Coronado SolarMax III 70 Solar Scope with BF10
- Fully integrated 70mm f/5.7 H-alpha telescope - 400mm focal length
- Includes Coronado's patented RichView tuning system
- Sol Ranger Viewfinder
- 10mm blocking filter and <0.7Å bandpass
- Black and silver hard carry case (dimensions: 27.8" x 10.12" x10.2")
This Coronado 70mm F/5.7 refractor is equipped with a single stack 60mm external hydrogen - alpha (H-α) filter at <0.7Ã… bandpass and a 10mm blocking filter. What makes the SM3 standout? Read on!
Designed and manufactured in North America.
The SM3 70mm has a new two-speed rack & pinion focuser. This 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 an external "True" H-α etalon filter giving higher contrast views and sharper features compared with models using smaller internal H-α etalon designs. Experience darker backgrounds, sharper features, and higher contrast with the new SolarMax III series telescope.
The SM3 70mm also includes Coronado's patented RichView tuning allowing direct tuning of the primary etalon filter. The patented RichView tuning technology provides additional tuning range and an overall better way of adjusting the filters bandpass. Now you can tune for the highest contrast views of your favorite solar features without sacrificing image quality.
Whether you are focusing on the solar edge or surface features in the chromosphere, the SolarMax III 70mm is the solar scope for you. Since the etalon filter is now external to the telescope, you can easily remove both the filter and and the rear blocking filter diagonal to use the scope as a normal refractor for night time astronomy. It's like having two scopes in one!
The new Coronado 70mm SolarMax III telescope with enhanced rack & pinion focuser and large external etalon is now the perfect way to view the Sun! The SM3 70mm comes with an included 18mm CEMAX eyepiece, Sol Ranger Solar Finder, Vixen-style dovetail mounting rail, and an all-new black and silver Aluminum hard carry case (dimensions 27.8" x 10.2" x 10.2"). This very high quality 70mm solar telescope features an 400mm focal length, f/5.7 focal ratio, and 10mm blocking filter.
CAUTION: Never look at the Sun, either directly or through a telescope, without a professionally made protective solar filter installed that completely covers the front of the instrument, or permanent eye damage could result.
- Best for viewing
- User level
- Optical design
- Optical diameter
- Focal length
- Focal ratio
- Fully multi-coated
- Cemax 18.0mm (1.25")
- Magnification with included eyepieces
- Resolving power
- Lowest useful magnification
- Highest useful magnification
- Highest theoretical magnification
- Limiting stellar magnitude
- Optical quality
- Diffraction limited
- Finder scope
- Sol Ranger
- 2" dual-speed Rack-and-pinion
- Diagonal degrees
- 1.25" 90° Blocking Filter Blocking Filter
- Mount type
- Optical Tube without Mount
- Tube material
- Length of optical tube
- 16.3 in.
- Weight, optical tube
- 7.6 lbs.
- T-max tuner
- Additional included accessories
- Vixen style dovetail bar, Black and gold hard carry case
- Other features
- <0.7 angtrom bandpass, Dual-speed focuser
- Five year