SolarMax III 70mm Telescope Double Stack with BF10

Fully Integrated 70mm f/5.7 H-alpha Telescope - 400mm Focal Length Includes Coronado’s patented RichView tuning system Sol Ranger Viewfinder Black and Gold Hard Carry Case (Dimensions: 26.5" x 8.66" x 8.66") 10mm Blocking Filter Double-Stack for <0.5Å Bandpass Features Introducing Meade’s new and improved Coronado SolarMax III (SM3) Hydrogen – alpha solar telescopes! The SolarMax III is a 70mm F/5.7 refractor equipped with 60mm external hydrogen – alpha (H-α) filters. Available in both single-stacked (<0.7Å) and double-stacked (<0.5Å) bandpasses and either 10mm or 15mm blocking filters. What makes the SM3 standout? The SM3 70mm 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 SM3 70mm includes only external “True” H-α etalon fil