do i need a uv/ir filter with an erf ?
- nicosolcy
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Re: do i need a uv/ir filter with an erf ?
The ERF does not cut off IR completely, but the heat load on the quark will be negligible with the front ERF filter, so the Quark can deal easily with the residual impact of IR:
https://www.baader-planetarium.com/en/d ... ilters.pdf
So, it appears additional measures other than the ERF are not necessary and you can skip that UV / IR filter
https://www.baader-planetarium.com/en/d ... ilters.pdf
So, it appears additional measures other than the ERF are not necessary and you can skip that UV / IR filter
Nick
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Photosphere Junkie!
Borg 77 EDII f.6.6 (510mm), APM Herschel Wedge (Baader ND1.8)
Lunt 40mm SS FTF
ZWO ASI183MM, SW SolarQuest Mount
Baader Solar Continuum 540.0nm (FWHM 7.5) / Altair G-Band 430.3nm (FWHM 2nm) / Antlia K-Line 393.3nm (FWHM 3nm)
---------------------------------------------------------------
Photosphere Junkie!
Borg 77 EDII f.6.6 (510mm), APM Herschel Wedge (Baader ND1.8)
Lunt 40mm SS FTF
ZWO ASI183MM, SW SolarQuest Mount
Baader Solar Continuum 540.0nm (FWHM 7.5) / Altair G-Band 430.3nm (FWHM 2nm) / Antlia K-Line 393.3nm (FWHM 3nm)
- marktownley
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Re: do i need a uv/ir filter with an erf ?
You can do without it like Nick says.
http://brierleyhillsolar.blogspot.co.uk/
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