What do you think about an internal ERF installed inside a SCT ota in front of the secondary mirror?
Could it be a good idea?
Ale
Internal DERF ina Schmidt Cassegrain
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Internal DERF ina Schmidt Cassegrain
Alessandro Bianconi
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Celestron C14HD Edge
Celestron C14XLT made in USA
Refractor 228 F8 Truss Tube with D-ERF 110mm
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Starizona Hypestar V4
10 Micron GM2000HPS II Mount
Ioptron CEM120 Mount
ZWO ASI2600MC Pro
ZWO ASI2600MM pro
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Re: Internal DERF ina Schmidt Cassegrain
Who knows Ale, uncharted territory. However, you are an experienced modder, if you are happy to risk the scope trying it then why not
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Re: Internal DERF ina Schmidt Cassegrain
If you where going to try this. You are going to need a really good ERF 1/10wave or better on transmission. You would be going through the ERF twice. I would tilt it so the reflection would not go straight back to the main mirror. You might want to cut a fan or two to pull the hot air out of the tube also.
Good luck if you try it.
Mark W.
Good luck if you try it.
Mark W.
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Re: Internal DERF ina Schmidt Cassegrain
yes, reflections indeed. Maybe a circular polariser or 1/4 waveplate needed then too?
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!