H-alpha blocking filter

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H-alpha blocking filter

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H-alpha Blocking Filters

Blocking filters are used behind the primary lens and offer the same protective effect as ERF filters in front of the lens. In various configurations, they are essential for safe Sun observation.

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Picture of LUNT B1200d2 Blocking-Filter in 2 inch zenith mirror diagonal

LUNT B1200d2 Blocking-Filter in 2 inch zenith mirror diagonal

For free combination with a Lunt-Solar-Systems H-alpha solar-telescope or -filter

1299.00 € 1169.00 €

Estimated delivery time : 3-4 days

Picture of LUNT B1800d2 Blocking-Filter in 2 inch zenith mirror diagonal

LUNT B1800d2 Blocking-Filter in 2 inch zenith mirror diagonal

For free combination with a Lunt-Solar-Systems H-alpha solar-telescope or -filter

1999.00 € 1799.00 €

Estimated delivery time : 3-4 days

Picture of LUNT B1800s Blocking-Filter in extension tube

LUNT B1800s Blocking-Filter in extension tube

For free combination with a Lunt-Solar-Systems H-alpha solar-telescope or -filter

1999.00 € 1799.00 €

Estimated delivery time : 3-4 days

Picture of LuntSolarSystems - Blocking Filter B1200 1,25'' - in star diagonal with T2 connection

LuntSolarSystems - Blocking Filter B1200 1,25'' - in star diagonal with T2 connection

1299.00 € 1169.00 €

Estimated delivery time : 3-4 days

Picture of LuntSolarSystems - Blocking Filter B3400s 2'' - in extension tube with T2 and 2'' connection

LuntSolarSystems - Blocking Filter B3400s 2'' - in extension tube with T2 and 2'' connection

3399.00 € 3059.00 €

Estimated delivery time : 1 week

Picture of LuntSolarSystems - Blocking Filter B600 1,25'' - in Star diagonal with T2 connection

LuntSolarSystems - Blocking Filter B600 1,25'' - in Star diagonal with T2 connection

699.00 € 629.00 €

Estimated delivery time : 3-4 days

Picture of LuntSolarSystems - Blocking Filter B600 2'' - in extension tube with T2 and 2'' connection

LuntSolarSystems - Blocking Filter B600 2'' - in extension tube with T2 and 2'' connection

The B600 is for maximum focal length 540mm, B1200 is for 1080mm, B1800 is for 1620mm and the B3400 is for 2880 mm maximum focal length.

699.00 € 629.00 €

Estimated delivery time : 4-8 weeks