Altair Hydrogen Alpha D-ERF
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Altair Hydrogen Alpha D-ERF

TypeSolar
SizeOther
Bandwidth40 nm
Users 5
Images 47
Most often used with

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Community notes
Dichroic Solar Energy Rejection Filter (D-ERF) for use as a pre-filter with Daystar Quark or other solar etalon.
Also available in the following variants:
(115mm aperture)
(152mm aperture)
(230mm aperture)
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