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Old Scopes and Modern Imaging

ccd classic equipment imaging
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#201 TerryWood

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Posted 18 September 2017 - 11:23 PM

Here's a solar image from today using my Vernonscope Brandon 94mm, 75mm Energy Rejection Filter, Daystar Quantum SE 0.6a h-alpha filter, and ZWO ASI 174MM camera. The image looks a little bit clearer when opened. Thanks for looking!

 

V/R

 

Terry

Attached Thumbnails

  • image.jpg

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#202 TerryWood

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Posted 22 September 2017 - 11:52 AM

I wasn't even going to go out last night, but in the end decided I would. The transparency wasn't all that good and clouds were present to the east, with some high haze up above. But, it still looked doable.

 

So, I set up my TeleVue Genesis (non-sdf) on a CGEM along with my Sony A7S camera.

 

The following images were a stack of 20 frames each (25 seconds per frame) at ISO 6400. Processed in Autostakkert and Adobe Light Room. Hope to do a bit better when the weather is more cooperative and can get more frames. Images were slightly downsized and converted to jpg for processing. They will probably look at little better when you open them versus the preview screen. I wonder if the optics are pinched. A couple of bright stars have spikes.

 

North American Nebula

Veil Nebula

Lagoon and Trifid Nebulas

 

Thanks again for looking!

 

V/R

 

Terry

Attached Thumbnails

  • North American Nebula LS9597 jpg.jpg

Edited by TerryWood, 22 September 2017 - 01:51 PM.

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#203 TerryWood

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Posted 22 September 2017 - 11:53 AM

# 2 The Veil Nebula.

 

V/R

 

Terry

Attached Thumbnails

  • VEIL NEBULA 1 LS ds jpg.jpg

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#204 TerryWood

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Posted 22 September 2017 - 11:54 AM

# 3 And the Lagoon and Trifid Nebulas.

 

I'll probably make a slight adjustment to this one. Too much of a green tint in the background.

 

V/R

 

Terry

Attached Thumbnails

  • LAGOON NEBULA LS 2 DS jpg.jpg

Edited by TerryWood, 22 September 2017 - 02:50 PM.

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#205 Kasmos

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Posted 22 September 2017 - 01:38 PM

I just started following this topic. You guys are doing great stuff! 

Inspirational. waytogo.gif


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#206 TerryWood

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Posted 22 September 2017 - 01:53 PM

I just started following this topic. You guys are doing great stuff! 

Inspirational. waytogo.gif

Thanks! I find it's a lot if fun as long as I keep the setup and processing simple. If it gets too technical, I start to get frustrated. 

 

V/R

 

Terry


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#207 Bonco2

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Posted 22 September 2017 - 02:55 PM

Terry,

Great work with the Genesis. Love the wide field pics.

bill


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#208 TerryWood

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Posted 22 September 2017 - 06:31 PM

Thanks Bill! This telescope is such a pleasure to use visually and photographically. A lot of fun! 

 

V/R

 

Terry



#209 starman876

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Posted 22 September 2017 - 08:32 PM

those are very good images.


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#210 TerryWood

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Posted 22 September 2017 - 09:51 PM

Thanks, I really appreciate it! The weather is looking up tomorrow, so I'll be out there again!

 

V/R

 

Terry



#211 tim53

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Posted 23 September 2017 - 10:54 AM

How about old scopes and old imaging??

 

a17b.jpg

 

Further caption from that website:  

"Tim Parker, Los Angeles, California

Starlight Xpress HX516, binned 2x2; 8" (20 cm) f/6 Springfield Newtonian; Eyepiece projection.

The seeing started out being about an 8 when I started imaging, then it improved slightly to a 9 at around 10:00pm PDT (locally late evening on the 16th). Visually, the brightness of the morning and evening limb hazes was stunning, with the clouds over northern Syrtis extending north and west toward Arabia."

 

I later noticed that Edom Promontorium was brighter in the monochrome image than normal.  I noticed it some time after participating with the flash watching crew in the Florida Keys in 2000, led by Tom Dobbins, Don Parker, Jeff Beish and others.  I didn't have a scope with me on that trip, so Don let me borrow the excellent 6" f/8 that he made and that started him in amateur astronomy (an EXCELLENT scope).  Anyway, after perusing my images from the previous apparition, I thought I'd caught a flash in Edom.  So I sent the files to Jeff Beish for comment, and he wasn't convinced that it wasn't just noise.  I'm okay with that, because science isn't about being right about some claim.  It's about finding the truth.  And I didn't quite have a convincing argument.

 

Still, it's really interesting to ponder on those times and how difficult it was to assemble a composite image.  I didn't have a filter wheel, so I had to change cameras and refocus, and put it all together in a very short time.  I think the download speed for the serial HX516 on my Winchip homebuilt PC (from PC Club Warehouse), was something greater than 25 seconds!

 

-Tim.


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#212 DMala

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Posted 24 September 2017 - 09:58 PM

Continuing with my interest in taking pictures of stars (not planets) on low budget, using a classic telescope, my existing Sony NEX5a camera+adapter and no motorized mount....

 

This time I took my Tasco  9VR+photo tripod to my South NJ location, same place where earlier this month I took the pic of the Pleiades with the early Sans&Streiffe 60x700, post 195 in this thread.

 

Well I guess that the change from F11 to F5 and relative wider FoV made a big difference, also reflected in much higher scores in DSS. This was with 40 light frames (the three worst ones were discarded for stacking) at  0.5sec and 3200 ISO, 20 darks, 20 bias frames

 

 

I also had fun preparing a side-by-side comparison of Alcyone in the single-shot, unedited RAW file (lots of noise, chromatic aberration evident) versus the unedited DSS image (noise and CA gone) versus the edited image (some details brought out).  Comments and suggestions are welcome.

Attached Thumbnails

  • 24 Sept 2017 Pleiades Tasco 9VR NEX5a_Stacked in DSS and edited in DSS and Paintshop_Cropped_2.jpg
  • 24 Sept 2017 Pleiades Tasco 9VT NEX5a_ RAW .5sec ISO3200 Vs DSS stacked unedited Vs DSS Stacked edited Paintshop.JPG

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#213 EJN

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Posted 24 September 2017 - 10:50 PM

I imaged M45 last night with the 60mm f/11 refractor in this post earlier in this thread:

 

https://www.cloudyni...ging/?p=8084375

 

This is a stack of 59 subs totaling 10 minutes. Canon 400D, #12 yellow filter, DSS, photoshop,

ISO 200 & 400, LENR. Conditions were hazy, there is no hint of the reflection nebula even

when I stretch it to the point where sensor pattern noise becomes strong.

 

Without the yellow filter I got strong blue halos around stars, like the bottom

middle image in the post above. With the filter they were eliminated completely.

Stacking resets the white point so there is no yellow tint in the output.

 

This was my first process after stacking, there is excessive star bloat which I can probably

reduce with more work.

 

M45p1-sm.jpg


Edited by EJN, 24 September 2017 - 11:49 PM.

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#214 Bomber Bob

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Posted 25 September 2017 - 08:40 AM

I miss Jupiter!  Edmund/3B 4" F15 D-K Cassegrain / Edmund 4" F15 Refractor:

 

Edmund DKC4 - Jupiter 20170611V01AR05.jpg Edmund 4 - Jupiter (GRS) 20170131V06S01.jpg


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#215 Terra Nova

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Posted 25 September 2017 - 04:11 PM

I imaged M45 last night with the 60mm f/11 refractor in this post earlier in this thread:

 

https://www.cloudyni...ging/?p=8084375

 

This is a stack of 59 subs totaling 10 minutes. Canon 400D, #12 yellow filter, DSS, photoshop,

ISO 200 & 400, LENR. Conditions were hazy, there is no hint of the reflection nebula even

when I stretch it to the point where sensor pattern noise becomes strong.

 

Without the yellow filter I got strong blue halos around stars, like the bottom

middle image in the post above. With the filter they were eliminated completely.

Stacking resets the white point so there is no yellow tint in the output.

 

This was my first process after stacking, there is excessive star bloat which I can probably

reduce with more work.

 

attachicon.gifM45p1-sm.jpg

This is a wonderful picture! It looks like a map! I really love it!



#216 Bonco2

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Posted 27 September 2017 - 03:20 PM

The bloating does make it look like a star map in that brighter stars are depicted as bigger. Nice capture.

Bill


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#217 DMala

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Posted 27 September 2017 - 11:33 PM

First attempt at the Double-double: Tasco 9VR, with extender (barlow without the lens element) and Sony NEX5a, ISO 3200, 1/3 sec, 50 lights (stacked only if DSS score was >90), 20 darks,  20 bias.  IMO there is a hint of the notch in each pair. We will see if I can do better the next time, maybe with a longer FL classic.

Attached Thumbnails

  • Stacked edited in Paintshop.jpg

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#218 Terra Nova

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Posted 28 September 2017 - 06:31 AM

I doubt the 9VR is up to the task of splitting e1 and e2. You can do it visually with a quality optic, long focal length 60mm but I think the CA would make it impossible with the fast little 9VR. Can you do it visually with that scope? If so, I'm impressed. Currently, the axes of the two doubles are at a noticeable angle to eachother. I can't detect any elongation that indicates that spatial pattern over the blooming of each in the image. Did you try it (imaging e1 and e2) with the 3" F16 Tasco you had set up during the session?


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#219 DMala

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Posted 28 September 2017 - 07:57 AM

Hi, good comments, I also am not sure if the split would be visible with the small 9VR and decided to try to find out. At this stage I do not have an answer yet. One problem with the 9VR is that I have not been able to obtain focus on the camera with any of my Barlows, nor with eyepiece projection. Therefore I was probably below the ideal optical magnification needed to directly see the split, but I was curious to verify if processing the image could bring it up.  I will follow the idea to verify  the ability to resolve the pairs just by visual observation, but also probably play a bit more in terms of photography with ISO, exposure and focus.

 

I do not plan to use the Tasco 10TE for photography as the long focuser draw-tube would not support a camera without issues. But my 80mm Meade 320 will do so perfectly.


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#220 Bomber Bob

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Posted 30 September 2017 - 08:10 PM

Edmund 4" F15 + GSO 2.5x Barlow

 

I had to hustle to catch Saturn before it got into our Red Zone.  RAW images:  1st is with me setting the color & white balance; 2nd is the ASI120MC controlling those settings.

 

Edmund 4 - Saturn 20171001V06AS21.jpg Edmund 4 - Saturn 20171001V07AS21.jpg

 

Prime Focus - about what Saturn looked like tonight in the Edmund @ 250x.  /   Another camera-managed shot with the Barlow.

 

Edmund 4 - Saturn 20171001V02AS03.jpg Edmund 4 - Saturn 20171001V08AS21.jpg

 

 


Edited by Bomber Bob, 30 September 2017 - 09:26 PM.

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#221 highfnum

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Posted 02 October 2017 - 09:04 PM

smaller brother of bomberbob 4 inch ---edmund 3 inch f15
fc2_saveed3_2017-10-02-210332-0000.jpg
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#222 highfnum

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Posted 02 October 2017 - 09:06 PM

1 more ed3

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  • fc2_saveed3_2017-10-02-210332-0000.jpg

Edited by highfnum, 02 October 2017 - 09:07 PM.

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#223 highfnum

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Posted 02 October 2017 - 09:09 PM

fc2_saveed3_2017-10-02-210036-0000.jpg
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#224 highfnum

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Posted 03 October 2017 - 04:27 PM

it was a hard shot with samsung s5
ill try with iphone7 see if better

P dollond triplet achromat c 1790

was better visually
color is accurate
pdollond1moonc.jpg
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#225 highfnum

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Posted 03 October 2017 - 04:38 PM

jaeger 6inch f 10 crater
Capture 4_29_2015 9_45_01 PMjag6.jpg
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