Items 26 - 27 of 27
- This Coronado Adapter Ring is required to double stack on an external primary Etalon for SM40.
- Coronado's 40 mm Double Stack Adapter Ring is black in color.
- The telescope and double stacking filters are sold separately.
- This adapter helps with double stacking which reduces 0.7 angstrom to 0.5 angstrom.
- This Barlow is meant to work with Coronado's CEMAX 12mm, 18mm and 25mm focal length eyepieces.
- Using this Barlow will increase the magnification Coronado CEMAX H-alpha eyepieces by two.
- The coatings of this Coronado Barlow are optimized to enhance contrast and minimize glare.
- A cap is included with this silver and gold Barlow.