LUNT LS230THaDS/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.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

This polarizing filter can be used for example at the Lunt Solar Systems 1.25" White-Light Herschel-wedge (0558211).FEATURESLinear polarizing filterFilter mount with 1.25" filter threadSCOPE OF DELIVERY1x 1.25" polarizing filter

SXP2WL Mount with high-performance VC200L Cassegrain Mirror Telescope in complete setWith this complete telescope set, you can immediately begin your hobby. It includes everything you need for astronomical observation: the telescope, an automatic mount with GoTo alignment and tracking, a tripod, and two eyepieces. The SXP2WL mount comes with the PFL-II polar finder for quick and easy alignment using reference stars and the STAR BOOK APP. This allows your telescope to automatically locate the objects you've selected. The 259,000 celestial objects are already preloaded in the STAR BOOK APP. The VC200L Cassegrain telescope is optimized for photography and delivers a sharp and high-contrast image to the edges of the camera chip. You can look forward to breathtaking, razor-sharp images of galaxies and nebulae. But it is also excellent for visual observation, providing high-contrast images without color errors. You'll be amazed when you take a look at the lunar surface with its many craters or observe Saturn with its ring system.The VISAC primary mirror (= Vixen Sixth-Order Aspheric Cassegrain) features a special coating technique (state-of-the-art technology) and provides the optimal mirror surface for observation and photography. This allows for controlled coating and corrects errors on the mirrors individually. Spherical aberration, coma, and field curvature are non-issues for this optic. Another reason for this is the three-lens field corrector in front of the convex secondary mirrorThe SXP2WL mount is operated easily via a WiFi module with your smartphone or tablet. The user-friendly STAR BOOK Wireless app is available free of charge to control the mount. This app allows you to easily use convenient sky navigation functions like automatic GoTo slewing to specific celestial objects directly from your smartphone or tablet. As the power consumption of the traditional LCD screen (STAR BOOK TEN) is eliminated, the power consumption of the mount is reduced by up to 20%. This enables longer periods of astronomical observation and astrophotographyIf you select a desired celestial object from a list, it is automatically slewed into the telescope's field of view and tracking begins. An existing STAR BOOK TEN control system can also be used with this mount without any problems. Equipped with the same precision stepper motors as the flagship AXD mount, the SXP2WL sets a new standard in performance and precision in the Vixen mount familyThe cross-axis of the SXP2 mount, with a photographic load capacity of 17 kg, weighs just 13.3 kg, making it ideal for mobile observations. Additionally, the motors installed in the lower part of the mount serve as counterweights. This reduces the need for additional counterweightsLarger ball bearings are used in the SXP2 mount compared to previous models to increase accuracy and load capacity. The mount housing is also characterized by thicker material. To further stabilize the polar block, the cross-axis is firmly clamped into a fork Very precise tracking with P-PEC functionThe SXP2 mount comes with the modern STAR BOOK TEN controller. It provides you with the P-PEC function for particularly precise tracking. The term 'PEC' stands for 'Periodic Error Correction.' The system corrects the mechanical errors caused by periodic errors in the gear systems. The P-PEC function stores your correction data even after the mount's power is turned off, so you don’t need to re-enter the data each time, allowing for faster operation and more accurate tracking Low-noise belt drive system with minimal backlash In conventional motor drive systems for equatorial mounts, gears are driven by the motor. However, this design has the disadvantage of introducing some play between the gears. To avoid the inaccuracies that arise from this, the SXP2 mount uses a belt drive system. This significantly reduces both the play in the gears and the operating noise. Additionally, the device responds more quickly to corrections 16 bearingsThe mechanical parts of the SXP2 mount feature a total of 16 bearings. The RA axis is supported by a set of tapered roller bearings, providing more stability for precise tracking Stable polar block for alignmentThe SXP2 mount uses the same fork as the heavier AXJ mount. This new design enables fast and stable latitude adjustment Simple and accurate polar alignment using reference starsThe 6x20 polar finder is pre-installed. It allows you to adjust polar alignment for both the northern and southern hemispheres. The polar finder provides a variable illuminated reticle with an automatic shutoff function. The brightness can be adjusted in 8 levels, so you can customize it to your personal needs. Additionally, the polar finder comes with direct adjustment using three reference stars and can achieve an accuracy of up to 3 arc minutes Variable mount headThe mount head has a diameter of 35 mm and eight threaded holes for M8 screws, arranged at 45-degree intervals. An optional accessory plate can be attached directly or in combination with an optional mounting block for dovetail plates. Additionally, the threaded holes on the mount head allow for the use of mounting rails from other manufacturers Combination of innovative, elegant design and user-friendly operationThe stable, rigid mount body with very accurate tracking has been further optimized by the P-PEC function. The SXP2 is a highly precise and easy-to-use mount that will delight every astrophotographer and observer Special motor placement for fewer counterweightsThe heavy RA and DEC motor units are located in the lower part of the declination body, placing the center of gravity of the cross-axis beneath the RA and DEC axes. As a result, the declination body acts as a counterweight. Additionally, the flat mounting head enables the mount to be balanced with significantly fewer counterweights Retractable counterweight shaftThe counterweight shaft is made of solid stainless steel and has a diameter of 20 mm. It is compatible with all counterweights from the SX and GP mount series. The counterweight shaft is housed in the declination body Accessory shoeFor simple and quick polar alignment, the #35511 Polar Meter can be slid onto this shoe Latitude adjustmentThe latitude is adjustable between 0 and 70 degrees (divided into 3 zones and adjustable +/- 15 degrees per zone for high, medium, and low latitudes) The Vixen WiFi adapter in detail The Vixen WiFi adapter for EQ mounts allows you to control your Vixen mount via a smartphone or tablet. Using the free STAR BOOK Wireless app, you can perform sky navigation wirelessly. The app turns your mobile device into a controller for the equatorial mount in no time. The response delay of the mount, typically the main drawback of wireless connections, has been reduced to a level comparable to wired solutions Reduced power consumption compared to traditional controllers with LCD monitorsThe power consumption of the mount is reduced by up to 20%, allowing for longer observation periods compared to traditional wired controllers like the STAR BOOK TEN Operation similar to the STAR BOOK TEN controllerThe STAR BOOK Wireless app is similarly structured to the STAR BOOK TEN controller. It contains up to 259,000 celestial objects depending on the star chart settings. Simply select a celestial object from the object list and start GoTo. The mount will automatically slew to the target and bring it into the telescope's field of view. All popular features of the STAR BOOK TEN are retained Comfortable operationWhen looking through the telescope, you can control the mount by swiping on the app’s star chart. Since there are no buttons, you can easily glide your finger over the star chart and comfortably control the mount Comprehensive astronomical data includedThis includes not only data on well-observed celestial bodies such as Messier objects, NGC objects, IC objects, but also the Sun, Moon, planets, comets, and dwarf planets Highly precise alignmentBy aligning with one or two stars, you can already achieve relatively accurate mount positioning. Aligning with three or more stars allows for highly precise mount alignment for high magnifications. The objects are then exactly centered in the telescope’s field of view. The alignment information is saved and can be retained even when the device is turned off. If you leave the telescope in its current state after a session, you can start the next session with the same settings without moving it Customizable settingsThe app, like the STAR BOOK TEN controller, offers various customizable settings such as gear backlash compensation, night mode in red, autoguider, variable GoTo speed, and LED brightness. You can also adjust the moment of the meridian flip (telescope tube inversion) as needed. Even if the object moves south during tracking, you can prevent the telescope tube from inverting Technical information about the WiFi moduleCPU with 32-bit CISC processor 120 MHzThe unit is connected to the mount via 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, WiFi standard: IEEE 802.11b/g/n FEATURES SXP2 MOUNT RA worm wheel: 73.2 mm Ø, brass wheel with 180 teeth DEC worm wheel: 73.2 mm Ø, brass wheel with 180 teeth Worm shaft: 9 mm Ø, brass RA & DEC axis: 40 mm Ø, carbon steel bearing, 16 bearings Counterweight shaft: 20 mm Ø RA Polar finder scope: PF-LII 6x20 mm Stepper motors: 250 PPS speed, maximum 1000x sidereal rate Maximum payload: 17 kg photographic without counterweight Power supply: DC12 V 0.45~2.2 A Dimensions: 386 x 419 x 128 mm Weight of cross-axis: 13.3 kg without counterweight Counterweight: 3.7 kg, 1.9 kg FEATURES VC200L TELESCOPE Optimized for photography with built-in field flattening lens (Flattener) Revolutionary coating technology High light-gathering capability 200 mm aperture and 1800 mm focal length Resolution/limiting magnitude: 0.58/13.3 mag Optional reducer available Backfocus without reducer: 142.9 mm Backfocus with reducer: 63.5 mm Made in Japan Weight: 6.9 kg SCOPE OF DELIVERY VC200L Telescope SXP2WL Mount Cigarette lighter cable connection WiFi Adapter Mounting tools SXG-HAL130 Tripod 2 Counterweights: 1.9 kg and 3.7 kg 7x50 illuminated finder scope with 1.25-inch connection Flip mirror Carrying handle Dovetail bar PFL-II Polar Finder, illuminated Dovetail clamp 2 Eyepieces: SLV 20 mm and SLV 9 mm