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

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#526 TareqPhoto

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Posted 06 January 2018 - 06:14 AM

 

^^^ Did you use an IR/UV block filter?

I used green filter.

 

Alain

 

Green filter as from LRGB filters?

 

Sorry for the question, but why green filter?

 

Thanks!



#527 easybob95

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Posted 06 January 2018 - 06:47 AM

 

 

^^^ Did you use an IR/UV block filter?

I used green filter.

 

Alain

 

Green filter as from LRGB filters?

 

Sorry for the question, but why green filter?

 

Thanks!

 

Yes, green filter from LRGB filters.

 

Green wavelength gives more details than red and IR wavelength. That's why I use this filter to get better details.

 

Alain


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#528 TareqPhoto

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Posted 06 January 2018 - 06:56 AM

 

 

 

^^^ Did you use an IR/UV block filter?

I used green filter.

 

Alain

 

Green filter as from LRGB filters?

 

Sorry for the question, but why green filter?

 

Thanks!

 

Yes, green filter from LRGB filters.

 

Green wavelength gives more details than red and IR wavelength. That's why I use this filter to get better details.

 

Alain

 

Great, that was the answer i looked for.

 

Thank you very much!

 

Tareq



#529 Jeff B

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Posted 06 January 2018 - 11:44 AM

 

 

 

 

^^^ Did you use an IR/UV block filter?

I used green filter.

 

Alain

 

Green filter as from LRGB filters?

 

Sorry for the question, but why green filter?

 

Thanks!

 

Yes, green filter from LRGB filters.

 

Green wavelength gives more details than red and IR wavelength. That's why I use this filter to get better details.

 

Alain

 

Great, that was the answer i looked for.

 

Thank you very much!

 

Tareq

 

Interesting.  Maybe I'll dig out my old 6" F10 achromat and use a green filter.



#530 easybob95

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Posted 06 January 2018 - 12:45 PM

 

 

 

 

 

^^^ Did you use an IR/UV block filter?

I used green filter.

 

Alain

 

Green filter as from LRGB filters?

 

Sorry for the question, but why green filter?

 

Thanks!

 

Yes, green filter from LRGB filters.

 

Green wavelength gives more details than red and IR wavelength. That's why I use this filter to get better details.

 

Alain

 

Great, that was the answer i looked for.

 

Thank you very much!

 

Tareq

 

Interesting.  Maybe I'll dig out my old 6" F10 achromat and use a green filter.

 

Yes ! You could have good results.

 

Alain



#531 TareqPhoto

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Posted 06 January 2018 - 08:18 PM

And with that i will try to use my ST80 then and use green filter, but not sure with camera, a mono or a color one, hehehehe

 

Oh i forgot, with a color camera i already have 2 filters, one is contrast boost to kill the CA and the other is Neoy or Skyglow&moon one which it says it already has IR cut, so i am set in all conditions.

 

I remember once i used my Ha filter by mistake on the moon, and i was wondering why i ca't get fast shutter or exposure then, later i found out that the filter was on, but i didn't shoot the moon again after that, easy target that i will focus on later, i am mainly focusing on DSO and planets, but i think i have to give the moon another chances and see.

 

So, this is a general question here, if the seeing is good, and you take video of the moon for stacking, how long the video is enough? i am using only Sharpcap, do you use the number of frames or video option? do you bin? do you use ROI if the moon is small in the view? do you track the moon? i mean if you have just one of those small cameras and simple scope and good mount, what is the best way to shoot the moon before you use it for stacking? stacking and processing isn't a problem once we have something to start with. Also does the mosaic bring better details than non mosaic image? Sorry many questions



#532 easybob95

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Posted 07 January 2018 - 08:22 AM

Well, when there is very low / low turbulence, the good filter is the green one.

 

With imx178mono sensor, my capture rate is about 40 fps at full resolution  and i capture about 2000-2500 frames per video. Most of time, i keep the 300-350 best frames with AS3. I use my C9.25 at F/D 10 or a bit more and my TS115 refractor at F/D 7 or 12.

 

When the turbulence is high :

Most of time, i use red filter and my C9.25 is at F/D 6.3 (F/D 10 is too high) and my TS115 at F/D 7.

 

I can use green filter when the turbulence is high but it depends of the turbulence (low or high frequency turbulence). In that case, i select lower resolution in order to increase the frame rate and to get more frames.

 

For the Christmas Moon, the turbulence was a bit high but it was low frequency turbulence. I decided to use green filter to try to get good details but i also decided to reduce the resolution of the sensor (ROI) to increase frame rate. So i had to make a 3 pictures mosaic (instead of a 2 pictures).

 

It's quite hard to get the good setup. Need to make some tries.

 

Alain


Edited by easybob95, 07 January 2018 - 08:22 AM.

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#533 TareqPhoto

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Posted 07 January 2018 - 09:12 AM

Well, when there is very low / low turbulence, the good filter is the green one.

 

With imx178mono sensor, my capture rate is about 40 fps at full resolution  and i capture about 2000-2500 frames per video. Most of time, i keep the 300-350 best frames with AS3. I use my C9.25 at F/D 10 or a bit more and my TS115 refractor at F/D 7 or 12.

 

When the turbulence is high :

Most of time, i use red filter and my C9.25 is at F/D 6.3 (F/D 10 is too high) and my TS115 at F/D 7.

 

I can use green filter when the turbulence is high but it depends of the turbulence (low or high frequency turbulence). In that case, i select lower resolution in order to increase the frame rate and to get more frames.

 

For the Christmas Moon, the turbulence was a bit high but it was low frequency turbulence. I decided to use green filter to try to get good details but i also decided to reduce the resolution of the sensor (ROI) to increase frame rate. So i had to make a 3 pictures mosaic (instead of a 2 pictures).

 

It's quite hard to get the good setup. Need to make some tries.

 

Alain

Cool, thank you very much!



#534 bobzeq25

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Posted 07 January 2018 - 11:45 AM

Tycho and vicinity.  Actually my first semi serious lunar image, with a new camera (purchased mostly for OAG).  Perhaps it's interesting that I used PixInsight for processing (Autostakkert for stacking).  Simply because it's what I know.  I think it did a very nice job on the debris fields.

 

Teleskop Services 130mm F7 with Baader 2.5X barlow.  QHY5III 174 camera.  Best 250 of 1000.

 

Fullsize here, I decided I like this orientation better.  Funny thing, it changes the file size.

 

https://www.astrobin.com/328429/

 

 

00_50_33_g4_ap713 V2.jpg


Edited by bobzeq25, 07 January 2018 - 12:01 PM.

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#535 George Methvin

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Posted 11 January 2018 - 10:40 AM

Celestron 150mm Omni f/5 Reflector with 2x barlow  Neximage color burst imager, moon was low and seeing was poor.

Attached Thumbnails

  • Moon110013 18-01-09 04-06-59_1024x768.jpg
  • Moon60006 18-01-09 03-59-36_1280x960.jpg

Edited by George Methvin, 11 January 2018 - 10:42 AM.

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#536 james7ca

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Posted 12 January 2018 - 05:27 PM

Waning crescent moon from the morning of January 12, 2018 taken using a Tele Vue NP127is with 0.8X reducer (e.f.l. 528mm) and a ZWO ASI178MM camera with a 610nm Baader Longpass filter. Image processing with AutoStakkert! (best 20% of 2000 frames), wavelet sharpening in Registax, and final tweaks in Photoshop CC2017. Reduced in size from the camera's full-frame 6M pixels to 1200 x 800 to conform to the CN posting guidelines.

Attached Thumbnails

  • Waning Crescent Moon (Small).jpg

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#537 aeroman4907

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Posted 12 January 2018 - 05:39 PM

Nice capture James.  Seeing was poor here in Castle Rock (south of Denver), so I didn't bother trying to take any pics.  I bet the full size TIFF looks great!



#538 james7ca

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Posted 12 January 2018 - 05:52 PM

Nice capture James.  Seeing was poor here in Castle Rock (south of Denver), so I didn't bother trying to take any pics.  I bet the full size TIFF looks great!

Thanks. I think this reproduction ended up a little oversharpened after the size reduction. It was a fairly quick processing job since I took this at the end of a session on DSOs and I didn't expect much (and the seeing based upon the liveview didn't look that great even at this short of a focal length -- I was using a 0.8X reducer).


Edited by james7ca, 12 January 2018 - 05:53 PM.

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#539 Jeff B

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Posted 13 January 2018 - 10:00 AM

Very nice indeed James.  



#540 james7ca

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Posted 15 January 2018 - 06:14 PM

Jeff, thanks.



#541 Tyson M

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Posted 16 January 2018 - 08:52 PM

Tycho and vicinity.  Actually my first semi serious lunar image, with a new camera (purchased mostly for OAG).  Perhaps it's interesting that I used PixInsight for processing (Autostakkert for stacking).  Simply because it's what I know.  I think it did a very nice job on the debris fields.

 

Teleskop Services 130mm F7 with Baader 2.5X barlow.  QHY5III 174 camera.  Best 250 of 1000.

 

Fullsize here, I decided I like this orientation better.  Funny thing, it changes the file size.

 

https://www.astrobin.com/328429/

 

 

attachicon.gif00_50_33_g4_ap713 V2.jpg

Very nice!!!!



#542 james7ca

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Posted 23 January 2018 - 01:09 AM

Waxing crescent moon from the evening of January 22, 2018 taken using a Tele Vue NP127is with 0.8X reducer (e.f.l. 528mm) and a ZWO ASI178MM camera with a 610nm Baader Longpass filter. Image processing with AutoStakkert! (best 20% of 3000 frames), wavelet sharpening in Registax, and final tweaks in Photoshop CC2017. Reduced in size from the camera's full-frame 6M pixels to 1200 x 723 to conform to the CN posting guidelines.

 

If you look closely you can just make out the 4.1km Armstrong crater which is near to the Apollo 11 landing site. On the full-size original it was also possible to detect the craters Aldrin and Collins (3.8 and 2.8km respectively) which were named in honor of the two other Apollo 11 crew members (Buzz Aldrin and Michael Collins).

Attached Thumbnails

  • Crescent Moon with NP127is and ZSI178MM (Small).jpg

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#543 James Ball

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Posted 23 January 2018 - 11:15 PM

January 22 2018, ETX90RA ZWO ASI120MC-S

 

First time with the new camera I got for Christmas.  Sky was clear but the wind was terrible, a few times I though the whole moon would jump out of the field of view, but it was the first night it wasn't cloudy, snowing, or in the single digits temperature.

 

AS Processed luna1
 
 

 


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#544 MarkGregory

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Posted 24 January 2018 - 02:27 AM

Hello,

 

i am back here, with my new 115mm refractor and i will try to make good work with it.

 

So, my very first picture of the Moon, using my TS Photoline 115mm and an ASI178MC camera.

 

The normal colour version :

 

gallery_228659_7960_516873.jpg

 

 

 

And the enhanced colours version :

 

gallery_228659_7960_462673.jpg

 

 

 

Clear sky

 

Alain

Excellent job processing the images. Mark


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#545 calypsob

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Posted 24 January 2018 - 11:59 AM

Here is a small ROI stack from my neighbors el cheapo 130mm bird jones Using just a red filter and maybe 200 frames via the asi120mm. 

 

 

moon.jpg


Edited by calypsob, 24 January 2018 - 11:59 AM.

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#546 GregJ

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Posted 25 January 2018 - 12:27 PM

I just bought a 2nd hand Celestron 114mm f8 Newtonian (£20 or about $30) and took a few images of the Moon just. Nice tube really!

 

 

 

 

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  • moon250118a.jpg

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#547 sink45ny

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Posted 27 January 2018 - 08:10 AM

moon01262018

Full res - https://www.astrobin.../full/331059/0/


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#548 gvk

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Posted 27 January 2018 - 11:07 AM

Here is a shot showing the SE region of the first quarter moon taken January 24th. I took this shot, probably just a few hours before the excellent photo that james7ca posted in this thread.https://www.cloudyni...74mm/?p=8361749

 

Moon20180124-X2.jpg

 

 

Since Ptolemeus and friends were just barely illuminated, my photo is centered a bit farther to the east, featuring Theophilus, ... I used an ASI178MM on my 120 mm f/7 SW refractor. The much shorter FL refractor gives increased FOV, even with a smaller sensor and crop. Unfortunately, seeing was mostly poor, so I ended up only stacking very few of several thousand frames. Photo was scaled to fit here from the original 0.6 arcsec/px to 0.75. Little, if any, detail was lost in scaling. This is the first lunar photo I have taken using this camera, so I am still working on details of filters, processing, etc. However the results so far are encouraging.

 

Gerry


Edited by gvk, 27 January 2018 - 11:11 AM.

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#549 Jeff B

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Posted 27 January 2018 - 01:05 PM

VERY nice Gerry.



#550 GregJ

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Posted 29 January 2018 - 03:09 PM

Skymax 127mm Mak just - prime focus :

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  • m290118a.jpg

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