CORONADO - 5 mm blocking filter

Product description

CORONADO - 5 mm blocking filter

Coronado BF-5 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element.

Cannot be used without an SM front cell. Secondary interference filter for full disc image of the Sun for telescopes up to 500mm focal length.

In the Box:

Blockingfilter

Item condition: new and original packed



Product description

CORONADO - 5 mm blocking filter

Coronado BF-5 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element.

Cannot be used without an SM front cell. Secondary interference filter for full disc image of the Sun for telescopes up to 500mm focal length.

In the Box:

Blockingfilter

Item condition: new and original packed