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LUNT LS18CaKMDs2 Ca-K filter in extension tube

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 and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • Safety instructions: There are certain dangers when observing the sun, regardless of the telescope used. Lunt-Solar-Systems places great emphasis on the safety of their products during manufacture. Your safety is the highest priority, and we ask that you carefully read the telescope manual before beginning solar observation. Please never disassemble the telescope! Never use it if it has been modified or damaged in any way! Always contact our customer service if you have any questions regarding the safety of your instrument. Never look at the sun with an unprotected eye or with a telescope not intended for solar observation! Never leave your telescope unattended while it is pointed at the sun! Other people who are unfamiliar with it might attempt to replace the block filter with another prism, unaware of how critical this filter is for safety. The components of Lunt-Solar-Systems telescopes are not interchangeable with those of other manufacturers. Lunt-Solar-Systems solar telescopes contain several different optical elements that have been precisely adjusted and mounted during manufacture. These systems require no maintenance. Never disassemble the telescope. Doing so will void the warranty, potentially leading to expensive repairs, and may cause future damage to your instrument, compromising your safety! Most Lunt-Solar-Systems telescopes and filters include a very sensitive optical component called an Etalon. These Etalons are built into the system to protect them as best as possible. Countless considerations have been made to ensure the best performance of this "heart" of every system, even under the daily stresses it inevitably faces, such as shocks and vibrations during transport or regular use. Nevertheless, it should never be dropped. Improper use of the telescope can damage the Etalon (not a warranty case) and render the system unusable until repaired. The instrument should always be stored in its original packaging or in the optional transport case (item number 0554010). Like any optical precision instrument, it should be stored in a dry environment. With proper care, you will enjoy your instrument for a lifetime!
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Accessories

LUNT LS7-21ZE Zoom Eyepiece 7.2mm - 21.5mm
Lunt Solar Systems zoom-eyepiece with variable focal length from 7.2mm to 21.5mm, with 1.25 inch (31.7mm) connection.The special of this zoom eyepiece is that the optical layout offers highest quality views of the sun, but also on nightsky objects. LUNT minimized the reflections by using superb multicoatings and with care designed internal baffle system and blackened lens edges. The LUNT zoom-eyepiece is not the widest field zoom-eyepiece on the market, LUNT prefered best performance over widest field. The sun and stars are perfect pin point across the entire field of view without any visible distortion. The LUNT zoom-eyepiece is almost parfocal, from one end to the other end of the zooming way you need only 0.5mm to refocuse. The LUNT zoom-eyepiece has a very nice height adjustable eyeguard to protect your eye against day light reflections and to help you to find the perfect eye position.Please note that these eyepieces are only accessories for existing solar telescopes or filters when observing the sun. Solar observation alone with these eyepieces without additional solar filters is not possible!FEATURESFocal length: 7.2mm - 21.5mm continuously adjustableBarrel size: 1.25 inch (31,7mm)Diameter: 47mmHeight: 82mmWeight: 170gEye relief: 15mmLenses / Groups: 7 lenses / 4 GroupsField of view: 53° at 7.2mm - 40° at 21.5mmSCOPE OF DELIVERYLUNT Zoom Eyepiece 7.2mm - 21.5mm

Currently not available

€349.00*
LUNT HAT solar hat with neck flap
Keep your head covered and prevent sunburn while observing. UV protectant material with small pocket and clip to prevent being blown off in the wind. Cool ventilated design. Neck flap to keep your neck protected while looking through the eyepiece.SCOPE OF DELIVERYSolar Hat with neck flap

Currently not available

€59.00*
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Adapter T2 to 2", for 2" eyepieces to blocking filter
Adapter T2 to 2", takes for example 2" eyepieces to Lunt Solar Systems blocking-filters.This adapter offers a T2 female thread at the telescope-side, and a 2" connection at the eyepiece-side.For example you want to use your 2" eyepieces at Lunt Solar Systems telescopes or filters? All you need is this adapter. Simply remove the 1.25" eyepiece tube from your blocking-filter, and thread on this 2" adapter. It takes T2 threading to a 2" eyepiece tube.You can use 2" eyepieces with this adapter at:• LUNT H-alpha telescopes (not at LS35THa!)• the blocking-filters of LUNT H-alpha filter systems• LUNT Ca-K modules• all telescopes/adapter with T2 male threadTechnical data:• Thread at telescope-side: T2 female thread• Eyepiece connection: 2"Delivered by order:• Adapter T2 to 2"(Blocking Filter not included)

Available

€19.00* €29.00* (34.48% saved)
BRESSER Messier AR-102/1000 Hexafoc Optical Tube assembly
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 BRESSER Messier AR-102 telescope. 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. You will never give the BRESSER Messier AR-102 Telescope away voluntarily.  This telescope is only an optical tube without mount and tripod. FEATURESOptical design: refractor telescopeLens diameter: 102 mm / focal length: 1000 mm / F/9.8Maximum 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) 50.8 mm (2'') to 31.7 mm (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 (44 mm 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)

Available

€365.00*
EXPLORE SCIENTIFIC ED APO 102mm f/7 FCD-1 Alu 2'' R&P Focuser
The three-lens design of the EXPLORE SCIENTIFIC ED-Apochromats provides everything an amateur astronomer desires - at a reasonable price. The construction with Hoya FCD001 ED glass has two air spaces and provides a level of correction so superior to the two-lens constructions, that are common in this price class, that you will see the difference immediately. This excellent optical performance teams up with a high precision mechanics - the result is a telescope on a level that is setting a new standard in it´s price class. Astrophotographers will love this telescope - a optional field flattner is available and makes the telescope perfect even for cameras with a large chip format.These very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors we do offer in 3 different product lines:Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0'' Rack&Pinion Focusser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112084(AL), 0112106(AL), 0112132(AL)), 0112155(CF + 3''FT)) Professional Line: HOYA FCD-100 Glas lens, AL/CF-Tube, 2.5'' HEXAFOC Focusser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112086(AL), 0112108(AL), 0112109(CF), 0112134(AL), 0112135(CF))High-End Line: OHARA FPL-53 Glass lens, Carbon(CF) Tube, 3.0'' Feather-Touch Focusser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112165(CF))FEATURESthree lens air-spaced ED-apochromatHoya FCD01-ED glasspolystrehl of above 0.9Tube-weight: 4,9kg Tube length (retracted dew-cap): 560mm Dew-cap diameter: 154mm Tube diameter: 104mmbackfocus: 165mm above 2'' adaptorSCOPE OF DELIVERYOptics with dovetail plate and finder slot2'' Star Diagonal 99% reflectivityDust caps for front-lens and focuser

Available

€1,129.00*
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Customers also viewed

LUNT LS40FHa H-alpha double-stack filter for LS40THa
Double-stack filter for LS40THa telescopes. The bandwidth of H-alpha systems can be reduced by so-called "double-stacking". A smaller bandwidth provides much more contrast at the solar surface, thereby many more details will become visible. Double-stacking with a bandwidth of only <0.55 Angstrom is also possible at the LS40THa telescopes. Therefore Lunt Solar Systems has especially designed this LS40FHa double-stack filter in compact housing. FEATURES Aperture: 40 mm Bandwidth: <0.55 Angstrom Tuning: mechanical tilt-tuning Housing diameter: 70mm Length: 60mm Weight: 0,3kg only usable together with a LS40THa telescope! SCOPE OF DELIVERY LS40THa H-alpha double-stack filter Instruction manual

Currently not available

€998.00*
EXPLORE SCIENTIFIC Sun Catcher Solar Filter for 60-80mm Telescopes
Explore Scientific's Sun Catcher Variable Large Aperture Solar Filters are available in many sizes to work on most telescopes from 60mm up to 10-inch Schmidt-Cassegrain and of course all Bresser and Explore Scientific Telescopes. The Solar Filter material being used is the new advanced 'Solarlite' Film manufactured by world famous Thousand Oaks Optical through years of research and development. 'Solarlite' a new solar film that has the optical quality of glass with the advantages of impregnated polymer. Perfect also for the solar astrophotographer.NOTE: All Explore Scientific Solar Equipment is rated ISO12312-2 supplied by Thousand Oaks Optical and approved for direct observation of the Sun. These solar filters are available in different sizes, the picture above shows three different sizes as an example. This is the solar filter with 60mm filter diameter.SPECIFICATIONSSpecial objective filter for safe solar observationsISO12312-2 ratedField-stop diameter 60mmFits to outer telescope tube diameter from 60 to 160mmQuick individual match with your telescope diameterFast Setup - Easy UseSCOPE OF DELIVERY1x Sun Catcher solar filter

Currently not available

€24.90*
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LUNT LS6CaKMDs2 Ca-K filter in extension tube
Calcium-K module in straight extension tube, for using normal astronomical telescopes up to 100mm aperture and up to 540mm focal length as Ca-K solar telescopes.This Calcium-K module transforms your normal astronomical refractor telescope into a Ca-K solar telescope. It will be very easy: Put the Ca-K module into the 2" focuser of your telescope, and you are ready for solar observing in the light of the Calcium-K wavelength.Internal narrowband filters allow for a <2.4 Angstrom bandwidth. For refractor telescopes up to 100mm aperture and up to 540mm focal length. For imaging it will be better to use a bigger Ca-K module.The Ca-K module is in a straight extension tube, for 2" focuser on the telescope side, and with T2 thread and 1.25" eyepiece connection on the eyepiece side.All needed filter parts are integrated inside the compact module. There are no additional filters needed.The Ca-K wavelength is at the edge of the visible light spectrum for human eyes, so for many people visual observing is difficult. However, all details could be captured photographically. Therefore the Ca-K Module is optimized primarily for imaging.FEATURESBandwidth <2.4 AngstromUsable at telescopes up to 100mm aperture and 540mm focalStraight extension tube housing2" slide tube for 2" focuserConnection for 1.25" eyepiecesT2 thread for camera connectionSCOPE OF DELIVERYCa-K module in straight extension tube for 2" focuserIntegrated blocking filter B600 for telescopes up to 540mm focal lengthInstruction manual

Available

€1,470.00* €1,998.00* (26.43% saved)
BRESSER Messier NT-203/1000 Hexafoc EXOS-2 GoTo Telescope
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. The BRESSER Messier NT-203 with a parabolic main mirror enables observations that wouldn´t have been possible in this price range a few years ago. Through the use of modern manufacturing technology, one can follow the shadows of Jupiter´s moons on the planet itself. The depth of structure and detail on Jupiter´s surface is breath-taking.The Messier NT-203 doesn't however only score in planetary observation: Explore structures in far away galaxies and observe wisps of fog from the nebulae emission in the depth of the Milky Way. Using the Messier NT-203 you can explore the remains of exploded giant stars and the birthplace of new stars. This above-average devise can help you discover the real beauty of our universe!Please note: Reflector telescopes with optical design Newton are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest BRESSER refractor (lens) telescopes for landscape and nature observing.CHARACTERISTICS OPTICSOptical design: reflector telescopeMirror diameter: 203mm / focal length: 1000mm / F/5Maximum recommended magnification: 406x Telescope for night and solar observingVery high quality Hexafoc focuser with 2,5" free inner diameterDiffraction limited optics with parabolic main mirror8x50 straight through viewfinder with reticleOptimized finder socket for comfortable use Cradle rings with handle and integrated piggyback camera holder (1/4 thread)Smartphone adapter for celestial navigation includedDovetail plate with stainless steel rail 50,8mm (2) to 31,7mm (1,25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed)CHARACTERISTICS MOUNT Stable parallactic mount with fine drive in both axes Ball bearings in both axes for more precise movements Stable height adjustable stainless steel tripod ( Min. 69cm / Max. 109,5cm ) Load capacity up to 13 kg payload Circular bubble for easy horizontal alignment GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more ST-4 compatible autoguider interface Pole height scale for setting the latitude Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software Pole finder scope with optional illumination ( item no. 4964212 ) Tripod weight: 4.7 kg Mount weight: 6.7 kg (without counterweight) Total weight incl. counterweight: 20.4 kg Batteries: not includedSCOPE OF DELIVERYOptical tube 26mm Super Plössl eyepiece 31,7mm (1.25") Integrated 31,7 mm and T2 adapter Prism rail with stainless steel clamping surface Adapter for 50.8 mm (2") eyepieces 8x50 optical viewfinder Rotatable star map Aperture solar filter Tube clamp with handle and camera holder Smartphone adapter for celestial navigation Adjustable polar finder scope with optional illumination Astronomy PC software Stellarium (via download)Equatorial EXOS 2 GOTO mount with stainless steel tripod and Startracker handcontroller Stainless steel tube field tripod with accessory tray2 x 4.5 kg counterweight

Available

€1,495.00*