Coronado SolarMax III 90 f/8.8 Solar Telescope - Double Stack 15mm

Brand: Coronado

SKU : CI-324012

- Read
Looking for a Coronado SolarMax III 90 f/8.8 Solar Telescope - Double Stack 15mm? Shop this product at Agena Astro by clicking the SHOP NOW button!
Add to Wishlist

52D158B8-B55E-4DF3-8064-D4A13DFFDDC4 Request stock alerts and we'll let you know when the item is back in stock

Got questions? Click for live chat

  • 800mm Focal Length
  • Singlestack or Doubplestack Options
  • 15mm or 30mm Blocking filter Options
  • Native 0.7Å bandpass and Double Stacked for 0.5Å bandpass

Product Details

  • Coronado has a new Flagship solar telescope, the SolarMax III 90 f/8.8 Solar Telescope. This telescope is specifically designed to maximize image quality for both Solar Imaging and visual observing. The SolarMax III 90 now offers the sharpest, highest contrast images that Coronado has to offer! It has the largest aperture and longest focal length in the SolarMax III series. It offers the highest magnification potential and clearest views. Powerful but very portable, this telescope is ideal for serious solar enthusiasts and professional research facilities

    Stacking Options

    Single Stack

    Single Stack Immage Of The Sun

    A single etalon system will provide a less than 0.7 Å bandpass which produces bright images that allow for excellent viewing of the Sun’s edge details (prominences and flares). It also provides a view of the more active features on the sun surface.

    Double Stack

    Double Stack Immage Of The Sun

    By adding an additional Etalon filter to a single stack solar telescopes (double stacking) will arrow the bandpass of the system to less than 0.5 Å. This will slightly dim the feature at the edge of the sun but will greatly enhance the contrast of the features of the suns surface. Now you will be able to see the fine details of filaments, granular structures, and active regions.

    Blocking Filter Options

    15mm Blocking Filter

    This blocking Filter is ideal for visual use with the SMIII 90. It will reduce ghost images and is ideal for focal lengths up to 1500mm. So you will be able to use a 2x Barlow for increase magnification without any issues. While a smaller 10mm blocking filter would work in this case, Coronado includes this larger option to allow the use of eyepieces with larger field-stop diameters to be used without vignetting occurring.

    30mm Blocking Filter

    The 30mm Blocking filter ideal for Imaging although it can be used for visual use. The larger opening of the filter will allow for a larger light cone to illuminate a sensor up to the size of an APS-C DSLR. The BF30 is also rated for focal lengths up to 3000mm so you ’ll be able to use 3x Barlow to Image small regions of the sun.

    Key Features

    • External EtalonsGives higher contrast views, darker backgrounds, and sharper features compared with models using smaller internal H-α etalon designs
    • Two-Speed Rack & Pinion FocuserThe 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.
    • RichView Tuning
      This patented system allows direct tuning of the primary filter etalon. Now you can tune for the highest contrast views of active regions, flares, filaments, and other surface detail, or quickly and easily re-tune for prominences on the solar limb.
    • CEMAX Eyepiece Kit
      2mm, 18mm, 25mm & 2x Barlow Lens are all included with this telescope
  • specifications

    Aperture91 mm (3.5")
    Camera/Eyepiece Connection1.25" Nosepiece / M42x0.75
    Dawes Limit1.27 arcseconds
    Focal Length800 mm
    Focal Ratiof/8.9
    Free ShippingYes
    Highest Magnification182x
    Optical DesignDoublet Refractor
    Optical DesignSolar
    Tube Length450mm
    Tube Weight17.7 lbs
    Warranty5 Year Warranty
  • included items

    • Coronado SolarMax III 90 f/8.8 Solar Telescope OTA
    • Hard Carry Case
    • 12mm CEMAX Eyepiece
    • 18mm CEMAX Eyepiece
    • 25mm CEMAX Eyepiece
    • 2x CEMAX Barlow
    • Sol Ranger Solar finder

Product Reviews