LUNT LS40THa/B500 H-alpha solar telescope

Solar observation in H-Alpha: prominences, filaments, flares ... the most spectacular way to see the Sun - easy and affordable with the LS40THa.Complete H-alpha solar telescope with 40mm aperture, <0.7 Angstrom bandwidth, B600 blocking-filter, and Helical focuser.The LS40THa/B600 is a complete telescope for observing the sun in H-alpha, with 40mm aperture (no central obstruction) and 400mm focal length. The H-alpha wavelength is the most impressive way to observe the sun, showing protuberances at the sun's edge, filaments and flares on the surface, and much more. An Etalon with mechanical tilt-tuning provides <0.7 Angstrom bandwidth.Fine adjustment is achieved with a 1.25 inch Helical focuser. Blocking-filter is the B600, this is very good for visual observation of the sun. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepiece connection.The easy handling makes this telescope ideal for starting H-Alpha solar observation. Due to its compact dimensions it is also a good travel telescope for the experienced solar observers.The LS40THa telescopes are available with choice of B500, B600 or B1200 blocking filters. The larger blocking filters provide less edge obstruction and a larger field of view for visual observation and photography. Please note that these telescopes have only a very small back focus and therefore photography is difficult. We recommend special astro cameras for photography, which have a very short distance to the sensor, such as the BRESSER Full HD camera item number 4959050.FEATURESAperture: 40mm (no central obstruction, 2-lens refractor)Focal length: 400mmBandwidth: <0.7 AngstromTuning: mechanical tilt-tuningBlocking filter: B600 with 1.25 inch connectionFocuser: Helical focuserDovetail bar at standard GP-level1/4-20 tapped base (standard thread for photo-tripods)Sol-Searcher includedWeight: 1.2kgLength: 41cmSCOPE OF DELIVERYLS40THa Solar TelescopeB600 blocking filter in star-diagonal housing1.25 inch Helical focuserDovetail bar (GP level)Sol-SearcherInstruction 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.When looking at the technical data, 80mm aperture may not look too impressive. During the observation the impact of the 31 % more light gathering power in respect to a 70mm refractor are easily visible: Details are seen more clearly in the BRESSER NANO AR-80/640 NANO and from a distance of 600 million km the main cloud bands on the planet Jupiter and many Messier objects gets visible. Richfield telescope with high quality achromatic glass lens and a short focal length of 640mm. Suitable also for traveling and to observe large open star clusterns and the milky way. The telescope arrives with a wide array of accessories and almost pre-assembled - observation can start immediately. The BRESSER NANO is a light-to-medium-duty alt-azimuth mount with tripod designed to quickly and easily accept small to medium sized refractors, such as the AR-90s, AR-102s, AR-102xs and the ED-80 APO. Lightweight, fast Newtonians will also match up nicely with the BRESSER NANO AZ mount. As long as your telescope does not exceed 8 pounds and has a Vixen-Style Universal Dovetail bar for mounting the telescope to the mount head, you are good to go. The stainless steel tripod that comes standard with the BRESSER NANO AZ mount has adjustable legs and a wide foot print, which makes the tripod more stable. Spreader vanes with an acessory tray locks against the inside of the legs to secure the tripod even further, and keep vibrations to a minimum. Do you want to capture what you see ? With the included smartphone holder bracket you can use your smartphone to easily take colour pictures of celestial objects - like through a telephoto lens ! With the included camera adapter ring T2 you can also attach your DSLR or CCD camera direct to the focuser in order to capture high resolution pictures of the Moon by using short exposure times.FEATURESHigh quality and compact refractor telescope Richfield telescope also for traveling Easy to use BRESSER NANO AZ Mount Telescope arrives almost pre-assembled MgF2-coated optics Magnification with supplied accessories: 25x, (max. suggested: 160x) Focal distance, aperture ratio: 640mm, f/8 Stainless steel field tripod Smartphone holder bracket included - for taking pictures Eyepiece diameter: 31.7mm (1.25'') Telescope for night and solar observationSCOPE OF DELIVERYOptical tube Messier AR-80/640 BRESSER NANO alt/azimuth mount Stainless steel tripod with accessory tray Eyepiece: BRESSER Super Plössl 26mm Red dot finder Diagonal mirror 1,25'' (31,7mm) Aperture solar-filterSmartphone camera adapter Camera-Adapter Ring T2 (M42x0.75mm) Star chart software & rotatable star-map

Starlight-Instruments Feather-Touch focuser for very precise focusing.This Feather-Touch focuser allows very fine and precise focusing. The Feather-Touch focuser provides a M35x0.5 thread on the telescope-side, therefore it can be used directly at all telescopes that have a M35x0.5 thread. At the eyepiece-side there is a T2 thread and a 1.25" connection.For example this Feather-Touch focuser can be used at all Lunt Solar Systems LS40THa and LS50THa telescopes. Please note that this Feather-Touch focuser allows very precise focusing at this telescopes, but it will not provide more back-focus than the standard helical-focuser.Technical data:• Length: 48mm to 65mm• Travel: 17mm• Diameter: 57mm• Weight: 350gDelivered by order:• 1.25" Starlight-Instruments Feather-Touch focuser

A very compact, complete telescope for observing the sun in H-alpha light.The LS50THa solar telescope offers 50 mm free aperture, 350 mm focal length, and provides a bandwidth of <0.75 Angstrom. The telescope is fitted as standard with the air-pressure tuning system "Pressure-Tuner", the Etalon is safely installed inside the telescope. Prominences and surface detail can quickly be viewed spontaneously. This very portable system is an ideal travel companion for wherever you go.A B400 blocking filter is installed inside the star diagonal. The B400 is good for visual observing. Focusing is achieved by a non-roting Helical focuser.Please note that there is only a small back-focus at this telescope, therefore solar-imaging is very difficult. The LS50THa is designed for visual solar observing. We recommend for imaging the 60mm telescopes of the LS60MT series.Also double-stacking with a bandwidth of only <0.5 Angstrom is possible by using the additional available LS50C filter (0550210). This filter threads directly onto the LS50THa telescope. Double-stacking will provide much more contrast, and more details on the sun will become visible.FEATURESAperture: 50  mmFocal Length: 350 mmBandwidth: <0.75 AngstromTuning: air-pressure tuning system "Pressure-Tuner"Blocking Filter: B400non-rotating Helical focuserTube-ring with 1/4-20 tapped base (standard thread for photo-tripods)Length: 37cmWeight: 2.1kgSCOPE OF DELIVERYLS50THa H-alpha Solar TelescopeB400 Blocking Filter in star-diagonalPressure-TunerTube ring with 1/4-20 connection for mounting on photo-tripodsnon-rotating Helical focuserInstruction manual