Gvs

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Posted 03 May 2018 - 06:06 PM

Thank you Tom.  Greatly appreciate your advice.  Here is the result.

 

Settings on a Williams Optics ZenithStar 80mm II ED through an ASI290MC at a Gain of 61, 3ms subs, 16bitRaw for 30 seconds video

 

We ran two sets, as the entire Moon disk did not fit inside the tiny ASI290MC sensor.  Each one 30 seconds.

 

The avi out of PIPP had 730+ frames.  Out of these we those that were at least 75% quality in AutoStakkert 3.0.   Wavelets processing was used in Registax 6 (this introduced the artifacts on the previous image that ruined the color).   Then I stitched the two sets in Gimp 2.9.6 and used it to enhance the color.

 

Regardless, if we assume that the Full Moon was around 31 arc-min. Dawes Limit for the scope was 1.5 arc-sec.  The resolution for the camera for 545mm focal length would 1.1 arc-sec.  If you review the image, that is exactly the resolution on this image (1.1 arc-sec -->  1 arc sec= 1 pixel ~ 1.2 miles).

 

Now the reason the color was pushed, was to enhance chemical composition.  Blue hues highlight titanium rich areas, on the other hand yellow-orange to brown colors show regions poor in titanium and iron.  This is not a calibrated image.  Ejecta streaks were highlight to see if their compositions could be determined, something for further study.

 

Next time, I'll ensure that there are at least 200 images.

Attached Thumbnails

  • Full Moon 20180428 Color3.jpg

Edited by Gvs, 03 May 2018 - 07:50 PM.


#606 Tom Glenn

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Posted 03 May 2018 - 06:54 PM

That's looking quite nice.  One question, however, is what are you using PIPP for in the workflow?  You mentioned that you are capturing as a .ser file, but then it sounds like you used PIPP to convert it to .avi for Autostakkert.  I would avoid this, as it adds an unnecessary conversion step.  Autostakkert does just fine aligning and stacking 16 bit .ser files.  Also, since you are using a color camera the image needs to be debayered, but do not let PIPP debayer the frames.  By default PIPP is set to debayer the raw data, so unless you uncheck the box that is what it will do.  PIPP does not do as good of a job debayering as Autostakkert, and in fact the algorithm that Autostakkert uses to debayer results in no real loss of resolution compared to mono cameras.  In any event, I would just skip PIPP entirely and load the .ser files directly into Autostakkert.  Your image does look nice, though.  Good job!



#607 Gvs

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Posted 03 May 2018 - 07:41 PM

Thanks for all the advice.

I generally use PIPP to enhance image stability, ensure ROI, and compensate for image color variations while equalizing dynamic range across frames. Works great when imaging planets. PIPP also allows you to merge multiple ser files and create an AVI at a desired frame rate, dropping unusable frames.

You are correct otherwise in terms of debayer performance and options.

#608 Mark54

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Posted 05 May 2018 - 02:47 PM

I just discovered this thread. I am not sure if small bore includes what I am using but here is one image. 

Montes Apenninus. Samsung Note 4.

Taken 4/27/18 from central Illinois.

 

If this is inappropriate as to the intention of this thread please remove. I do not intend to offend an error. Thank you.

 

The earlier image, Montes Apenninus may not have qualified for small bore. Theopholis capture fits here. Sorry for this mess up..:-)

 

This one is from the same smartphone but for sure this was taken with the ES127FCD100. I tried to find from the SW100ED, but this one is better from the 127.

 

 

Attached Thumbnails

  • Theo Labels 20180429_170808.jpg

Edited by Mark54, 06 May 2018 - 12:55 PM.

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#609 Stargazer3236

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Posted 06 May 2018 - 10:25 AM

Good pic! How big was your scope?



#610 Mark54

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Posted 06 May 2018 - 12:46 PM

Good pic! How big was your scope?

Oops! I was thinking my 127 Mak, but...the evening I was out I had a 127 Mak SLT set up and an 8 inch SCT. Now that you ask...I was going back and forth between them. I may have actually grabbed this on the 8 inch SCT...which disqualifies this image in this thread. I apologize. I did not intend to mislead.

If I can edit that post I will put up another which I know came from my SW100ED.



#611 Stargazer3236

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Posted 06 May 2018 - 06:48 PM

I just discovered this thread. I am not sure if small bore includes what I am using but here is one image. 

Montes Apenninus. Samsung Note 4.

Taken 4/27/18 from central Illinois.

 

If this is inappropriate as to the intention of this thread please remove. I do not intend to offend an error. Thank you.

 

The earlier image, Montes Apenninus may not have qualified for small bore. Theopholis capture fits here. Sorry for this mess up..:-)

 

This one is from the same smartphone but for sure this was taken with the ES127FCD100. I tried to find from the SW100ED, but this one is better from the 127.

 

 

attachicon.gif CN Monte_Apenninus_Closr_20180427_084107.jpg

I think you over processed this image. It looks more like a painting than a live image.



#612 Mark54

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Posted 06 May 2018 - 07:06 PM

I think you over processed this image. It looks more like a painting than a live image.

Thank you.

It actually has very little processing.

The one I have posted here is also painterly looking, but likewise has very little PP.

 

Petavius crater 

 

This is how this note4 captures images. I like the camera a lot. 

Attached Thumbnails

  • 20180428_162345.jpg

Edited by Mark54, 06 May 2018 - 07:07 PM.

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#613 Tavi F.

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Posted 09 May 2018 - 02:15 AM

A few Moon pictures from last month. All taken with a Canon 550D through a Cassegrain system of 135mm aperture, with the mirrors mounted provisionally in the telescope. Stacks are in the 200..300 frames range.

 

26967534977_b1c17408a8_o.jpg

 

41016967275_1bfa842bbe_o.jpg

 

27116584287_1a8bed2402_o.jpg

 

 


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#614 gvk

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Posted 09 May 2018 - 12:10 PM

Very fine photos. Excellent detail from a 135 mm aperture.

 

Gerry



#615 Tavi F.

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Posted 10 May 2018 - 03:21 AM

Thanks, Gerry. I can't wait for proper conditions at Jupiter.




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