DayStar Filters 115mm-Aperture Off-Axis Energy Rejection Filter (410mm Cap Diameter)

BH #DAE410F115 • MFR #E-410F115
DayStar Filters 115mm-Aperture Off-Axis Energy Rejection Filter (410mm Cap Diameter)
Key Features
  • For Use on Schmidt-Cassegrain OTAs
  • Reduces Heat Load on Filter Assembly
  • Absorbs or Reflects UV and/or IR Light
  • For H-alpha, Sodium, Helium D3 Filters
Daystar Filters' 115mm-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.
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  • This item cannot be returned.
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Not Safe for Solar Viewing
Warning: Viewing the Sun without proper protection can cause permanent eye damage, blindness, and equipment damage. Always use an approved ISO 12312-2 certified solar filter when observing the Sun through optics or cameras. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.
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DayStar Filters E-410F115 Overview

Daystar Filters' 115mm-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.

Choose the ERF aperture size to approximately match your OTAs front lens. Select the correct filter cap size by measuring the outside diameter of the OTA's front retaining ring, including fastener heads, and choose the ERF with the smallest inside diameter that will fit over the end. A set of screws is included to secure the ERF into place. This ERF's cap has an inside diameter of 41.0cm (16.141").

UPC: 724696425670

DayStar Filters E-410F115 Specs

DayStar Filters E-410F115 Reviews

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