Looking at future solar telescope
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Re: Looking at future solar telescope
Tuning individual etalons is not difficult once you have learned how they react , what can be difficult for viewing is tuning an external etalon on a long scope without leaving the eyepiece . Reaching both etalons without taking my eye off of the view on my SM 60 is not difficult , I can not reach the external etalon on my 90 mm scope without leaving my viewing position . Once tuned into what I am viewing it is nice to sit back and enjoy the show , unfortunate it is half time right now .
I have viewed through a lunt pressure tuned 60 and would say the view was comparable to what I see through my Coronado 60 in single stack mode , I do like the way Lunt is offering their new double stack scopes by doubling up the internal modules . The advantage that I see here is ability to easily tune both etalons at the eyepiece . External etalons should provide a brighter view in my opinion because you will be eliminating the corrective lenses that internal etalons require . My gear is somewhat dated by today's standards and would welcome the opportunity to compare a new Lunt internal double stack against the new Coronado SM III external DS
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
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Re: Looking at future solar telescope
I began my Solar journey with a PST then got a Solarmax60 and double stacked it. No problems until the day I unscrewed the external etalon to pack up and it fell to the ground ! ( I regret selling the PST as I could have used it for a PST Mod!. The insurance company paid out and I bought a Lunt80 with pressure tuning, much better than the Coronado. Present day....I'm into imaging ( when there's something to image ) and worked a swap !. I now have a Quark ( out on loan ) and a Lunt60 pressure tuned that I love. Were I to revert to viewing only and money wasn't a problem, I'd double stack the Lunt60 and be a happy bunny.
A thing to bear in mind is that there isn't an obstruction with the pressure tuned Lunt that you get with tilt action etalons.
Hope this helps.
Keith
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Re: Looking at future solar telescope
Am I missing something here? You state that with the Quark you are limited to one or two scopes so instead, you are looking for a dedicated solar scope. Correct me if I'm wrong, but isn't a dedicated solar scope even more limited in that it is designed for a single intent? A Quark, a couple of TV plossel eyepiece (which BTW are nice to have in your eyepiece collection anyway) and you'd be set.Lady Fraktor wrote: ↑Fri May 31, 2019 1:02 am The Quark restricts me to only one or two telescopes due to the 4.2x barlow built into it, with the Coronado or Lunt I can pick my barlow and eyepiece for the views.
My shortest focal length refractor is a f/6.9 which would be f/29 with the Quark. Eyepiece selection becomes fairly limited at that focal length.
Explore Scientific 16" truss DOB; Explore Scientific 152mm carbon fiber triplet APO w/3" Feathertouch; Explore Scientific 80mm triplet; Apertura 10" DOB w/setting circle & Tweeker's dream; Celestron 9.25" EDGE; Celestron 14" EDGE with Feathertouch focuser; Celestron CGE Pro mount; Celestron AVX mount with ADM "D" saddle; QHY Polemaster; and my first, a Sears 60mm F/11 doublet; ZWO ASI294MC-Cool; 2" & 3" ES field flatteners; Televue 0.8 field flattener/reducer; lots of TV and ES eyepieces; Lunt solar wedge with Celestron XLT 102 refractor; Quark-C
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Re: Looking at future solar telescope
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
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Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1000101)
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Re: Looking at future solar telescope
Thank you for this Kieth, I am not sure if this would affect the view with the new Coronado III but something to check into to be sure!
I started out doing
I used to mount it on the side of my 150mn
I was considering the PST conversion as well but someone at a star party in Austria decided to give my PST a new home.
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1000101)
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Re: Looking at future solar telescope
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
But, that night I can use my 80mm for some
I can see where the Barlow in the Quark would limit the device for
Explore Scientific 16" truss DOB; Explore Scientific 152mm carbon fiber triplet APO w/3" Feathertouch; Explore Scientific 80mm triplet; Apertura 10" DOB w/setting circle & Tweeker's dream; Celestron 9.25" EDGE; Celestron 14" EDGE with Feathertouch focuser; Celestron CGE Pro mount; Celestron AVX mount with ADM "D" saddle; QHY Polemaster; and my first, a Sears 60mm F/11 doublet; ZWO ASI294MC-Cool; 2" & 3" ES field flatteners; Televue 0.8 field flattener/reducer; lots of TV and ES eyepieces; Lunt solar wedge with Celestron XLT 102 refractor; Quark-C
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Re: Looking at future solar telescope
I've been confused, as well. It's pretty clear that Gabby isn't interested in a fixed 4.2x Barlow, but for visual use, I normally use my 40mm and 32mm Plossls with my TV-85 and Quark, and I love what I get to see.
smp
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Telescopes: Questar 3.5 Standard SN 18-11421; Stellina (EAA); Vespera II (EAA)
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Re: Looking at future solar telescope
Yes you can squeeze the full disk into a 40mm plossil but the view was too much like looking through a straw for me and is why I used wide angle 2" eyepieces to try to open it up . I have found that starting at native
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
No problem at all! I apologize if I came across as arrogant in my post! Let's please continue the conversation.Solsearcher wrote: ↑Wed Jun 05, 2019 8:34 pm I was not trying to sidetrack this thread , I did state that viewing at 4x is "more forgiving than imaging" and I have used my Quark for both . These are my personal opinions and nothing more , I was agreeing with Lady Fractor's logic and stating why . For visual use I preferred my dedicated solar scopes because they do offer more flexibility .
Yes you can squeeze the full disk into a 40mm plossil but the view was too much like looking through a straw for me and is why I used wide angle 2" eyepieces to try to open it up . I have found that starting at native F/L does offer more options visually as well as for imaging , but that is just me .
I am coming at this from a pure visual observation only standpoint, as that is what I do (at this point anyway).
I am confused about the comments made that indicate observing in
I get it that the Quark comes with the built-in 4.2x Barlow, and perhaps one may want to use only a 2x Barlow. Is that what you mean by more options?
Don't get me wrong. When I was starting out with my Quark, the jump from the white light image I saw, to the much more magnified
Maybe I'm being too simplistic, but it seems to me that if one is going to jump up to something on the order of a 4x Barlow to ultimately do their viewing anyway, then the Quark is ready made for this. If being able to have 1.5x, or 2x, or 2.5x is what one is looking for, along with perhaps 4x, then I understand that the Quark will be too restrictive.
Is that what you mean?
Thanks very much for your thoughts and comments!
smp
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Telescopes: Questar 3.5 Standard SN 18-11421; Stellina (EAA); Vespera II (EAA)
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Re: Looking at future solar telescope
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
True that but on the other side of it, like Stephen already stated, any views of the sun's disc smaller than that provided with my current combination of Quark, 80mmSolsearcher wrote: ↑Wed Jun 05, 2019 9:18 pm The field of view appears larger at shorter f/l , the Quark produces long F/L so the view appears more compressed by comparison . Think of using a night scope on the moon with a permanent 4x barlow and then using an eyepiece to back out enough to contain it .
Listen, if there was only one perfect setup, there would be no need for the wide variety of equipment available. And having started astronomy in the mid 1970s I can tell you, we are lucky there is so much relativly affordable equipment available these days to choose from. We are just having a friendly conversation about the pluses and minuses of the different set ups, that's what I meant about getting the thread off track since the original question was about dedicated solar scopes. I just thought I'd add a little conversation to help her make an informed decision.
BTW Solsearcher, I didn't imply that you took the thread off course; it is actually the discussion of the Quark that did that and I'm one of those that has done so.
Explore Scientific 16" truss DOB; Explore Scientific 152mm carbon fiber triplet APO w/3" Feathertouch; Explore Scientific 80mm triplet; Apertura 10" DOB w/setting circle & Tweeker's dream; Celestron 9.25" EDGE; Celestron 14" EDGE with Feathertouch focuser; Celestron CGE Pro mount; Celestron AVX mount with ADM "D" saddle; QHY Polemaster; and my first, a Sears 60mm F/11 doublet; ZWO ASI294MC-Cool; 2" & 3" ES field flatteners; Televue 0.8 field flattener/reducer; lots of TV and ES eyepieces; Lunt solar wedge with Celestron XLT 102 refractor; Quark-C
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Re: Looking at future solar telescope
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
If I was to use a Coronado 90mm
Being able to change the barlow just adds a bit of variety with the view.
TeleVue 85mm/ Quark(4.2x) =
Using the Coronado I can get equivalent views using a 25mm Plossl using Klee 2.2x 0.71°, Dakin 2.4x 0.66°, TV 2.5x 0.63°
That would be
Using the barlows only provides options, both ways (quark or barlow) are fine visually, just a different method.
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1000101)
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Re: Looking at future solar telescope
Thanks very much to you folks who’ve helped increase my knowledge here.
:thumb:
smp
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Telescopes: Questar 3.5 Standard SN 18-11421; Stellina (EAA); Vespera II (EAA)
Solar: Thousand Oaks white light filter; Daystar Quark (chromosphere) Hα filter
Mounts: Explore Scientific Twilight I; Majestic heavy duty tripod
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Re: Looking at future solar telescope
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
From what I can glean, the Lunt and Coronado offer the more flexible option, adding barlows galore as appropriate, but limited to specific dedicated solar telescopes.
The Quark, by contrast, can be used across a number of other telescopes that retain their night-time capability - but the build of the Quark starts off with an in-built barlow.
I do what I do because I can, and because I want to.
It doesn't mean I know what I'm doing
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Re: Looking at future solar telescope
Lunt and Coronado both use corrective lenses on their internal etalons to straighten the light before it enters the etalon and then returns the light back to the cone after it exits the etalon . This is where the 2 systems differ , one requires
W/L scope Williams Optic Megrez 110mm / Lunt herschel wedge .
Night scope Celestron 9.25 XLT
Mounts HEQ6 , HEQ5 , Losmandy G8
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Re: Looking at future solar telescope
Explore Scientific 16" truss DOB; Explore Scientific 152mm carbon fiber triplet APO w/3" Feathertouch; Explore Scientific 80mm triplet; Apertura 10" DOB w/setting circle & Tweeker's dream; Celestron 9.25" EDGE; Celestron 14" EDGE with Feathertouch focuser; Celestron CGE Pro mount; Celestron AVX mount with ADM "D" saddle; QHY Polemaster; and my first, a Sears 60mm F/11 doublet; ZWO ASI294MC-Cool; 2" & 3" ES field flatteners; Televue 0.8 field flattener/reducer; lots of TV and ES eyepieces; Lunt solar wedge with Celestron XLT 102 refractor; Quark-C
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Re: Looking at future solar telescope
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1000101)
The only culture I have is from yogurt
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