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Astrophotography and Sketching >> Solar System Imaging & Processing

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evan9162
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Reged: 09/20/13

Loc: Boise, ID
Re: Small bore challenge: Jupiter w/ 6" or less new [Re: james7ca]
      #6333887 - 01/24/14 11:46 PM Attachment (34 downloads)

Started using raw video mode on my T4i, thanks to Magic Lantern.

I can extract more detail with raw movies, but the sensor noise is now more apparent. The night I took this, seeing was better than it had been before, so I went for broke and stacked a pair of 2x barlows. My theory is that increasing the image scale reduces the effect that sensor noise has on fine detail - if the optics and seeing don't break down at that magnification.

Orion 127mm Mak-Cass, TV + Orion 2x barlows, ~1300 frames at ~5000mm. PIPP->AS2->RS6->PS CS2


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PrestonE
Carpal Tunnel
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Reged: 04/29/05

Loc: San Miguel de Allende,Mexico
Re: Small bore challenge: Jupiter w/ 6" or less new [Re: evan9162]
      #6339116 - 01/27/14 04:21 PM Attachment (36 downloads)

My first Jupiter with an FS102 3x barlow extension tube and Toucam. No filters for color ;>(

Processed with AS2, Registax6 and PS DS2...

26 Jan 8:45pm CST from 6000 feet elevation in San Miguel de Allende.

Seeing 7-8/10 2000 frames best 800.

Kindly give me any and all comments.

Very Best Regards,

Preston


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proky
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Reged: 05/06/12

Re: Small bore challenge: Jupiter w/ 6" or less new [Re: BKBrown]
      #6340383 - 01/28/14 08:35 AM

Jupiter and Ganymed 25.1.2014.

NexStar 6SE, ASI120MC, 3xBarlow - 150/4500mm


Animation is here
Animation Jupiter and Ganymed


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Small bore challenge: Jupiter w/ 6" or less new [Re: Shine]
      #6341903 - 01/28/14 09:13 PM

That's a nice image Shine, lot's of good detail there (including some white ovals at the bottom). I have never done planetary imaging with my DSLR, this shot is a nice example of what can be done with the technique for those who don't have dedicated planetary cameras and want to get into this game...thanks for sharing!

Clear Skies, Brian

Edited by BKBrown (01/28/14 09:14 PM)


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: dakotavc]
      #6341905 - 01/28/14 09:16 PM

Another good one...I like the moons

Clear Skies,
Brian


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: urassner]
      #6341912 - 01/28/14 09:20 PM

Quote:

Tonight I tried out shooting with the $20 LRGB filter set from Meade I got recently. Pretty happy with the results, but still trying to finetune Gain/exposure. Shot through a Starfire 152 with ASI 120 MM, stacked in Autostakkert, wavelets in Registax and RGB merged in photoshop. Best 50% of 3000 frames for R, G & B respectively.




Hi Ulrich,

You are getting a decent image and I can see the detail in there, but the only color I see is shades of red. For whatever reason, I don't get the RGB full color look. What settings are you using on the camera? May I ask what your RGB integration process is like in PS?

Clear Skies,
Brian


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: evan9162]
      #6341919 - 01/28/14 09:23 PM

Nice shot Evan! Looks like you may be pushing it a bit hard in processing, some noise is creeping in and interfering with your cool surface detail...

Clear Skies,
Brian


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: PrestonE]
      #6341924 - 01/28/14 09:27 PM

Smartly done Preston, welcome aboard Nice detail there, the image is just a bit dark on my screen...guess it could be local to me. That is a very nice 4" scope you have there, I look forward to seeing more of your images.

Clear Skies,
Brian


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: proky]
      #6341927 - 01/28/14 09:29 PM

Another good one proky, and the animation was well worth the effort. Thanks!

Clear Skies,
Brian


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evan9162
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Loc: Boise, ID
Re: Small bore challenge: Jupiter w/ 6" or less new [Re: BKBrown]
      #6342010 - 01/28/14 10:22 PM Attachment (27 downloads)

Quote:

Nice shot Evan! Looks like you may be pushing it a bit hard in processing, some noise is creeping in and interfering with your cool surface detail...

Clear Skies,
Brian




My real intention with stacking barlows was to resize my results back down to the scale that a single 2x barlow gives. By oversampling, then resizing back down, image sensor noise can be diminished in my final result. I have compared both techniques, and the oversampled/resized version gives the same/better detail with less noise.

Here is the resized image, and a better representation of the real image detail that is captured.


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Gendo
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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: evan9162]
      #6342524 - 01/29/14 07:57 AM

I think it's a good result Evan, especially for a 5" Mak and DSLR combo.

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Andy Taylor
Twisted, but in a Good Way
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Reged: 09/24/08

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Re: Small bore challenge: Jupiter w/ 6" or less new [Re: Gendo]
      #6346507 - 01/31/14 04:07 AM Attachment (34 downloads)

Taken with my Carton 100mm F13...

Spc900NC, 3x barlow and spacer tubes.


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Mert
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Reged: 08/31/05

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Re: Small bore challenge: Jupiter w/ 6" or less [Re: PrestonE]
      #6348537 - 02/01/14 05:18 AM

Quote:

My first Jupiter with an FS102 3x barlow extension tube and Toucam. No filters for color ;>(
Processed with AS2, Registax6 and PS DS2...
26 Jan 8:45pm CST from 6000 feet elevation in San Miguel de Allende.
Seeing 7-8/10 2000 frames best 800.
Kindly give me any and all comments.
Very Best Regards,
Preston




Hi Preston, nice image!
Certainly not bad at all with a toucam, you captured a lot
of detail there!
If I'm not mistaken or my eyes play me a trick, I can
discern a little bit of "onion" ring effect in there?
Could it be that the gain was fairly low?
At what fps were you imaging?


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less [Re: evan9162]
      #6349976 - 02/01/14 08:33 PM

Quote:

Quote:

Nice shot Evan! Looks like you may be pushing it a bit hard in processing, some noise is creeping in and interfering with your cool surface detail...

Clear Skies,
Brian




My real intention with stacking barlows was to resize my results back down to the scale that a single 2x barlow gives. By oversampling, then resizing back down, image sensor noise can be diminished in my final result. I have compared both techniques, and the oversampled/resized version gives the same/better detail with less noise.

Here is the resized image, and a better representation of the real image detail that is captured.




This looks really nice Evan, much smoother and less noisy I have throttled back a lot on enlarging images because it often softens the detail up too much, particularly on small bore shots.

Clear Skies,
Brian


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BKBrown
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Re: Small bore challenge: Jupiter w/ 6" or less [Re: Andy Taylor]
      #6349983 - 02/01/14 08:36 PM

That's a pretty cool result with the SPC900 Andy, you picked up a lot of the key features there. What kind of frame rate are you shooting at?

Clear Skies,
Brian


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dakotavc
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Reged: 02/03/11

Loc: Elizabethton, Tn
Re: Small bore challenge: Jupiter w/ 6" or less [Re: BKBrown]
      #6350224 - 02/01/14 10:57 PM Attachment (15 downloads)

Another pic from my nexstar 4se and zwo asi034mc at F/26 taken at 6:51pm today. This time I captured Ganymede and its shadow. Seeing was poor due to lots of wispy clouds sneaking in. Best 30% of 3000 images stacked in AS!2, minor tweak to wavelets 1 and 2 in registax.

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azure1961p
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Reged: 01/17/09

Loc: USA
Re: Small bore challenge: Jupiter w/ 6" or less [Re: PrestonE]
      #6350392 - 02/02/14 12:53 AM Attachment (19 downloads)

Quote:

My first Jupiter with an FS102 3x barlow extension tube and Toucam. No filters for color ;>(

Processed with AS2, Registax6 and PS DS2...

26 Jan 8:45pm CST from 6000 feet elevation in San Miguel de Allende.

Seeing 7-8/10 2000 frames best 800.

Kindly give me any and all comments.

Very Best Regards,

Preston




There's actually a lot of detail that can be processed here but there is this graduated ringing effect on the limb. Here's a sharpened contrast enhanced version of your piece illustrating the point.

Terrific btw.


Pete

Edited by azure1961p (02/02/14 12:54 AM)


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PrestonE
Carpal Tunnel
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Reged: 04/29/05

Loc: San Miguel de Allende,Mexico
Re: Small bore challenge: Jupiter w/ 6" or less [Re: Mert]
      #6350994 - 02/02/14 11:14 AM

Hi Mert, As I said...first image and SO MUCH to learn.

The Toucam will only shoot 15 fps and that is what I am shooting.

Yes, I see the onion ring...that is also the first image that I have ever processed...other than one image of Mars taken over 8 years ago using the Houston Astromomy Clubs C14 and that same Toucam.

Shot 11 avi's last night and will start processing as soon as they finish downloading from the laptop.

Very Best Regards,

Preston


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Mert
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Reged: 08/31/05

Loc: Spain, Pamplona
Re: Small bore challenge: Jupiter w/ 6" or less [Re: PrestonE]
      #6351293 - 02/02/14 01:56 PM

Hi Preston,

It's already a very good result, if I remember correctly
the ToUcam is a USB1 device isn't it?
If it is like the SPC900 it will start compressing
above 10fps!
Give it a try with 10fps and have the gain high enough
to fill the histogram aprox. 70%.

Regards,


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PrestonE
Carpal Tunnel
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Reged: 04/29/05

Loc: San Miguel de Allende,Mexico
Re: Small bore challenge: Jupiter w/ 6" or less [Re: Mert]
      #6351610 - 02/02/14 04:31 PM Attachment (22 downloads)

Hi Mert,

I'll drop down to 10 fps tonight and increase the gain.

Here is the best from last night.

FS102, 2.5x barlow, 1.5 inch extension tube after the barlow, 15 fps and not idea the other settings except 1/50 second exposure.

This is a stack of 1509 from 3500 processed in RS6 and PS2

Best Regards,

Preston


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