Coronado | SolarMax III (SMIII) Series

SHOP HERE: Coronado SolarMax III 70mm & 90mm Hydrogen – alpha Solar Telescopes! The SolarMax III (SMIII) is a 70mm f/5.7 refractor equipped with 60mm external hydrogen – alpha filters. Available in both single-stacked and double-stacked and either 10mm or 15mm blocking filters. The SMIII 90mm is a 90mm f/8.9 refractor equipped with 90mm external hydrogen - alpha filters. Available in either 15mm or 30mm blocking filters. What makes the SMIII standout? The SMIII has a new 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. Additionally, the SMIII includes only external “True” H-α etalon filters giving higher contrast views and sharper features compared with models using smaller internal H-α etalon designs. Experience darker b