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Lunt B3400 Blocking-Filter in 2 inch extension tube
LSS_0553013
€3,498.00
Tax included
- Blocking-filter in straight extension tube
- For combination with H-alpha telescopes or filters
- For telescopes up to 3060mm focal length and 2 inch focuser
- Eyepiece side with 1.25 and 2 inch eyepiece connection
- Cannot be used stand-alone, only with H-Alpha systems!
Do you have a question about this product?
Blocking-filter in straight extension tube, for telescopes up to 3060mm focal length. Can only be used together with a Lunt H-alpha filter, or with a Lunt H-alpha telescope!
Lunt Solar Systems offers blocking-filters in different sizes, and alternatively in 90° star-diagonal housings or straight extension tubes. You can choose what blocking-filter you will use at your Lunt H-alpha Etalon system.
The B3400 is installed in a straight extension tube, for 2 inch (50.8mm) focuser on the telescope side, and with 2 inch eyepiece connection and 1.25 inch (31.7mm) adapter on the eyepiece side. The B3400 can be used at Lunt H-alpha systems, if the used telescope has up to 3060mm focal length.
The blocking-filter can not be used without additional H-alpha filter system from Lunt Solar Systems! Blocking-filters are absolutely required for the safety and performance of H-alpha telescopes for solar observing. Lunt Solar Systems blocking-filters contain a unique filter system. We can only warranty safety or performance, if blocking-filter is paired with a H-alpha filter or H-alpha telescope of Lunt Solar Systems.
Features
- Blocking-filter only usable at additional H-alpha filter system
- Filter diameter: 34mm
- Usable at telescopes up to 3060mm focal
- In straight extension tube
- For 2 inch focuser
- Connection for 2 inch eyepieces
- Adapter for 1.25 inch eyepieces
Scope of Delivery
- Blocking-filter B3400 in 2 inch straight extension tube
- Adapter for 1.25 inch eyepieces
Technical Data
| General Technical Data | |
|---|---|
| Eyepiece Barrel Diameter | 50.8 mm |
| Extended warranty | 5 years |
| Dimensions and Weight | |
| Net weight (without access.) | 320 g |
- Filter Type
- Solar
- Solar Filter Type
- Blocking Filter*~H-alpha
Established in the USA in the 2000s, Lunt Solar specializes in solar telescopes and filters for safe solar observation. Their innovative designs cater to solar enthusiasts, providing unique access to solar phenomena through high-quality instruments.
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