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Coronado SolarMax III 90mm Solar Telescope with RichView System and BF15

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90mm f/8.9 refractor equipped with 90mm external hydrogen – alpha (H-α) filters

Refractor
Optical design
90
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
800
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 75184
Brand Meade Instruments Corp.
Warranty 5 years
EAN 0753215774791
Package size (LxWxH) 101x100x39 cm
Shipping Weight 17.64 kg
Description

The SolarMax III is a 90mm f/8.9 refractor equipped with 90mm external hydrogen – alpha (H-α) filters. The SM3 90mm has a new two-speed rack & pinion focuser, which creates a more user-friendly interaction with the telescope. The two-speed, 2” focuser has both coarse and fine focus controls allowing the user to get a more precise focus, critical for both solar imaging and visual observing.

Additionally, the SM3 90mm includes only external “True” H-α etalon filters giving higher contrast views and sharper features compared with models using smaller internal H-α etalon designs. Experience darker backgrounds, sharper features, and higher contrast with the new SolarMax III series telescope.

The patented RichView tuning technology provides additional tuning range and an overall better way of adjusting the filters bandpass. Now you can tune for the highest contrast views of your favorite solar features without sacrificing image quality.

Double Stacked models (<0.5Å bandpass) include two “True” external etalon filters. One etalon filter equipped with our patented RichView tuner and second etalon with tip-tilt tuning using Coronado’s T-Max tuner. Whether you are focusing on the solar edge or surface features in the chromosphere, the SolarMax III 90mm is the solar scope for you. Since both etalon filters are now external to the telescope, you can easily remove both filters and rear blocking filter diagonal to use the scope as a normal refractor for nighttime astronomy. It’s like having two scopes in one!

The kit includes:

  • Telescope
  • 12mm, 18mm, 25mm CEMAX eyepieces
  • CEMAX 2x Barlow lens
  • Sol Ranger™ Solar Finder
  • Vixen-style dovetail mounting rail
  • Black and gold aluminum hard carry case
Specifications
Product ID 75184
Brand Meade Instruments Corp.
Warranty 5 years
EAN 0753215774791
Package size (LxWxH) 101x100x39 cm
Shipping Weight 17.64 kg
Optical design refractor
Optical scheme achromat
Optics coating fully multi-coated
Objective lens diameter (aperture), mm 90
Focal length, mm 800
Aperture ratio f/8,9
Eyepieces 25mm Coronado CEMAX, Coronado CEMAX 12mm, Coronado CEMAX 18mm
Barlow lens 2x
Finderscope built-in Sol Ranger
Focuser 2'' rack & pinion with 10:1 fine adjustment
Additional 15mm blocking filter
Dovetail mount