Can Baader filters be used with my Dobsonian telescope?
Dobsonian telescopes that are open frame instead of closed tube will have so much daylight spill-over that the image will be very low-contrast and quite unsatisfactory for the solar observer. Even with cloth covers or vinyl tarps, there will possibly still be too much light. Solid tube ‘scopes are the only instruments that allow a bright, high-contrast solar image.
