Coronado SolarMax III 90 with RichView Tuning and 30mm Blocking Filter, Double Stack

Features two external "True" H-a etalon filters giving higher contrast views.

  • Day and night astronomy
  • <0.5 Angstrom hydrogen-alpha bandpass
  • Blocking filter: 30mm
  • Aperture: 90mm
  • Etalon filter sizes: 90mm
  • Focal length: 800mm
  • Focal ratio: f/8.9
  • CEMAX eyepieces: 12mm, 18mm, 25mm
  • CEMAX 2x Barlow
  • Hard carry case
  • UK warranty
Coronado SolarMax III 90 BF30 Double Stack
  • Product code: 324014
  • Availability: In stock
  • Despatch: 2 business days
  • Retail Price: £ 7950.00
Shipping rates
England & Wales
£ 15.00
Scotland Central & South
£ 15.00
Scotland North
£ 25.00
Northern Ireland
£ 25.00
UK islands (from)
£ 50.00
European Union (from)
£ 35.00

Description

Caution: This telescope should never be used to observe the Sun without the etalon filters and blocking filter (diagonal) fitted. Otherwise, immediate and irreversible eye damage may result.

The SolarMax III is a 90mm F/8.9 refractor equipped with 90mm external hydrogen – alpha (H-a) filters. This model is double-stacked (<0.5 Angstrom) bandpass with a 30mm blocking filter. What makes the SM3 standout?

Focuser

The SM3 90mm has a 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.

External etalons

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


U.K. WARRANTY

BEGINNER

ASTRONOMY

SOLAR
▼ read more ▼

RichView tuning

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 filter's bandpass. No other commercially available H-a 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 favourite solar features without sacrificing image quality.

Day and night

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!

Double stacked

This double stacked model (<0.5 Angstrom bandpass) includes 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.

Bundled accessories

The Coronado 90mm SolarMax III series telescope with enhanced rack & pinion focuser and large external etalon is the perfect way to view the Sun! The SM3 90mm comes with 12mm, 18mm, 25mm CEMAX eyepieces, CEMAX 2x Barlow, Sol Ranger™ Solar Finder, Vixen-style dovetail mounting rail, and an all-new black and gold aluminium hard carry case (Dimensions: 68cm x 22cm x 22cm).

Carries full five year UK warranty by Opticstar Ltd on behalf of Meade Instruments Corp.

Coronado SolarMax III 90 solar telescopes.
▲ read less ▲
▼ show specification ▼
Coronado SolarMax III 90 with RichView Tuning and 30mm Blocking Filter, Double Stack
Attribute Specification
Coronado Product Code (SKU) 324014
Universal Product Code (UPC) 709942998412
Warranty 5 year UK warranty by Opticstar Ltd on behalf of Meade Instruments USA
Series SolarMax III solar telescopes
Experience Level Beginner
Optical Design Achromatic Refractor
Optical Coatings Fully Multi-Coated
Clear Aperture 90mm
Solar Filter <0.5 Angstrom hydrogen-alpha (Ha) bandpass
Etalon Sizes Two (2) 60mm, external filters
Focal Length 800mm
Focal Ratio f/8.9
Optical Elements 2
Blocking Filter 30mm, fitted inside the star diagonal
Viewfinder Sol Ranger™
Focuser Mechanism 2" Rack and Pinion with 7:1 fine adjustment
Diagonal 90 degree diagonal with 30mm solar blocking filters
Dovetail Vixen-style
Eyepieces • Coronado CEMAX 12mm (1.25")
• Coronado CEMAX 18mm (1.25")
• Coronado CEMAX 25mm (1.25")
Barlow Lens Coronado CEMAX 2x Barlow (1.25")
Carry Case Black and Gold Hard Carry Case
Dimensions: 68cm x 22cm x 22cm (26.5" x 8.66" x 8.66")
Tripod Not included
Assembled Product Weight 9.8 kg (21.6 lbs) - no hard case
Assembled Product Dimensions 80cm x 16cm x 18cm (31.2" L x 6.2" W x 7" H) - no hard case
Transit Weight & Dimensions 12 kg, 80cm x 35cm x 34cm
▲ hide specification ▲
Products
Similar telescopes
  • Product code: 324011
  • Availability: In stock
  • Despatch: 2 business days
  •  
  • Product code: 324012
  • Availability: In stock
  • Despatch: 2 business days
  •  
  • Product code: 324013
  • Availability: In stock
  • Despatch: 2 business days
  •  
Support
Documents
1.2 MB • 10 October 2019
0.1 MB • 21 October 2018
15.2 MB • 07 April 2019
0.2 MB • 15 February 2020
Videos
Astro images
News
17 January 2019

The latest SolarMax III models are fitted with full aperture external etalon filters, surpassing the performance of other designs.

5 July 2018

The latest SolarMax III models are fitted with full aperture external etalon filters, surpassing the performance of other designs.

29 June 2017

Find out why the revolutionary Coronado SolarMax II with RichView™ tuning technology brings solar viewing to a whole new level.

29 June 2017

The PST is portable and powerful at the same time. It can show prominences, active regions, filaments, as well as other surface details.

Links