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Energy Rejection Filter - Stock SizesDaystar Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter. Daystar filter assemblies operate best

Turns ordinary Nikon and Canon style SLR lenses into a Hydrogen Alpha Solar Telescope

Item Details: Specimen NT0018 is approx

The housing offers live LCD readout of the filter's wavelength output (accurate to 0

Environmental Hard Case

Those are the 'blocker and trimmer' elements

which can be entered in the Free version to convert it to Pro

Power: 10 to 30VDC

Makes your optics train much shorter

low iron stone meteorite was recovered in 2006 in Agadez

fault5 year warrantyDaystar 80mm Solar Bundle is availablein a choice of "prominence" or "chromosphere"~ Choose either for the same price of $1

palm-sized optional battery pack

Stayflat mailer design includes a tear strip so the recipient can open their package quickly and easily