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Astrophotography and Sketching >> Solar System Imaging & Processing

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luigis
sage


Reged: 07/27/10

Loc: Buenos Aires, Argentina
Recommend me a Solar Scope or Filter for imaging
      #5491914 - 10/27/12 04:45 PM

Hi,

I'd like to try h-alpha solar imaging with my DSLRs. I own a 5'' Mak-Cass and an SV80ED refractor. I'm not sure if it is best to buy a filter for one of my scopes (which scope? which filter?) or a dedicated solar scope.

I appreciate your recomendations and ideas!

Luigi


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PiotrM
Post Laureate


Reged: 01/03/10

Loc: Poland
Re: Recommend me a Solar Scope or Filter for imaging new [Re: luigis]
      #5492011 - 10/27/12 05:58 PM

For H-alpha solar imaging you need a solar H-alpha scope - like a Lunt 35 or Coronado PST (or bigger). Also note that DLSR isn't the best thing for imaging with such scopes.

With existing scopes you can use Baader AstroSolar for white light imaging.


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luigis
sage


Reged: 07/27/10

Loc: Buenos Aires, Argentina
Re: Recommend me a Solar Scope or Filter for imaging new [Re: PiotrM]
      #5492029 - 10/27/12 06:11 PM

Thank you, white light is boring so I was looking for H-alpha. I don't know if it's possible to fit an h-alpha filter or not to one of my scopes :-) I guess not?

Which one would you recommend me from Coronado or Lunt? Any pointers.

About the DSLR: I have a Canon T2i (550D) that has a 640x480 60fps video mode so I can use it as a planetary camera (I guess).

Thanks!


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aaube
super member


Reged: 04/10/11

Loc: Trois-Rivieres, Canada
Re: Recommend me a Solar Scope or Filter for imaging new [Re: luigis]
      #5492361 - 10/27/12 10:17 PM

I do not know if it is possible but a 5 inch ha filter would probably cost way more than a dedicated solar scope.
As for the DSLR, there's a very good book on this very subject by Jerry Lodriguss ; "A Guide to DSLR Planetary Imaging".

Sincerely,

Alain


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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Recommend me a Solar Scope or Filter for imaging new [Re: aaube]
      #5506071 - 11/05/12 10:17 PM

Get at least a bf10 for imaging purposes. I would say if your going DSLR, then a Lunts more traditional focuser would be better then the Coronados Helical. I have the Coronado 60, but use webcam style imagers and it works just fine for it.

John


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ValeryD
Vendor (Aries)
*****

Reged: 11/26/05

Loc: Kherson, Ukraine.
Re: Recommend me a Solar Scope or Filter for imaging new [Re: geminijk]
      #5506165 - 11/05/12 11:20 PM

Luigi,

The best recommendation can be given if we will know the budget for such a project.

For now (no info about a budget), I believe, that the best solution will be a 100mm ( 0,7A) solar telescope. 100mm is large enough aperture to give you the possibility to take fantastically detailed photos of both prominences and surface features. You will also be able to make movies of prominences eruptions, solar flares, rapid changes in active regions.

35mm and 40mm dedicated solar telescopes are too small and can give you only general views.

The larger the aperture, the better for solar imaging and visual observing and the more interesting will be your adventure with solar observing. 100mm and larger will give you the possibility to have interesting observing sessions even during minimum of the solar activity. A period of the minimum solar activity is quite a bit longer, than a period of the maximum activity.
35mm and 40mm scopes are almost waste of time and money during solar minimum.


Valery.


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luigis
sage


Reged: 07/27/10

Loc: Buenos Aires, Argentina
Re: Recommend me a Solar Scope or Filter for imaging new [Re: ValeryD]
      #5508935 - 11/07/12 07:47 PM

Quote:

Luigi,

The best recommendation can be given if we will know the budget for such a project.

For now (no info about a budget), I believe, that the best solution will be a 100mm ( 0,7A) solar telescope. 100mm is large enough aperture to give you the possibility to take fantastically detailed photos of both prominences and surface features. You will also be able to make movies of prominences eruptions, solar flares, rapid changes in active regions.

35mm and 40mm dedicated solar telescopes are too small and can give you only general views.

The larger the aperture, the better for solar imaging and visual observing and the more interesting will be your adventure with solar observing. 100mm and larger will give you the possibility to have interesting observing sessions even during minimum of the solar activity. A period of the minimum solar activity is quite a bit longer, than a period of the maximum activity.
35mm and 40mm scopes are almost waste of time and money during solar minimum.


Valery.




Thank you Valery,
It seems the good scopes for imaging are a little outside my budget so maybe I'll have to wait.


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ourobouros2k2
sage


Reged: 11/10/11

Loc: okc area, oklahoma
Re: Recommend me a Solar Scope or Filter for imaging new [Re: luigis]
      #5509028 - 11/07/12 08:57 PM

You would be surprised what you can do on a budget. I had a single stack lunt 60 with a tilt tuner, and a DMK21 and I was very pleased with the results. Here are some samples from that scope combo. It had the small, b600 blocking filter too. I really regret getting rid of that setup.



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ValeryD
Vendor (Aries)
*****

Reged: 11/26/05

Loc: Kherson, Ukraine.
Re: Recommend me a Solar Scope or Filter for imaging new [Re: luigis]
      #5509525 - 11/08/12 08:33 AM

Quote:



Thank you Valery,
It seems the good scopes for imaging are a little outside my budget so maybe I'll have to wait.




You can sell all your astro things which are not in constant use to help to finance a new scope/filter.

And better to wait and then buy the scope you will not regtet about it's too small size. Then, be sure, the cameras will be much better and significantly cheaper than right now. Buy the filter/scope first, because they always will rise in price. And with cameras/computers - directly opposite.


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luigis
sage


Reged: 07/27/10

Loc: Buenos Aires, Argentina
Re: Recommend me a Solar Scope or Filter for imaging new [Re: ourobouros2k2]
      #5509802 - 11/08/12 11:36 AM

Quote:

You would be surprised what you can do on a budget. I had a single stack lunt 60 with a tilt tuner, and a DMK21 and I was very pleased with the results. Here are some samples from that scope combo. It had the small, b600 blocking filter too. I really regret getting rid of that setup.






And now I'm seriously confused!


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ValeryD
Vendor (Aries)
*****

Reged: 11/26/05

Loc: Kherson, Ukraine.
Re: Recommend me a Solar Scope or Filter for imaging new [Re: luigis]
      #5510084 - 11/08/12 02:47 PM

Quote:



And now I'm seriously confused!




Don't be confused. I can show you the photos with 115mm aperture. While these confused you pictures are fine for 60mm aperture, they still can't be even distantly compared with pictures possible with 115mm aperture. And 100mm is very close to 115mm, especially in good south climate.

So, believe me, aperture rules without any questions! And your pleasure will be directly proportional to the results you can obtain and what you can see visually.


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ourobouros2k2
sage


Reged: 11/10/11

Loc: okc area, oklahoma
Re: Recommend me a Solar Scope or Filter for imaging new [Re: ValeryD]
      #5510401 - 11/08/12 06:54 PM

Certainly won't argue that aperture rules, but larger aperture can be prohibitively expensive. Guess it's all in personal taste, as 60mm provided plenty good results for me.

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luigis
sage


Reged: 07/27/10

Loc: Buenos Aires, Argentina
Re: Recommend me a Solar Scope or Filter for imaging new [Re: ourobouros2k2]
      #5511976 - 11/09/12 04:59 PM

You've been a great help so far.

I was happy about the thrill of starting solar photography but I think I'm not ready yet.

I'm afraid a 60mm won't deliver the images I would like to produce and the budget is not enough for a larger aperture scope.

I can always do some white light images....


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