SM2 etalon on SM3 single stack

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David Fox
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SM2 etalon on SM3 single stack

Post by David Fox »

Hi,

Have not come across specific Coronado double stack 'etalon add on' advertised as such for SM3.

Can a SM2 60mm filter, which is generally advertised, be added to an existing SM3 70mm (single) making for a double stack?
Would this also require additional thread adapter? I think the actual solar part of the SM£ is 60mm.

:bow2


Lunt 60tha
Lunt 50tha with DS
Lunt HW 2' on Skywatcher 120ed esprit / Skywatcher 72ed
Coronado SolarMax 3 70mm SS
TI Dome / EQ8r / solar quest / Atik & Zwo
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DeepSolar64
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Re: SM2 etalon on SM3 single stack

Post by DeepSolar64 »

I think the threads are the same. Check this out!

viewtopic.php?f=10&t=30234


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

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Re: SM2 etalon on SM3 single stack

Post by David Fox »

Excellent James thank you.
Must start saving while still available 😉
Don't know what to make of Coronado - hard to know what to do.


Lunt 60tha
Lunt 50tha with DS
Lunt HW 2' on Skywatcher 120ed esprit / Skywatcher 72ed
Coronado SolarMax 3 70mm SS
TI Dome / EQ8r / solar quest / Atik & Zwo
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Re: SM2 etalon on SM3 single stack

Post by DeepSolar64 »

David Fox wrote: Sat Apr 24, 2021 6:32 pm Excellent James thank you.
Must start saving while still available 😉
Don't know what to make of Coronado - hard to know what to do.

The SolarMax II line is being phased out as far as I can tell in favor of the SolarMax III line. Meade isn't doing very well lately. I wish someone would buy Coronado from them. Celestron maybe? Coronado has a lot of potential.

Lunt would be an obviously good buyer in a way but it would remove a major competitor and competition helps keep prices down.


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

Image Visual Observer
" Way more fun to see it! "
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David Fox
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Re: SM2 etalon on SM3 single stack

Post by David Fox »

Think Lunt are doing fine by themselves and yeah agree competition is absolutary necessary and driven by Lunt and Daystar.
From my posts on SC and CN, appears to be very few folk on the SM3 ladder.

Have to say, and I know superfulness, Coronado is a looker, anytime i've the Coronado is out people around me say wow😘
Never say the same bout my Lunt, which is far superior internally in my experience.
Optics rule suppose, both inside and out.


Lunt 60tha
Lunt 50tha with DS
Lunt HW 2' on Skywatcher 120ed esprit / Skywatcher 72ed
Coronado SolarMax 3 70mm SS
TI Dome / EQ8r / solar quest / Atik & Zwo
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David Fox
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Re: SM2 etalon on SM3 single stack

Post by David Fox »

sorry - 'Superficial' not superfulness


Lunt 60tha
Lunt 50tha with DS
Lunt HW 2' on Skywatcher 120ed esprit / Skywatcher 72ed
Coronado SolarMax 3 70mm SS
TI Dome / EQ8r / solar quest / Atik & Zwo
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