Coronado Ca-K 70mm Telescope, with Sol Ranger

This model telescope is based on the Coronado popular SolarMax 70 telescope design and its mechanical functions remain largely the same. However, we have developed a filter system for this unique instrument that allows for the standard production of a Coronado Calcium K telescope.

This instrument focuses on the transmission line of CaK centered at 393.4 nanometers. The thermally stable interference filters allow you to view the chromospheric network of ionized calcium emissions that are created when supergranualtion cells sweep through magnetic fields where they collect and strengthen. This emission line will not be visible by eyeto all observers and the primary use of the SolarMax 70 CaK telescope is for imaging. What you will capture with this new instrument are plage, active regions, and magnetic storms in a layer of ionized calcium gas that appears in a violet/blue hue. This layer of gas is a cooler and lower level of the Chromosphere than one observes thru our H-Alpha filters and provides new information on solar activity and weather.

Continuing our obsession with safety, the SolarMax 70 CaK features full blocking IR to FUV at 10^-5 or better. Thermal stability better than 0.05A / degree C means you will not need any power to keep the optical interference filters on band. As with all

Coronado products you can be assured of safety, quality, value and superior performance. This new telescope has the exact dimensions and mechanical performance as our SolarMax 70 telescope in H-Alpha. binoviewers are unlikely to work with the telescope at this time and the SolarMax 70 CaK has been designed with imaging as its primary purpose. CCD, DSLR, and most digital formats will be compatible with the SolarMax 70 CaK. Some will require adaptors that Coronado does not provide but are the same as ones used for nighttime imaging.

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