Stepless Variable Diaphragm for D-ERF Filters | Optimize Solar Observation Finderscope By maintaining a stable operating

By maintaining a stable operating temperature

especially artificial mercury and sodium lamps

DARK mode to disable all of the LEDs on the EAGLE and much more

In order to solve the awkwardness of carrying around your astrograph when you engage in field astrophotography

Stepless Variable Diaphragm for D-ERF Filters | Optimize Solar Observation Finderscope By maintaining a stable operatingSteplessly Variable White Anodized Diaphragm for D ERF Filters Optimize your solar observations with the steplessly adjustable diaphragm, specially designed for Baader Planetarium D ERF filters. This white anodized, heat reflecting diaphragm can be adjusted from 13mm to 113mm, allowing for precise control over telescope aperture while observing with H alpha filters from Solar Spectrum and other brands. Key Features Stepless Adjustment: Easily adjust