MrStarGuy 1.25" H-Alpha 12nm Wideband Filter

MrStarGuy 1.25" H-Alpha 12nm Wideband Filter

MrStarGuy 1.25" H-Alpha 12nm Wideband Filter

B&H # STQHA12403Y MFR # QHA12403Y
MrStarGuy 1.25" H-Alpha 12nm Wideband Filter

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Expected availability: 7-14 business days

Product Highlights

  • Deep Red Long Pass Filter
  • Ideal for Photographing Emissions Nebula
  • Enhances Contrast and Clarity
  • Coated and Polished HB610 Optical Glass

Size: 1.25"

1.25" 2"

Not available with current selections

Filter Type: Wideband, 12nm

Narrowband, 7nm

Special Order

Wideband, 12nm
$0.00 Tax Collected Outside NY and NJ

You Pay: $89.95

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MrStarGuy QHA12403Y overview

  • 1Description

Enhancing the contrast of nebulae emissions by passing only hydrogen alpha light, the H-Alpha 12nm Wideband Filter from MrStarGuy is compatible with telescopes featuring a 1.25"-diameter eyepiece. The design of this deep red long pass filter passes a wide, 12nm band of hydrogen and is ideal for shorter exposure times compared to a narrowband filter. By passing H-alpha light and attenuating light pollution wavelengths, this filter is especially well suited to photographing the Horsehead and North America Nebulae, along with other emission nebulae. It is constructed from HB610 tinted glass and polished and coated on both sides to prevent surface reflections and halo effects.

UPC: 811971017900
In the Box
MrStarGuy 1.25" H-Alpha 12nm Wideband Filter
  • Plastic Filter Case
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    MrStarGuy QHA12403Y specs

    Size 1.25" / 31.75 mm (diameter)
    Transmittance Tmax at 656 nm H-alpha light transmittance of 80% or more
    Half-bandwidth (FWHM): 7 (+/- 0.5 nm)
    Cutoff range (blocking area): > OD3 (0.1%) at 300-1100 nm
    Construction HB610 tinted glass, 1.85 mm-thick (1 / 4λ high flatness optical processing time)
    Packaging Info
    Package Weight 0.05 lb
    Box Dimensions (LxWxH) 3.0 x 3.0 x 0.9"

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