Product Description
Place the Bahtinov Focus-Mask over the end of your telescope, then locate a bright star near your target, take a 3-5 second picture and view the diffraction spikes. Change your focus, take another picture and again, view your diffraction spikes. Is the center spike moving further from center? Then change the direction your focusing and try another picture. Watch the direction the spikes are moving and when the center spike passes the middle of the other two spikes, change direction and fine tune your tuning knobs until the center spike is in the middle. Your now in perfect focus.
Product Information
- SOLOMARK telescope focusing masks will take less than 1 minute to achieve perfect focus with your new mask and will mean you spend more time imaging photons rather than focusing them.
- Suit for telescopes which out diameter 58mm to 83mm.
- The masks are compatible with all types of telescope, like reflectors, catadioptric, refractors, maksutov-cassegrains.
- Masks feature 3 holes which can be attached with 3 screws to prevent the mask from slippage and allow it to remaining central.
- Light weight so you won't upset the balance on your scope.
