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

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Achromatic refractor. Objective lens diameter: 90mm. Focal length: 800mm

Refractor
Optical design
90
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) 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 75628
Brand Meade Instruments Corp.
Warranty 5
EAN 0709942998399
Package size (LxWxH) 39x100x101
Shipping Weight 19.596
Description

Introducing Meade’s new and improved Coronado SolarMax III (SM3) Hydrogen – alpha solar telescopes!

The SolarMax III is a 90mm f/8.9 refractor equipped with 90mm external hydrogen – alpha (H-α) filters. Available in both single-stacked (<0.7Å) and double-stacked (<0.5Å) bandpasses and either 15mm or 30mm blocking filters. What makes the SM3 standout?

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 SM3 90mm also includes Coronado’s patented RichView tuning allowing direct tuning of the primary etalon filter. The patented RichView tuning technology provides additional tuning range and an overall better way of adjusting the filters bandpass. No other commercially available H-α telescope can provide the tuning range and accuracy of the new SolarMax III telescope. 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 night time astronomy. It’s like having two scopes in one!

The new Coronado 90mm SolarMax III series telescope with enhanced rack & pinion focuser and large external etalon(s) are now the perfect way to view the Sun! The SM3 90mm comes with an included 12mm, 18mm, 25mm CEMAX eyepieces, CEMAX 2x Barlow, Sol Ranger solar finder, Vixen-style dovetail mounting rail, and an all-new black and gold aluminum hard carry case (dimensions: 67.3x22x22cm).

Features:

  • Fully integrated 90mm H-alpha telescope
  • 800mm focal length – f/8.9
  • Includes Coronado’s patented RichView tuning system
  • Sol Ranger viewfinder
  • 15mm blocking filter
  • Double-stack for <0.5Å bandpass
  • Black and gold hard carry case included to protect your investment
Specifications
Product ID 75628
Brand Meade Instruments Corp.
Warranty 5
EAN 0709942998399
Package size (LxWxH) 39x100x101
Shipping Weight 19.596
Optical design refractor
Optical scheme achromat
Optics coating fully multi-coated
Objective lens diameter (aperture), mm 90
Focal length, mm 800
Highest practical power, x 180
Aperture ratio f/8.9
Eyepieces 25mm Coronado CEMAX, Coronado CEMAX 12mm, Coronado CEMAX 18mm
Barlow lens 2x
Finderscope special solar Sol Ranger
Focuser 2", rack & pinion, with 7:1 fine adjustment
Solar filter included
Blocking filter 15mm – 90 degree diagonal mirror with solar filters
Bandwidth limit 656.28nm
Bandwidth, Angstrom <0.5
Optical tube mounting mode dovetail plate (Vixen standard)
User level experienced users, professionals
Assembly and installation difficulty level easy
Observed object planets of the Solar System, terrestrial objects, the Sun
Extended kit
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