Antlia Solar Discover Dualband Energy Rejection Filter(ERF) – 130mm,150mm, 200mm
885,96 €
The Antlia Dualband Solar Energy Rejection Filter is designed by combining Hydrogen Alpha, Calcium K-Line and Calcium H-Line in one dualband filter. It is the filter used in conjunction with Antlia So
Description
The Antlia Dualband Solar Energy Rejection Filter is designed by combining Hydrogen Alpha, Calcium K-Line and Calcium H-Line in one dualband filter. It is the filter used in conjunction with Antlia Solar Discover 3nm CaK, Solar, 5Å CaK or similar product to protect your solar imaging equipments from high temperature and bandpass shifting by rejecting massive heat before it enters telescope when imaging and observing solar.
They are very effective at blocking UV and IR light, and allow the desired wavelengths Ha 656.3nm, CaK 393.3nm and CaH 396.8nm to pass through.
Product Features:
– FWHM 25nm with CWL at H-alpha wavelength of 656.3nm; Transmission: T＞95%
– FHWM 25nm with CWL at CaK wavelength 393.3nm covering Calcium K-Line 393.3nm and Calcium K-Line 396.8nm; Transmission: T＞90%
– Coating Range: 200-1700nm wavelengths
– Finished with the most advanced multicoatings
– Coated on heat resistant double-polished substrate
– Antlia ERF 130mm, 150mm，200mm filters are mounted in a housing/cell to hold it in front of the telescope
– Antlia ERF 2’’ mounted filter is installed on the back end of the refractor telescope
– Transmitted Wavefront: Lambda/4 or better.
Product Specifications:
|
Antlia Dual ERF Filter |
H-alpha |
CaK & CaH |
|
FWHM |
25nm |
25nm |
|
CWL (Central Wavelength) |
Ha 656.3nm</p Explore these guides from our Astro Wiki to learn more about this type of equipment: Related products |
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