Coronado 90° 15mm H-Alpha Blocking Filter (1.25")

Coronado 90° 15mm H-Alpha Blocking Filter (1.25")

Coronado 90° 15mm H-Alpha Blocking Filter (1.25")

B&H # COBF15 MFR # BF15
Coronado 90° 15mm H-Alpha Blocking Filter (1.25")

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Product Highlights

  • Hydrogen-Alpha Bandpass
  • 90° Star Diagonal
  • Fits 1.25" Drawtubes and Eyepieces
  • For Telescope Focal Lengths up to 1500mm
  • SolarMax Solar Viewing Filter Required
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Filter Size: 15mm

5mm

Special Order

10mm 15mm

SAFETY FIRST: Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic. For direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder, ensure your filter is ISO 12312-2 (also written as ISO 12312-2:2015) certified. 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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  • 1Description

Tuned to the popular hydrogen-alpha wavelength, the 90° 15mm H-Alpha Blocking Filter from Coronado is designed to be used on OTAs with focal lengths of up to 1500mm, and is the secondary interference filter in a Coronado solar viewing system. For safe viewing and to protect the optical system, it must be used in conjunction with a front SolarMax filter. The snout and eyepiece holder are made to fit 1.25" drawtubes and eyepieces, and the 90° mirror positions the user's head in a comfortable viewing position - especially when aimed at or near the zenith. While SolarMax filters are sold in kits that include a blocking filter, this 15mm filter is offered here for viewers who have two different sized telescopes that they want to use their SolarMax system with but require a different size blocking filter.

UPC: 709942995510
Packaging Info
Package Weight 0.55 lb
Box Dimensions (LxWxH) 6.3 x 4.7 x 4.4"
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