Lunt Solar Systems currently offers 4 blocking filter apertures for use with our Etalon systems.
The Blocking Filter houses additional filters which are required for the safety and performance of the
solar package.
*Blocking filter required on all Solar Systems.
We are currently offering the B600, B1200, and B1800 in a 1.25" diagonal format with fixed filter.
The B3200 is being offered in a 2" straight thru with a tiltable filter mechanism.
The number after the "B" refers to the maximum focal length of telescope for which that particular
blocking filter will provide a full disk image of the Sun. A blocking filter larger than that required
to achieve the full disk image may result in image "ghosts" at the edge of the field of view.
Lunt Solar blocking filters contain a unique filter system. We can only warranty safety or performance
when blocking filter is paired with a Lunt Solar System.
