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A few shots from 6/11/2019

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#1 rigel123

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Posted 12 June 2019 - 03:15 PM

Got behind. Actually did an animation but with passing clouds I decided it really wasn't worth posting! So full disk shot, Lunt LS60T DS, Atlas EQ-G, Skyris 236M, ScopeStuff .5 reducer Best 150 frames from 500. Click on image for larger view

Full-Disk-6112019.jpg


Edited by rigel123, 12 June 2019 - 04:45 PM.

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#2 rigel123

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Posted 12 June 2019 - 03:16 PM

A very faint prom and an inverted close up of the surface:

Feathery-Prom-6112019.jpg

Filament-6112019.jpg
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#3 descott12

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Posted 12 June 2019 - 03:25 PM

What scope did you use for the third image of the nice closeup? That wasn't with your Lunt 60 was it?



#4 rigel123

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Posted 12 June 2019 - 04:33 PM

What scope did you use for the third image of the nice closeup? That wasn't with your Lunt 60 was it?

Yes, that was with my Lunt 60 and a Meade 2x telenegative.  Thanks!


Edited by rigel123, 12 June 2019 - 04:37 PM.


#5 descott12

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Posted 12 June 2019 - 05:01 PM

Yes, that was with my Lunt 60 and a Meade 2x telenegative.  Thanks!

That is fantastic. I thought you would need more aperture for that level of detail.



#6 jwestervelt

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Posted 12 June 2019 - 05:06 PM

Yeah, it is pretty impressive.  I haven't tried a barlow or anything because, well... i don't have one.  :(  I have a really nice Televue 2X Powermate with a really nice 2" barrel that won't fit into my really nice LS50THa.... bawling.gif  I might trade it out for something else... but I'm kinda worried about focus issues with these scopes.



#7 rigel123

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Posted 12 June 2019 - 08:14 PM

That is fantastic. I thought you would need more aperture for that level of detail.

It is amazing what you can get when seeing is good.  I have shots from previous years that show amazing details that I haven’t seen for quite a while!



#8 rigel123

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Posted 12 June 2019 - 08:16 PM

Yeah, it is pretty impressive.  I haven't tried a barlow or anything because, well... i don't have one.  frown.gif  I have a really nice Televue 2X Powermate with a really nice 2" barrel that won't fit into my really nice LS50THa.... bawling.gif  I might trade it out for something else... but I'm kinda worried about focus issues with these scopes.

Is the focus issue due to the focuser itself?



#9 jwestervelt

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Posted 12 June 2019 - 09:30 PM

Well, yes?  The focusers for the scope, even aftermarket, don't have much travel on them.  I have EPs that won't come into focus, for lack of in focus or out focus, and i'm not sure how a barlow or other focal manipulator will play with my setup.



#10 RickV

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Posted 12 June 2019 - 10:33 PM

Well Done Warren!

 

Best,

Rick


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#11 rigel123

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Posted 13 June 2019 - 06:22 AM

Well, yes?  The focusers for the scope, even aftermarket, don't have much travel on them.  I have EPs that won't come into focus, for lack of in focus or out focus, and i'm not sure how a barlow or other focal manipulator will play with my setup.

Does the 50 have the draw tube on the blocking filter like the 60 does?  I have to pull it out about 1 1/2” to use eyepieces and then push it in further to use with my camera to come to focus.



#12 PhotonJohn

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Posted 14 June 2019 - 11:23 AM

Great close-up detail. I have yet to get that close with my Lunt 60, but I'm working on it. Did you change your ROI on the close-up? If so, what scale did you use?

#13 rigel123

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Posted 14 June 2019 - 11:47 AM

Great close-up detail. I have yet to get that close with my Lunt 60, but I'm working on it. Did you change your ROI on the close-up? If so, what scale did you use?



Thanks! Yes, I change the ROI to 1064 X 768, my Skryis has a max ROI of 1920 X 1200, and I use a 2X Telenegative. I can get 90 fps at the lower ROI

#14 jwestervelt

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Posted 14 June 2019 - 08:32 PM

Warren, my EPs that fail to focus are all due to lack of in focus, so backing out the diagonal will not help.



#15 rigel123

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Posted 14 June 2019 - 08:40 PM

Warren, my EPs that fail to focus are all due to lack of in focus, so backing out the diagonal will not help.

Ah, that’s a tougher one to solve for sure!!



#16 RickV

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Posted 15 June 2019 - 07:03 AM

Lack of in focus with the Lunt LS50THa.

 

I suggest changing to a Borg focuser #7842 available from Hutech.

https://www.sciencec...org/focuser.htm

 

I had changed to the #7840 (M42 Helical Focuser S - M42P1 S) but it appears to be no longer available... that's OK, it had only 5mm of focus adjustment (not enough); you want some thing like 10mm of focus adjustment with the shortest possible overall length.

 

To use these 42mm focusers, you will need a couple of step up rings 35mm to 37mm and 37mm to 42mm.

 

Best,

Rick



#17 MAURITS

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Posted 17 June 2019 - 09:38 AM

Well done Warren.



#18 rigel123

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Posted 17 June 2019 - 12:13 PM

Thanks Maurits!



#19 jwestervelt

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Posted 17 June 2019 - 01:14 PM

I can knock about 10mm of of the optical path if I got rid of that nosepiece on the diagonal.  It has a built-in spacer which kinda wrecks the ability to move the focus inwards.  I'm looking at replacing it with a low profile substitute at the moment, but I won't buy or make anything until I get my hands on a barlow and find out if it is necessary.



#20 sushi1128

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Posted 17 June 2019 - 01:27 PM

very nice set ! Warren



#21 rigel123

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Posted 17 June 2019 - 08:35 PM

Thanks Mike!




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