LUNT LS300THaDS/B3400 H-alpha solar telescope

  • Special telescope for observing the Sun
  • Bandwidth less than 0.5 Angstrom
  • 300mm aperture
  • 2128mm focal length
  • Electronic Pressure-Tuner controller

£176,590.00*

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Product number: 0551921
EAN: 4007922062556
WEEE-Reg.-Nr.: DE 34323861

With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.

Here is the table of contents of the comprehensive BRESSER Telescope Guide:

Sky Guides by Bresser

The Sky Guide provides comprehensive information on constellations, planetary positions, and astronomical events – perfect for planning your observations and delving deeper into astronomy.
Visit the guide directly here to make the most of your observations!
Product information "LUNT LS300THaDS/B3400 H-alpha solar telescope"
Please note: This telescope is made to customer specifications. Therefore special conditions apply for this telescope and online ordering is not possible. Please contact our customer service if you would like to order this telescope.

Complete H-alpha solar telescope with 300mm aperture and a bandwidth of <0.5 Angstroms. With Feather-Touch focuser, innovative air pressure tuning system and B3400 blocking filter.


A extremely large telescope for observing the Sun in H-alpha wavelength, a precisely adjusted refractor with a free aperture of 300mm without central obstruction and 2128mm focal length. The telescope is equipped as standard with a double-stack system, two internal Etalon filters with the innovative air pressure tuning system Pressure-Tuner achieve a bandwidth of <0.5 Angstroms. The Pressure-Tuner system ensures a homogeneous H-alpha image and optimal performance. The Etalons are safely installed inside the telescope. The air pressure tuning system is precisely controlled by an electronic pressure tuner controller.
Blocking Filter is the B3400. The B3400 is well suited for imaging the Sun. For visual observation we recommend an additional zenith mirror. The straight extension tube, in which the blocking filter is installed, is equipped as standard with a 2" eyepiece holder and also with an adapter for 1.25". Focusing is done by the legendary Feather-Touch focuser from Starlight-Intruments with 10:1 reduction.

FEATURES
  • Aperture: 300mm (no central obstruction)
  • Focal length: 2128mm
  • Bandwidth: 2 internal Etalons with <0.5 Angstroms
  • Tuning: Air-pressure tuning system
  • Electronic pressure tuner controller
  • Blocking filter: B3400 with 2" and 1.25" connection
  • Focuser: Feather-Touch focuser from Starlight-Instruments with 10:1 reduction
  • Dovetail bar with Losmandy level for astronomical mounts
  • Weight: ?kg
  • Length: ?cm

SCOPE OF DELIVERY
  • LS300THa Double-Stack H-alpha solar telescope
  • 2x Pressure-Tuner
  • Electronic pressure tuner controller
  • B3400 blocking filter in straight extension tube
  • Feather-Touch focuser
  • Dovetail bar (Losmandy level)
  • Manual

Batteries included: No
Batteries required: No
Extended warranty (years): 5
Material: Aluminium
Mirror/Lens diam. (mm): 300
Power supply unit included: No

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Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


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Convenient operation While looking through the telescope, you control the mount by swiping on the star chart of the app. Since there are no buttons, you simply slide your finger over the star chart, allowing you to conveniently operate the mount. Extensive astronomical data included This includes data on easily observable celestial bodies such as Messier objects, NGC objects, IC objects, as well as the sun, moon, planets, comets, and dwarf planets. High-precision alignment Alignment on one or two stars already gives you quite an accurate positioning of the mount. By aligning with three or more stars, a very precise alignment of the mount for high magnifications can be carried out. The objects are then positioned exactly and centrally in the field of view of your telescope. The alignment information is saved and can also be retained when the device is turned off. By leaving the telescope in its current state after an observation, without moving it, you can start the automatic installation with the same settings during the next observation. Individual Adjustment Options The app offers various individual settings such as gear backlash compensation, red night mode, autoguider, variable GoTo speed, and LED brightness, just like the STAR BOOK TEN control. You can also set the timing of the objective tube reversal (Meridian Flip) according to your wishes. Even if the object moves south during tracking, you can prevent the telescope tube from reversing. Important Information Not usable on old SX mounts with the old blue Star Book Technical Information on the Wifi Module CPU with 32-bit CISC processor 120 MHz The unit is connected to the mount with a D-SUB 9PIN connector as with the STAR BOOK TEN. It has a 6-pin 6-wire modular connector for external autoguider operation. Supported operating systems are Android 6 or higher, iOS 9.0 or higher, WLAN standard: IEEE 802.11b/g/n FEATURES AX102S Apochromatic Refractor Optimised for full-frame photography 103 mm aperture, 825 mm focal length, f8.0 Resolving power: 1.13 Visual limiting magnitude: 11.8 Fully coated Triplet ED lens with flattener Very high sharpness and contrast Optional reducer available Backfocus without reducer: 150.0 mm Backfocus with reducer: 63.5 mm SXD2WL Mount RA gear ring: 180 teeth DEC gear ring: 180 teeth Axis material and diameter: Carbon steel / Dec. 35 mm, RA 40 mm Polar finder telescope: 6x20 mm, PFL-II polar finder Height fine adjustment: 0° to 70°, (fine adjustment +/- 15°, height) Counterweight bar: 20 mm diameter Azimuth adjustment: Worm gear fine adjustment Power supply: DC12 V; 0.4~1.7 A Maximum payload: 15 kg, photographic, without counterweight Counterweights: 1x 1.9 kg and 1x 3.7 kg Tripod connection: 45 mm pin Dimensions: 36 cm (H) x 12 cm (W) x 36 cm (L) Weight: 8.8 kg (19.4 lb), without counterweight 32-bit CISC processor 120 MHz Operating system: Android 6 or higher, iOS 9.0 or higher Connection: D-SUB 9PIN connector Autoguider input ST4 Power consumption SXD2WL+Wireless unit: DC12V / 0.3–2.0 A (load 10 kg), 0.4–2.2 A (load 15 kg)SCOPE OF DELIVERY SXD2WL Mount Wireless Unit Counterweight: 1.9 kg and 3.7 kg Illuminated polar finder telescope Mounting tools Car lighter cable AX103S Apochromatic Refractor Flip mirror 2 eyepieces (SLV 20, SLV 5) Tube clamps Dovetail plate 7x50 finder, illuminated SXG Aluminium tripod

£6,209.00*