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Lunt - Blocking Filter B1800s 1.25 " - in extension tube with T2 and 2 " connection

  • Lunt - Blocking Filter B1800s 1.25 " - in extension tube with T2 and 2 " connection
Price:
$499.00
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New
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Product Description

 1.25" Lunt Solar Systems B1800 Blocking Filter in extension tube with T2 and 2" connection

For best performance, be sure to pair your Lunt Solar Systems h-Alpha filter with the proper sized Lunt blocking filter.

A Blocking Filter is absolutely required for the safety and performance of telescopes for solar observing! The blocking filter will be mounted at the eyepiece-side of the telescope, and protect against the dangerous radiation from the sun.
The Blocking Filter B600 is for maximum focal length 600mm, B1200 is for 1200mm, B1800 is for 1800mm and the B3400 is for 3400 mm maximum focal length. This is the focal length of the telescope for which that particular blocking filter will provide a full disk image of the Sun. Choose your blocking filter carefully for your telescope's focal length!
Lunt Solar Systems blocking filters contain a unique filter system. Lunt can only warranty safety or performance when the correct blocking filter is paired with a Lunt Solar Systems Etalon system.

 

Name Lunt - Blocking Filter B1800s 1.25 " - in extension tube with T2 and 2 " connection
Manufacturer Lunt Solar Systems
Model B1800S1

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