Description
Coronado SolarMax III 70 Solar Scope with BF10
Introducing the Coronado SolarMax III 70mm refractor, your ticket to exploring the intricate details of our closest celestial neighbor, the Sun. Compact, lightweight, and accompanied by a durable hard-shell carrying case with foam interior, this hydrogen-alpha (H-α) telescope is your go-anywhere companion, whether you’re stargazing in your backyard or chasing down the next solar eclipse!
Crafted and assembled in North America, the SolarMax III 70mm boasts a 60mm external front air-spaced etalon at its core, enabling the observation of the most captivating part of the solar spectrum — Hydrogen-alpha light (6562.8 Angstroms). With an impressive bandpass of <0.7 Angstroms (Å), this telescope delivers exceptional contrast, unveiling prominences cascading from the solar disk and a plethora of surface features including sunspots, filaments, active flare regions, plages, and surface granulation.
Safety is paramount in solar viewing, and the SolarMax III 70mm incorporates a 10mm blocking filter (BF10) positioned inside the diagonal holder beneath the eyepiece. Comprising multiple internal filters such as the Induced Transmission Filter (ITF), Long Wave Pass filter (LWP), and H-α cut-off filter, the BF10 ensures a secure viewing experience. Moreover, the RichView tuning technology by Coronado enables precise adjustment of the etalon’s wavelength bandpass, while the included T-Max Tuner further refines image quality by eliminating reflections.
But the SolarMax III 70mm isn’t confined to solar observation alone — its versatility extends to nighttime astronomy and daytime spotting. By simply replacing the front etalon with a standard star diagonal, you transform it into a 70mm wide-field doublet refractor, perfect for exploring planets, star clusters, and even brighter nebulae and galaxies. During daylight hours, it serves as an excellent spotting scope for birdwatching or admiring distant vistas.
Equipped with a backlash-free 2″ dual-speed rack & pinion focuser and a Sol Ranger Solar Finder for easy solar alignment, the SolarMax III 70mm comes complete with an 18mm CEMAX eyepiece, Vixen-style dovetail mounting rail, and a sleek black and silver aluminum hard carry case.
Whether capturing stunning solar phenomena with a camera or immersing yourself in the wonders of the night sky, the SolarMax III 70mm offers an unparalleled viewing experience. Hand-assembled and solar tested to ensure top-notch quality, this telescope is your gateway to the extraordinary sights of our Sun. Join the solar exploration journey today with the Coronado SolarMax III 70mm telescope, backed by Coronado’s commitment to safety and quality assurance.
Specifications of Coronado SolarMax III 70 Solar Scope with BF10 :
Best for viewing | Solar |
User level | Advanced |
Optical design | Refractor |
Optical diameter | 70mm |
Focal length | 400mm |
Focal ratio | f/5.7 |
Coatings | Fully multi-coated |
Eyepieces | Cemax 18.0mm (1.25″) |
Magnification with included eyepieces | 22x |
Resolving power | 1.65arc*sec |
Lowest useful magnification | 10x |
Highest useful magnification | 140x |
Highest theoretical magnification | 140x |
Limiting stellar magnitude | 11.9 |
Optical quality | Diffraction limited |
Finder scope | Sol Ranger |
Focuser | 2″ dual-speed Rack-and-pinion |
Diagonal degrees | 1.25″ 90° Blocking Filter Correct-image |
Mount type | Optical Tube without Mount |
Tube material | Aluminum |
Length of optical tube | 16.3 in. |
Weight, optical tube | 7.6 lbs. |
T-max tuner | Yes |
Additional included accessories | Vixen style dovetail bar, Black and silver hard carry case |
Other features | <0.7 angtrom bandpass, Dual-speed focuser |
Warranty | Five year |
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