MrStarGuy 1.25" H-Alpha 7nm Narrowband Filter

BH #STQHA7403Y • MFR #QHA7403Y
MrStarGuy
MrStarGuy 1.25" H-Alpha 7nm Narrowband Filter
Key Features
  • Deep Red Long Pass Filter
  • Ideal for Photographing Emissions Nebula
  • Enhances Contrast and Clarity
  • Coated and Polished HB610 Optical Glass
Enhancing the contrast of nebulae emissions by passing only hydrogen alpha light, the H-Alpha 7nm Narrowband Filter from MrStarGuy is compatible with telescopes featuring a 1.25"-diameter eyepiece. The design of this deep red long pass filter passes a narrow, 7nm band of hydrogen for increased contrast and separation of values. 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.
Special Order
Expected availability: 7-14 business days
On Display in Store
$179.00
$30/mo. suggested payments.*
with 6 Mos. Promo Financing
Jacob K., B&H Optics Expert

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MrStarGuy QHA7403Y Overview

Enhancing the contrast of nebulae emissions by passing only hydrogen alpha light, the H-Alpha 7nm Narrowband Filter from MrStarGuy is compatible with telescopes featuring a 1.25"-diameter eyepiece. The design of this deep red long pass filter passes a narrow, 7nm band of hydrogen for increased contrast and separation of values. 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.

MrStarGuy QHA7403Y Specs

Size1.25" / 31.75 mm (diameter)
TransmittanceTmax 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
ConstructionHB610 tinted glass, 1.85 mm-thick (1 / 4λ high flatness optical processing time)
Packaging Info
Package Weight0.05 lb
Box Dimensions (LxWxH)3 x 3 x 0.9"
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