Solarmax 60 + BF 15mm
Solarmax 60 + BF 15mm
I have the opportunity to buy Coronado Etalon 60mm + BF 15mm. Will such a set + refractor give the same image as a regular Solar Lunt / Coronado 60mm telescope? Or maybe we can somehow use a refractor with a larger diameter - maybe this etalon could be given somewhere at the beginning or in the middle of the tube + some ERF for the lens?
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Re: Solarmax 60 + BF 15mm
Charon,
I have used an original SM60 mounted on an ED80 successfully for many years.
IMHO opinion it works better than the current SM60II scope.
I have used an original SM60 mounted on an ED80 successfully for many years.
IMHO opinion it works better than the current SM60II scope.
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Re: Solarmax 60 + BF 15mm
It really depends on the quality of the etalon to know precisely how it’ll perform. But paired with a small refractor (there’s no gain using a large refractor as you have to attach the SM60 to the front of the telescope, so it will have a 60mm aperture whatever your choice of scope) it should give you nice views of prominences, and fainter views of surface detail like filaments and active regions. To bring out more surface detail you’d need to add another external ‘double stack’ filter, which would narrow the bandwidth and improve contrast.
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Re: Solarmax 60 + BF 15mm
I have a Coronado SolarMax II 60 doublestacked scope. Overall I am satisfied with it. It's does well visually on low power full disc views. It's performance drops as the magnification increases. I almost never top 50x with it and run usually between 16x and 33x. It does well there. I also have the BF15 blocking filter. So far it has done well and gave no issues.
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Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
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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
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Re: Solarmax 60 + BF 15mm
Thanks for the answers. The seller withdrew. I will be taking the new 50mm Lunt.
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Re: Solarmax 60 + BF 15mm
I don’t think you will lose with the Lunt LS50Tha. Good observing!
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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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: Solarmax 60 + BF 15mm
I have an original (around 25 years old) Coronado US made etalon used on 80mm three element Officina Stellare APO refractor with both BF15 and BF30. I also have a 4 year old Lunt 60mm Ha with pressure tuner and BF15. Both are close but I think I get a bit better contrast on surface detail with the external etalon with tilt tuner than the newer Lunt.
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Astro Physics 900 and 1100 mounts, Ioptron MINI Tower Pro ALT/AZ mount, ZWO AM5 mount,
Lunt 60mm Ha single stack, Coronado 60mm Ha single stack with BF 30
Day Star Quark Chromosphere
Player One Neptune mono with 178 chip, 256mm DDR, tilt plane for solar imaging
ASI 071 Pro cooled color for DS imaging
ATIK 490 EX OSC for DS imaging
SBIG STL 6303e mono with RGBL and Ha, SII, OIII filters for DS imaging
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Re: Solarmax 60 + BF 15mm
I would love to have one of the US made pre-Meade Coronado etalons to see how they compare with those of Meade Coronado. Many seem to prefer the pre-Meade ones.
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
Visual Observer
" Way more fun to see it! "
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
Visual Observer
" Way more fun to see it! "