Product information "LUNT LS50THa/B400PT H-alpha solar telescope (Refurbished)"
NOTE: This item is a used or returned product. This means: The item may show slight signs of use; some accessories may be missing; the packaging may differ from the original packaging. Please note that refurbished items generally come with a 12-month warranty.
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.FEATURESAperture: 300mm (no central obstruction)Focal length: 2128mmBandwidth: 2 internal Etalons with <0.5 AngstromsTuning: Air-pressure tuning systemElectronic pressure tuner controllerBlocking filter: B3400 with 2" and 1.25" connectionFocuser: Feather-Touch focuser from Starlight-Instruments with 10:1 reductionDovetail bar with Losmandy level for astronomical mountsWeight: ?kgLength: ?cmSCOPE OF DELIVERYLS300THa Double-Stack H-alpha solar telescope2x Pressure-TunerElectronic pressure tuner controllerB3400 blocking filter in straight extension tubeFeather-Touch focuserDovetail bar (Losmandy level)Manual
50mm H-alpha double-stack solar filter, for all LS50FHa filter-systems and LS60THa/LS60MT telescopes.This double-stack Etalon is compatible to all Lunt Solar Systems LS50FHa filter-systems and LS60THa / LS60MT telescopes. Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom (dependent upon used telescope). So you will have much more contrast and more details on the sun will be visible.Without blocking filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.75 Angstrom.FEATURESAperture: 50 mmNo central obstructionBandwidth double stacked: <0,55 AngstromTuning: tiltable EtalonHousing diameter: 95 mmLength: 73 mmWeight: 0.7 kgFront thread: M90x1 female threadRear thread: M90x1 male threadSCOPE OF DELIVERYLS50FHa solar filterTransport caseInstruction manual
NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.
Ambitious beginners and advanced observers alike will see the brightest objects outside our solar system with the MESSIER AR-102. Watch details in the Great Orion Nebula from the astonishing distance of 1500 lightyears (14.200.000.000.000 km)! Scanning the lunar terminator is simply a pleasure. Scanning the Milky Way in Saggitarius shows a multitude of deep-sky objects.
This telescope is only an optical tube without mount and tripod.
FEATURESOptical design: refractor telescopeLens diameter: 102 mm / focal length: 600 mm / F/6Maximum recommended magnification: 204x
Very high quality Hexafoc focuser with 2.5" free inner diameter
6x30 straight through viewfinder;optimized finder bracket for comfortable use
31.7 mm (1.25") diagonal mirror
Cradle rings with handle and integrated piggyback camera holder (1/4'' thread)
Universal 44 mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)
50,8mm (2'') to 31,7mm (1,25'') adapter with integrated T2 thread (optional T2-adapter ring for your camera is needed)
Smartphone adapter for sky navigation included
telescope for night and solar observation
SCOPE OF DELIVERY
optical tube
Eyepiece: 26 mm Super Ploessl 31.7 mm (1.25")
31,7 mm (1,25") diagonal mirror
integrated 31,7 mm and T2 adapter
Prism rail with stainless steel clamping surface (44mm universal dovetrail for GP/EQ5/LXD75)
6x30 viewfinder
rotable star chart
Objective Solar- filter
Tube clamp with handle and camera holder
Smartphone adapter for celestial navigation
Software Stellarium ( via Download)
€319.00*
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