LUNT Blocking Filters

Blocking Filters in various sizes, usable with the Lunt Solar Systems H-alpha filters and telescopes.

LUNT various blocking filters are also available separately, alternatively installed in 90° star diagonals or straight extension tubes for 1.25" or 2" focusers. The blocking filters could be combined arbitrary with the LUNT H-alpha telescopes and filters.
The B600 can be used visually for telescopes up to 540 mm focal length, the B1200 up to 1080 mm, the B1800 up to 1620 mm, and the B3400 up to 3060 mm focal length. If you want to image the sun, it will be better to use the next larger blocking filter.

Please note that these blocking filters are not complete H-alpha systems. The sun can be observed only together with an additional LUNT H-alpha Etalon filter system!

• For LUNT H-alpha Etalon-System
• Blocking filter for 1.25" and 2" focuser
• In 90° star diagonal (d) or straight extension tube (s)
• B600 (up to 540mm focal length)
• B1200 (up to 1080mm focal length)
• B1800 (up to 1620mm focal length)
• B3400 (up to 3060mm focal length)