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Daystar Energy Rejection Filter for 6
Daystar Energy Rejection Filter for 6

Daystar Energy Rejection Filter for 6" SCT Telescope

$ 76.55

Availability: 100 in stock
  • Type: Solar
  • Condition: Used
  • All returns accepted: ReturnsNotAccepted
  • Brand: Daystar

    Description

    Daystar Energy Rejection Filter for 6" SCT Telescope. I used this filter for most of 2016, then upgraded to a larger diameter telescope. This filter has since been in climate controlled storage.
    From the manufacturer:
    Daystar Filters
    '
    63mm-Aperture Energy Rejection Filter
    is designed for on-axis use with larger Schmidt-Cassegrain style OTAs to reduce the heat load on the internal components within the optical path, as well as your filter assembly, by absorbing or reflecting UV and/or IR light while transmitting light in the desired spectrum. This ERF can be used with H-alpha, Sodium, and Helium D3 solar filters, but is incompatible with calcium wavelengths.