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Lunt LS60THADS50/B600C H-Alpha solar telescope

Lunt LS60THADS50/B600C H-Alpha solar telescope

Lunt LS60THADS50/B600C H-Alpha solar telescope features 60 mm lens, 0.75A Etalon filter, 50 mm double stack filter 0.55A, 500 mm focal length, B600 blocking filter and Crayford-type focuser.

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Lunt LS60THADS50/B600C H-Alpha solar telescope

Lunt

LT-0551209

New product

Lunt LS60THADS50/B600C H-Alpha solar telescope features 60 mm lens, 0.75A Etalon filter, 50 mm double stack filter 0.55A, 500 mm focal length, B600 blocking filter and Crayford-type focuser.

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3 415,00 €

Ordered upon request

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LUNT LS60THaDS50/B600C H-alpha solar telescope

Complete H-alpha solar telescope with 60mm aperture and additional 50mm double-stack filter system. The telescope can be used with <0.75 Angstrom bandwidth or with <0.55 Angstrom bandwidth.
With B600 blocking-filter, and Crayford focuser.

This telescope will be delivered with two matched Etalons, a internal Etalon and a external. The LS60THaDS50 could be used only with the internal H-alpha filter at <0.75 Angstrom and a aperture of 60mm, or together with the front mounted external H-alpha filter at <0.55 Angstrom bandwidth and 50mm aperture.

By reducing the bandwidth from estimated 0.75 Angstrom to 0.5 Angstrom more details on the solar surface will become visible. Adding a second Etalon to an existing Etalon is not quite as simple as it may seem. Both Etalons need to be brought on line (matched) and both need to be adjustable (Tuning) such that all ghosts images could be eliminated. Ideally the transmission curves should overlap perfectly when on band to provide for the best possible resolution and contrast. Both etalons in this system will be matched at the factory in order to provide a system that is both optimized for performance and the elimination of ghosting.

Blocking-filter is the B600. The B600 is good for visual solar observing. Also solar imaging is possible by cameras with small CCD chip. We recommend a LS60THa with B1200 blocking-filter by using cameras with middle or large sized CCD chips.
The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25" eyepieces and with a T2 camera connection.

Fine adjustment is achieved with a Crayford style focuser with 10:1 reduction.

Technical data:
• Aperture: 60mm or 50mm
• Focal length: 500mm
• Bandwidth: <0.75 Angstrom or <0.55 Angstrom
• Tuning: tiltable Etalons
• Blocking-filter: B600 with 1.25" and T2 connection
• Focuser: Crayford-style with 10:1 reduction
• Tube-ring with 1/4-20 tapped base (standard thread for photo-tripods)
• Weight: 3.6kg
• Length: 46cm

Delivered by order:
• LS60THa H-alpha telescope with internal Etalon, and 60mm aperture
• External 50mm double-stack Etalon LS50FHa
• B600 blocking-filter in star-diagonal
• 2" Crayford focuser
• Tube ring with 1/4-20 connection for mounting on photo-tripods
• Transport case
• Instruction manual

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