The reflective disk blocks 100% of the sunlight (including the UV area) falling directly on the CCD camera in the observation of the Sun. Thanks to this, the temperature of the CCD system is lowered, which guarantees lower thermal noise. The diameter of the internal hole is 32 mm - fixing to the sleeve of the astrophotographic camera or eyepiece tube.
• thickness: 1 mm
• Outer diameter: 190 mm
• Internal diameter: 32 mm
• weight: 30 g
• designation in the manufacturer's catalog: 30A098B
(below: manufacturer's materials)