Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope and B400 Blocking Filter Kit

Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope and B400 Blocking Filter Kit

B&H # LU50HATB400K (B&H Kit)
Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope and B400 Blocking Filter Kit

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Product Highlights

  • 50mm Dedicated H-Alpha Solar Telescope
  • <0.75 Angstrom Bandpass
  • True Doppler Tuning
  • 90° Diagonal Blocking Filter
  • iOptron CubePro GoTo Alt-Az Mount
  • Compact Design, 8 lb Payload
  • Go2Nova 8401 Hand Controller
  • Backlash Compensation and PEC
  • 110 VAC Adapter or Eight AA Batteries
  • 1.25" Stainless Steel Adjustable Tripod
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Mount Options: OTA, GoTo Mount, Tripod

OTA Only OTA, GoTo Mount, Tripod

Blocking Filter: B400 Blocking Filter

B400 Blocking Filter B600 Blocking Filter

More on the Way

SAFETY FIRST: Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic. For direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder, ensure your filter is ISO 12312-2 (also written as ISO 12312-2:2015) certified. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.

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Lunt Solar Systems LS50THa overview

  • 1Description

B&H put together this Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope Kit to give you all you need to start observing the Sun. It includes a dedicated solar scope, a motorized GoTo mount that can also be used with conventional astronomical OTAs for nighttime observations, and a 4" dovetail plate for mounting the OTA to the head.

  • Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

    Lunt Solar Systems' LS50THa 50mm f/7 Refractor Solar Telescope is ideally suited for beginner solar observers or as a grab-and-go option for fast sessions. It features a 50mm objective lens and an internal etalon with a <0.75 Angstrom bandpass. The scope is offered here with a 4mm blocking filter in a star diagonal configuration. It fits in the helical focuser and accepts 1.25" eyepieces for visual observation.

    Integrating the etalon into the optical path reduces interference and distortion which can occur with externally mounted filters. True Doppler Tuning allows for a shift into and away from the user for a richer depth of field. While looking at a filament at the center of the Sun, the user has the ability to Doppler shift from the base of the filament to the tip, following the filament through its structure toward and away from them, allowing for enhanced visual and imaging capability.

    Complementing the optical performance and technologies is a 1.25" helical focuser. This type of focuser has a rotating collar around the filter holder in place of the focusing tube which reduces the overall length of the telescope while maintaining the ability to achieve a fine focus. This solar scope is offered here without a mount or tripod, but is outfitted with a mounting base that has a 1/4"-20 thread for attaching it to most tripods or compatible mounts.

    Optical Performance
    • 50mm aperture
    • f/7 focal ratio
    • 530mm focal length
    • Refractor-style optical path
    • Internal etalon with tune adjustment allows for a <0.75 Angstrom bandpass at 656nm
    • True Doppler Tuning allows for a shift into and away from the user for enhanced viewing
    Blocking Filter
    • Use for visual observation only
    • 4mm aperture
    • Fits into focuser and accepts 1.25" eyepieces
    • Star diagonal configuration
    • 1.25" diameter
    • Helical design focuses by turning collar
    • Reduces obstructions and simplifies use
    UPC: 814393021401
  • iOptron CubePro GoTo Alt-Az Mount

    iOptron's CubePro GoTo Alt-Az Mount sports a compact mount design that measures a mere 8x5x5" while being a functional & flexible motorized computer-controlled unit for most star gazing duties. Both axis motors are built into a small single unit which is compatible with all telescope OTAs with a Vixen-style dovetail plate up to 8lb including accessories. The unique design eliminates "dead spots" enabling you to point your telescope to any point above the horizon, unlike other mounts which tend to block the telescope tube at certain points of rotation. This mount comes with a 110 VAC adapter to power it if you're near civilization, but if you're heading off the grid it can run on eight user-supplied AA batteries. A 1.25" stainless steel tripod is provided so all you need is a compatible OTA to start your observation session.

    Included with the mount is the Go2Nova 8401 computer controller. This handheld unit features a 130,000 object database with 256 user-defined customizable objects for your favorite celestial bodies. The easy-to-use menu-driven system displays on a 8-line 21-character back-lit screen. This fully GoTo-capable unit has automatic tracking for fast moving near-space objects such as the Sun, Moon and planets, and slower moving deep-sky objects like nebulae and galaxies. It also has custom speeds that users can program themselves if they are imaging or taking medium-exposure skyscape photos. For set-up or manual use it has nine slew speeds starting at 1x and topping out at 4°/sec. To make sure you get observing faster, the controller has multiple alignment procedures, plus a 32-channel GPS receiver that provides the mount with accurate day/time/location information. For improved tracking, you have the ability to program out periodic errors that might occur during long-duration tracking, and there is also backlash compensation to eliminate settling that might occur at certain points due to the gaps in the gears. The Go2Nova controller is powered by the mount to make use easier and simple while reducing the unit's weight.

    • Motorized alt-az mount
    • Compact design
    • Dual-Axis 12VDC servomotor
    • Zero "dead spots": Many other mounts block the OTA at certain points of rotation
    • 8 lb payload capacity
    • Vixen-style dovetail saddle to mount compatible OTAs
    • Runs on included 110 VAC power adapter or eight user-supplied AA batteries
    • Operating temperature: 32 to 104°F
    • Integrated bubble level
    • 32-channel GPS module for accurate day/time/location information without user input
    • 3.3lb (1.5kg) counterweight with bar for balancing larger gear
    Go2Nova Controller
    • Easy-to-navigate menu-driven interface
    • Automatic GoTo and tracking
    • 130,000 object database
    • Objects include galaxies, nebulae, star clusters, and the planets
    • 256 user-defined objects
    • One-star, Two-star, Three-star alignment processes
    • Tracking rate: Celestial, solar, lunar, and user defined
    • Anti-backlash compensation to eliminate the play between gears
    • PEC (Periodic Error Correction) helps to correct errors in tracking over prolonged periods
    • Slew speeds: 1x, 2x, 8x, 16x, 64x, 128x, 256x, MAX (4%/sec)
    • Large 8-line, 21-character LCD screen with backlit LED buttons
    • USB Port for computer/ASCOM interconnectivity to use planetarium computer software of firmware updates via the Internet
    • Supports compatible electric focusers
    • Stainless steel
    • 1.25" (3.2cm) leg diameter
    • Accessory tray
    • Spiked feet for sure footing in soft ground
  • Lunt Solar Systems Vixen-Style Dovetail Plate (4")

    Use Lunt Solar Systems' short Vixen-Style Dovetail Plate to attach a telescope optical tube assembly (OTA) to compatible mounts. The 4" long plate is intended for shorter OTAs, and is made of a lightweight and durable aluminum alloy with a black scratch and corrosion-resistant anodized finish. The plate has four mounting holes tapped with 1/4"-20 threads and comes with two mounting screws.

    UPC: 814393023757
  • Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter
    Objective Diameter 50mm
    Focal Length 350 mm
    Focal Ratio f/7
    Bandwidth <0.75 Angstrom at 656 nm
    Finderscope None
    Mounting Integrated mounting base with 1/4"-20 thread
    Length Not specified by manufacturer
    Weight Not specified by manufacturer
    Packaging Infoduabvrwteyresqcatsusf
    Box Dimensions (LxWxH) 22.9 x 15.8 x 9.4"
  • iOptron CubePro GoTo Alt-Az Mount
    Mount Type Motorized alt-azimuth
    Load Capacity 8.0 lb / 3.6 kg
    Motor Dual-axis 12 VDC servomotor
    GoTo System Go2Nova 8401 hand controller
    Polar Axis Scope None
    Tripod Yes
    Stainless steel
    1.25" / 3.2 cm leg diameter
    Power Source 8 x AA batteries
    110 VAC power adapter
    Power Requirements 12 VDC
    Operating Temperature 32 to 104°F / 0 to 40°C
    Dimensions Mount: 8.0 x 5.0 x 5.0" / 20.3 x 12.7 x 12.7 cm
    Weight Mount: 3.75 lb / 1.7 kg
    Tripod: 5.6 lb / 2.5 kg
    Packaging Info
    Box Dimensions (LxWxH) 36.0 x 12.0 x 7.0"
  • Lunt Solar Systems Vixen-Style Dovetail Plate (4")
    Material Aluminum
    Length 4.0" / 10.2 cm
    Packaging Info
    Box Dimensions (LxWxH) 3.7 x 1.5 x 0.6"

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