(204)

Top Highlights

  • Safe Solar Viewing and Photography
  • For Lenses, Telescopes, and other Optics
  • 12312-2 ISO-Certified SOLARLITE Film
  • Fits Outside Diameters from 50-69mm
  • 50mm Clear Filter Aperture
  • Spring-Folded Design Holds In Place

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Pieces

(189)

Top Highlights

  • Safe Solar Viewing and Photography
  • For Lenses, Telescopes, and Binoculars
  • 12312-2 ISO-Certified SOLARLITE Film
  • Fits Outside Diameters from 50-69mm
  • 50mm Clear Filter Aperture
  • Spring-Folded Design Holds In Place

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You Pay: $22.95

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Top Highlights

  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Chromosphere Viewing
  • Use Canon Lenses for Solar Imaging
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No OTA Aperture Limitations
  • 5 VDC, 1.5A micro-USB Port
  • 1/4"-20 Tripod and Vixen Dovetail Plate
  • Does Not Support All Lens Functions

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Price: $1,295.00

Instant Savings: $129.50

Offer ends: Dec 15 '17 at 4:15 pm ET ?

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Top Highlights

  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Chromosphere Viewing
  • Use Astronomical OTAs for Solar Viewing
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.3x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • Best Performance with f/4-f/8 Refractors
  • No OTA Aperture Limitations
  • 5 VDC, 1.5A micro-USB Port

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(1)

  • Fits All Quark Models
  • Enables the Use of 2" Eyepieces
  • Brass Compression Ring Protects Eyepiece

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Top Highlights

  • Tuned for Chromosphere Viewing
  • 80mm Achromatic Doublet Refractor
  • 1400mm Focal Length, f/17.5 Focal Ratio
  • Chromosphere Quark H-alpha Solar Filter
  • ±0.5Å Wing Shift Tuning
  • Two-Element Telecentric 4.3x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • Sturdy and Precise Helical Focuser
  • Bullet Solar Finder, Hard Case
  • OTA Only, Mount and Tripod Required

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  • Adapt T-Mount for Canon EF Cameras
  • Light and Strong Anodized Aluminum

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Price: $34.50

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Top Highlights

  • Designed for Spotting Scopes
  • Fits 1.25" Eyepiece Holders
  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Chromosphere Viewing
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.3x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No Aperture Limitations, ERF Recommended
  • 5 VDC, 1.5A micro-USB Port

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Expected availability: 7-14 business days

Price: $1,295.00

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Top Highlights

  • Enables Camera Control via Windows PC
  • Compatible with Canon and Nikon DSLRs
  • Script Wizard to Pre-Program Exposures
  • Set Shutter Speed/ISO/Aperture/File Type
  • Camera Actions Can Be Timed for Events
  • For Solar Eclipse, Mercury/Venus Transit
  • Leaves You Free to Observe the Skies
  • Compatible with Windows XP through 10

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  • Original Manufacturer Replacement Part
  • 5 VDC, 1.8 A Output
  • Input: 110-220 VAC
  • Set of International Outlet Plugs

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Top Highlights

  • Native 0.5x Focal Reducer
  • 0.33x Reduction with 20mm Extension Tube
  • Four-Element Lens Design in Two Groups
  • Produces Wider Field of View for Imaging
  • 36mm clear aperture
  • Requires Camera-Specific T-Mount

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Price: $285.00

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Top Highlights

  • Use for Solar Photography
  • Limits Newton's Rings Interference
  • Changes Angle of Incidence up to 5°
  • Recommended for Long Focal Ratios
  • Maximum Camera Weight: 7.7 lb

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Top Highlights

  • For Use on Refractor and Maksutov OTAs
  • Reduces Heat Load on Filter Assembly
  • Absorbs or Reflects UV and/or IR Light
  • For H-alpha, Sodium, Helium D3 Filters
  • Inside Diameter of Cap: 15 cm (5.905")

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Expected availability: 7-14 business days

You Pay: $862.00

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Best seller

(99)

Top Highlights

  • Safe Solar Viewing and Photography
  • For Lenses, Telescopes, and other Optics
  • 12312-2 ISO-Certified SOLARLITE Film
  • Fits Outside Diameters from 85-99mm
  • 90mm Clear Filter Aperture
  • Spring-Folded Design Holds In Place

In Stock

You Pay: $24.95

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Top Highlights

  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Chromosphere Viewing
  • Use Nikon Lenses for Solar Imaging
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No OTA Aperture Limitations
  • 5 VDC, 1.5A micro-USB Port
  • 1/4"-20 Tripod and Vixen Dovetail Plate
  • Does Not Support All Lens Functions

In Stock

Price: $1,295.00

Instant Savings: $129.50

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $1,165.50

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Top Highlights

  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Prominence Viewing
  • Use Nikon Lenses for Solar Imaging
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No OTA Aperture Limitations
  • 5 VDC, 1.5A micro-USB Port
  • 1/4"-20 Tripod and Vixen Dovetail Plate
  • Does Not Support All Lens Functions

In Stock

Price: $1,295.00

Instant Savings: $129.50

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $1,165.50

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Top Highlights

  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Prominence Viewing
  • Use Canon Lenses for Solar Imaging
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No OTA Aperture Limitations
  • 5 VDC, 1.5A micro-USB Port
  • 1/4"-20 Tripod and Vixen Dovetail Plate
  • Does Not Support All Lens Functions

In Stock

Price: $1,295.00

Instant Savings: $129.50

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $1,165.50

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  • Fits Most Nikon Cameras and Lenses
  • Converts for Solar Viewing or Imaging
  • Two 6mm Extension Rings
  • 1/4"-20 Tripod and Vixen Dovetail Mounts

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  • Fits Most Canon Cameras and Lenses
  • Converts for Solar Viewing or Imaging
  • Two 6mm Extension Rings
  • 1/4"-20 Tripod and Vixen Dovetail Mounts

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Price: $315.00

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Top Highlights

  • 80mm Achromatic Doublet Refractor
  • Conventional Nighttime Telescope
  • 480mm Focal Length, f/6 Focal Ratio
  • 2" Hybrid Focuser, Dielectric Diagonal
  • Sodium-D Solar and 12mm Blocking Filters
  • View Active Regions, Plage, Granulation
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Vixen-Style Dovetail Plate
  • OTA Only - Mount and Tripod Required

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Expected availability: 7-14 business days

You Pay: $1,750.00

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Top Highlights

  • For Solar Observation in Multiple Bands
  • Anti-Reflection Coated BK7 Glass
  • Highly-Precise Electronic Tuning
  • 0.4Å Hydrogen-Alpha Filter
  • 0.7Å Hydrogen-Alpha Filter
  • 0.3Å Helium D3-Line Filter
  • 5Å Calcium H-Line Filter
  • Recommended for Use Between f/27 - f/35
  • RS-232 Serial Port for Computer Control
  • Runs on 12 VDC Power

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Expected availability: 2-4 weeks

You Pay: $41,342.50

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Top Highlights

  • Tuned for Chromosphere Viewing
  • 80mm Achromatic Doublet Refractor
  • 1400mm Focal Length, f/17.5 Focal Ratio
  • Prominence Quark H-alpha Solar Filter
  • ±0.5Å Wing Shift Tuning
  • Two-Element Telecentric 4.3x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • Sturdy and Precise Helical Focuser
  • Bullet Solar Finder, Hard Case
  • OTA Only, Mount and Tripod Required

In Stock

Price: $2,695.00

Instant Savings: $700.00

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $1,995.00

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  • Adapt T-Mount for Nikon Cameras
  • Light and Strong Anodized Aluminum

Special Order

Expected availability: 7-14 business days

Price: $34.50

Instant Savings: $6.90

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $27.60

View Cart
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Top Highlights

  • Designed for Spotting Scopes
  • Fits 1.25" Eyepiece Holders
  • 656nm H-Alpha Filter with 12mm Blocking
  • Tuned for Prominence Viewing
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.3x Barlow Lens
  • Optical Coatings Tuned to H-Alpha Band
  • No Aperture Limitations, ERF Recommended
  • 5 VDC, 1.5A micro-USB Port

In Stock

Price: $1,295.00

Instant Savings: $219.50

Offer ends: Dec 15 '17 at 4:15 pm ET ?

You Pay: $1,075.50

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