Lunt - 50mm Pressure Tuned H-Alpha Telescope - B400 Blocking Filter

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Lunt Solar Systems 50mm H-Alpha solar telescope is a compact and easy to travel with solar viewing solution with the same top-quality engineering and design as their larger h-alpha telescopes. With a 4mm blocking filter and fully pressure tuned primary 50mm h-alpha filter the Lunt 50mm is perfectly configured for solar observing.

SKU: LUN-LS50THA/B400PT
Manufactured by:
Lunt Solar Systems
 

Product Description

Lunt - 50mm Pressure Tuned H-Alpha Telescope - B400 Blocking Filter

The latest Dedicated Ha (Hydrogen-alpha) solar telescope from the industry leaders at Lunt Solar Systems is a beautiful 50mm Pearl White unit that comes complete with Lunt's revolutionary Internal Pressure Tuner (True Doppler) in a Single Interference Etalon configuration.  Also included is a mandatory 4mm (B400) Blocking Filter in a Lunt Diagonal connected to a precise Helical Focuser.  Focal length measures 350mm producing an f/7 focal ratio. The measured Bandpass comes in at <0.75 Angstroms @ 656nm as equipped (single stacked), which can be lowered to <0.5 Angstroms by double stacking with the addition of an optional Lunt Solar compact, front mounted, double stack filter LS50C.  Double stacking produces greater detail and gives 3-D like appearance to the Sun's surface featuAttachment to a (user supplied) mount is facilitated by an Integrated Clamshell with a 1/4-20 tapped Base.   Lunt Solar Systems currently offers 4 blocking filter apertures for use with Lunt Solar Etalon systems. The Blocking Filter houses additional filters which are required for the safety and performance of the solar package. Lunt Solar blocking filters contain a unique filter system. Lunt can only warranty safety or performance when one their blocking filters is paired with a Lunt H-alpha filter or telescope.

 Focal Length Specifications (Visual Use): 

B600 : For visual use on telescopes with focal lengths up to 600mm
• B1200: For visual use on telescopes with focal lengths up to 1200mm
• B1800: For visual use on telescopes with focal lengths up to 1800mm
• B3400: For visual use on telescopes with focal lengths up to 3400mm (only available in straight-thru design)

 Focal Length Specifications (Imaging Use):

 When imaging with a Lunt Solar System it is recommended that the user opt for the next larger Blocking Filter than that recommended for Visual use. This is due to the fact that most Imaging Systems require additional “backfocus”. This requires that the Blocking Filter be moved further up the light cone. As a result the aperture of the Blocking filter needs to be larger to allow for the larger cone size. 

• B600: For imaging use on telescopes with focal lengths up to 400mm
• B1200: For imaging use on telescopes with focal lengths up to 600mm
• B1800: For imaging use on telescopes with focal lengths up to 1200mm
• B3400: For imaging use on telescopes with focal lengths up to 1800mm (only available in straight-thru design)

Lunt Solar Blocking Filter Housing Options

  •  1.25″ or 2″ diagonal with T2 connection
  •  2″ extension tube with T2 and 2” connection, aka “straight-thru”


Lunt Solar LS50THa Features:

  • Type: Single Interference Etalon
  • Tuning: Internal Pressure Tune (Doppler True Tuning)
  • Aperture: 50mm
  • Focal Length: 350mm
  • F Ratio: F7
  • Bandpass: <0.75 Angstroms @ 656nm
  • Focuser: Helical Focuser
  • Mounting: Integrated clamshell style with 1/4-20 tapped base
  • Color: Pearl White with Black and Red accents
  • Diagonal: B400 Blocking Filter (standard) or B600 Blocking Filter (upgrade)
  • Skill level: Beginner on up

 

 

                                        Photo: Coronal loops on the sun

                                                                                    CORONAL LOOPS

 

 

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Specifications

Name Lunt - 50mm Pressure Tuned H-Alpha Telescope - B400 Blocking Filter
Manufacturer Lunt Solar Systems
Model LUN-LS50THA/B400PT
Aperture 50mm
Bandwidth <0.75 Å @ 656nm
Finderscope None
Focal Length 350 mm
Focuser Helical
Optical Coatings Multi Layer
Star Diagonal Internal Blocking Filter

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