Coronado SolarMax II 60 60mm f/6.6 H-alpha Solar Telescope (15mm Blocking, OTA Only)

Coronado SolarMax II 60 60mm f/6.6 H-alpha Solar Telescope (15mm Blocking, OTA Only)

Coronado SolarMax II 60 60mm f/6.6 H-alpha Solar Telescope (15mm Blocking, OTA Only)

B&H # COS260BF15 MFR # SMT60-15
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Product Highlights

  • Single Stacked H-Alpha Internal Etalon
  • Patented RichView Tuning
  • Reveals Prominences in High Contrast
  • 400mm f/6.6 Solar Viewing Refractor
  • 15mm Secondary Rear Blocking Filter
  • 0.7Å Hydrogen-Alpha Wavelength
  • Sol Ranger Solar Finder
  • 1.25" Helical Focuser, 25mm Eyepiece
  • Clamshell Mounting Ring
  • OTA Only - Mount and Tripod Required
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This item is nonreturnable

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

Coronado's single-etalon SolarMax II 60 60mm f/6.6 H-alpha Solar Telescope is calibrated for the hydrogen-alpha wavelength, and comes equipped with their RichView tuning system. This system allows direct adjustment of the primary etalon filter enabling it to be tuned up or down from the 6562.8Å wavelength for highlighting specific zones of the chromosphere and to compensate for Doppler shift that can pull prominences and other features off-band and affect views. Tuning areas of concentration back on-band, allows for higher-contrast views of prominences on the solar limb.

Complementing the primary etalon filter is a rear 90° 15mm blocking filter. This secondary filter further isolates the H-alpha wavelength for better views. While a smaller blocking filter would suffice, Coronado includes this larger option to allow the use of eyepieces with larger field-stop diameters to be used without vignetting occurring, as might be seen with smaller filters, which would interfere with the field of view.

The SolarMax II is offered here without a mount or tripod, but comes with a wide clamshell mounting ring that is outfitted with a 1/4"-20 socket for attachment onto many photo/video/field tripods or on piggyback rigs, or an optional Vixen-style dovetail plate is available for use with conventional alt-az, EQ, or motorized telescope mounts.

Optics
  • 60mm aperture
  • f/6.6 focal ratio
  • 400mm focal length
  • Refractor-style lens configuration
Solar Filter
  • Designed for viewing in the hydrogen-alpha wavelength (6562.8Å)
  • Reveals prominences in high contrast; and under the right conditions, surface texture
  • Internal primary etalon blocking filter
  • Rear 15mm diagonal secondary blocking filter allows for the use of eyepieces with larger field stop diameters without vignetting in the field of view
  • Proprietary RichView tuning system allows the internal etalon to be tuned for Doppler compensation or to highlight specific zones
  • Thermal Stability: 0.005Å/°C
Included Cemax Eyepiece
  • 1.25" diameter barrel
  • 25mm focal length yields 16x
  • 52° field of view
  • Fold-down rubber eyecup for use with or without eyewear
  • Designed specifically for use at H-alpha wavelengths
  • 20mm eye relief
Use and Handling
  • 1.25" diameter drawtube
  • Helical focuser with easy-to-use focus collar
  • Sol Range solar viewfinder enables safe aiming of the OTA at the Sun
  • Included carrying case keeps OTA safe during transportation and storage
Mounting
  • Mount and tripod required
  • Mounting ring allows the relative position of the OTA to the mount to be adjusted for comfort and limit obstruction
  • Clamshell mounting ring with 1/4"-20 mount for using photo/video/field tripods or piggyback rigs
  • Optional Vixen-style dovetail plate available for use with conventional telescope mounts
UPC: 709942996227
In the Box
Coronado SolarMax II 60 60mm f/6.6 H-alpha Solar Telescope (15mm Blocking, OTA Only)
  • T-Max 60 - Doppler Tuning Unit
  • SolarMax 60 Filter
  • Cemax 25mm Eyepiece
  • 90° 15mm H-Alpha Blocking Filter (1.25")
  • Sol Ranger Solar Viewfinder
  • Clamshell Mounting Rings
  • Travel Case
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description
    Aperture 60 mm
    Focal Length 400 mm
    Focal Ratio f/6.6
    Bandwidth Hydrogen-alpha, 6562.8 Å
    Thermal Stability 0.005 Å/°C
    Blocking 15 mm
    Finderscope Sol Ranger
    Mount Clamshell ring with 1/4"-20 mount
    Length 16.75" / 42.5 cm
    Weight 6.0 lb/ 2.7 kg
    Packaging Info
    Package Weight 11.85 lb
    Box Dimensions (LxWxH) 28.1 x 11.8 x 9.9"
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