Just as an off-beat idea, I wondered if anyone had tried using a solar ERF Filter
for Lunar Imaging? I suspect some here may be secret Lunar Imagers as well?
In THEORY, it should work? The Baader ones are supposedly "optically flat" etc.
Of course, there is the (usual) "tilt thing" to ponder, but may I give it a go...
Have to think of some justification for my "extra" ED80 (for my Frankenscope)!
P.S. Why DO the Lunar types use RED filters particularly?
I suppose "seeing" dominates wavelength + resolution?
*** As ever, don't try SOLAR imaging/viewing without requisite Solar filter! ***
Solar ERF for LUNAR imaging? :D
- marktownley
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Re: Solar ERF for LUNAR imaging? :D
yes it works
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: Solar ERF for LUNAR imaging? :D
Hi,
A red filter is very often used on large scopes for lunar (and planetary) imaging since the seeing improves when the wavelength increases (= better seeing in red light compared to blue light).
Some examples here with the C14 :
http://astrosurf.com/viladrich/astro/mo ... oseup.html
This beeing said, it is more straigtforward to use a 1"1/4 red filter than a full aperture ERF ;-)
A red filter is very often used on large scopes for lunar (and planetary) imaging since the seeing improves when the wavelength increases (= better seeing in red light compared to blue light).
Some examples here with the C14 :
http://astrosurf.com/viladrich/astro/mo ... oseup.html
This beeing said, it is more straigtforward to use a 1"1/4 red filter than a full aperture ERF ;-)
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
- rsfoto
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Re: Solar ERF for LUNAR imaging? :D
Hi Christian,christian viladrich wrote: ↑Thu Apr 26, 2018 8:51 pm Hi,
A red filter is very often used on large scopes for lunar (and planetary) imaging since the seeing improves when the wavelength increases (= better seeing in red light compared to blue light).
Some examples here with the C14 :
http://astrosurf.com/viladrich/astro/mo ... oseup.html
This beeing said, it is more straigtforward to use a 1"1/4 red filter than a full aperture ERF ;-)
Astonishing Sun light reflections on Lunar surface
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Re: Solar ERF for LUNAR imaging? :D
Thanks Folks! Indeed, some splendid images there, Christian!
Along with testing the ERF (and the rest of the Frankenscope system)
I will probably settle for a Baader IR-Cut as a "gentler" introduction...
While I establish relative sensitivity of my cameras for Lunar IR.
Along with testing the ERF (and the rest of the Frankenscope system)
I will probably settle for a Baader IR-Cut as a "gentler" introduction...
While I establish relative sensitivity of my cameras for Lunar IR.