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First light with first H-alpha telescope

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#1 Bokchoy Ninja

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Posted 06 June 2020 - 06:06 PM

Caught a break in the clouds today and got to use my new Lunt 60 SS w/ a ZWO ASI120MM Mini. Full disc image was taken using an 0.5 barlow before the sensor. Tracked on my EQR-6 Pro mount which made everything so much easier.

 

5% of 1,000 frames stacked in autostakkert and some tweaking in Gimp.

 

Can't wait for my 2x focal extender to come in so I can start getting more detail on the smaller features. Also desperately trying to get my mount working via USB so I don't have to be outside in the sun while imaging.

 

I was a bit concerned because I noticed that my etalon was rather dusty, but I guess this doesn't appreciably affect the results.

 

Thanks to everyone here who's been giving me advice over the last few days!

 

gallery_308768_13461_632672.png

 

 

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Edited by Bokchoy Ninja, 06 June 2020 - 06:06 PM.

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#2 Bokchoy Ninja

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Posted 06 June 2020 - 07:11 PM

Any feedback on how to improve the images would be appreciated. Think I'm getting some weird artifacts from the stacking.



#3 bigdob24

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Posted 06 June 2020 - 07:27 PM

Nice first attempt 
 

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#4 Gregory Gross

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Posted 06 June 2020 - 07:52 PM

I was a bit concerned because I noticed that my etalon was rather dusty, but I guess this doesn't appreciably affect the results.
 
Thanks to everyone here who's been giving me advice over the last few days!

Can you include a picture of the dust?

 

Good to hear the advice was useful! I know a number of us sang the praises of double stacking in this thread. Do you have plans to double stack in the near future, or are you going to stick with single-stacked mode for the time being?



#5 hopskipson

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Posted 06 June 2020 - 07:58 PM

Very nice first light! Nice to see some action too.
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#6 Bokchoy Ninja

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Posted 06 June 2020 - 07:59 PM

Can you include a picture of the dust?

 

Good to hear the advice was useful! I know a number of us sang the praises of double stacking in this thread. Do you have plans to double stack in the near future, or are you going to stick with single-stacked mode for the time being?

I'm going to see what Lunt has to say before I post any more details about the dust. I think that's only fair.

 

Regarding SS vs DS, based on the photos I was able to get I really don't think I need to double stack. I can see the allure for visual observing for sure, but for photography I feel like the Brightness/Contrast slider gives me 50% of what another etalon would, at 0% of the cost.



#7 Gregory Gross

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Posted 06 June 2020 - 08:07 PM

Good to hear this. I know that you kicked off that earlier thread while you were considering a 50mm Lunt and were asking whether you should double stack it, so it sounds like you're happy with ultimately going for a 60mm scope (better resolution) and the imaging contrast it's providing you in single-stacked mode.


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#8 Bokchoy Ninja

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Posted 06 June 2020 - 08:11 PM

Good to hear this. I know that you kicked off that earlier thread while you were considering a 50mm Lunt and were asking whether you should double stack it, so it sounds like you're happy with ultimately going for a 60mm scope (better resolution) and the imaging contrast it's providing you in single-stacked mode.

Exactly. I was stuck between a DS 50mm and a SS 60mm and ultimately happy I went with the 60mm based on the advice I received here. Good to know that DSing is an option but to be honest I can think of a few more cost-effective uses for $1,600 -- like an imaging newtonian, filter wheel, and cooled monochrome camera for astrophotography. Luckily the contrast I'm getting with the SS is actually surprisingly good.


Edited by Bokchoy Ninja, 06 June 2020 - 08:12 PM.

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#9 rigel123

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Posted 06 June 2020 - 09:05 PM

Nice start!  I notice the artifacts you mentioned in your close up shot where it looks like some sections got “smeared” which may have to do with placement of alignment points.  What software are you using for stacking and processing?


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#10 PhotonJohn

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Posted 06 June 2020 - 09:11 PM

Impressive firsties Bok.
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#11 sunnyday

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Posted 06 June 2020 - 09:13 PM

oh boy, for a first it's very successful.
well done and thank you.


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#12 Bokchoy Ninja

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Posted 06 June 2020 - 09:35 PM

Nice start!  I notice the artifacts you mentioned in your close up shot where it looks like some sections got “smeared” which may have to do with placement of alignment points.  What software are you using for stacking and processing?

Ah, thanks! I just chose the perimeter of the disc for alignment choices. I'll see what happens if I vary that.



#13 rigel123

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Posted 06 June 2020 - 09:56 PM

Ah, thanks! I just chose the perimeter of the disc for alignment choices. I'll see what happens if I vary that.

If you are using Autostakkert just let it automatically select the alignment points



#14 Bokchoy Ninja

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Posted 06 June 2020 - 10:16 PM

It's amazing what a bit of smarter processing will do for the same data.

 

gallery_308768_13461_1416026.pnggallery_308768_13461_1183161.png


Edited by Bokchoy Ninja, 06 June 2020 - 10:22 PM.

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#15 rigel123

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Posted 07 June 2020 - 05:12 AM

It's amazing what a bit of smarter processing will do for the same data.

 

gallery_308768_13461_1416026.pnggallery_308768_13461_1183161.png

waytogo.gif


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#16 philmor56

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Posted 07 June 2020 - 06:00 AM

Exactly. I was stuck between a DS 50mm and a SS 60mm and ultimately happy I went with the 60mm based on the advice I received here. Good to know that DSing is an option but to be honest I can think of a few more cost-effective uses for $1,600 -- like an imaging newtonian, filter wheel, and cooled monochrome camera for astrophotography. Luckily the contrast I'm getting with the SS is actually surprisingly good.

Great first images. Must feel good seeing the first result like that.

You made a wise choice, it was the same quandry I went through as well, and I'm glad I went for the 60mm as well.

 

Now, welcome to the world of post processing. Eek!

waytogo.gif


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