Coronado SolarMax 70 Telescope <0.7 Angstrom

Solarmax 70 Dedicated Telescope Package
An astronomy teachers's best friend, the SolarMax 70 telescope has been designed as a sealed unit with no removable parts other thanthe eyepiece. Combine this with it is 70mm aperture and you have a dedicated and portable H-Alpha telescope that is ideal for use byboth the experienced observer and the most novice. As the SolarMax 70 telescope is sealed no critical parts can be removed and set up is a breeze even for school children. Coronado recommends that all solar viewing be done under adult supervision to ensure safe and effective results.

The SolarMax 70 telescope is in use at universities, high schools, middle schools, and their equivalents around the world. It is actually a version of our first dedicated H-Alpha telescope, Helios I, with technological improvements. All of the telescopes in this line (Helios I, NearStar, SolarMax series) feature a unique design with an etalon smaller than the actual aperture and positioned towards the rear of the OTA. This enables us to price the 70mm telescope less than the SolarMax 60 telescope. This designcreates a bandpass of <0.8 angstroms which is slightly higher than the standard for other SolarMax series telescopes.

The Advantage of the T-Max:
Some events on the Sun,- notably active flares and coronal mass ejections (CMEs), are extremely fast moving. If such features occur on the disc of the Sun, their high velocity towards the observer results in their wavelength being Doppler shifted shorter than Ha. If the velocity is high enough, this wavelength could be outside the passband of the filter and the feature would not be observable. The T-Max allows the user to de-tune the SolarMax slightly to bring such phenomena into better visibility.

A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the Ha field of view as is the case with rear mounted filters.

The use of a special H-Alpha doublet lens designed by Dick Buchroeder (including Optimized anti-ghosting) and superb multi-layer anti reflection coatings on all surfaces delivers diffraction limited, extremely high contrast performance.

Please Note: We are only authorized to sell Coronado Products in North America