LUNT LS1.25HW 31.7mm (1.25'') Herschel Wedge

Enjoy excellent resolution of the Solar surface in complete safety with this Lunt Herschel Wedge

Solar observation in White-Light for perfectionists
For refracting telescopes up to 102mm aperture
Shows sunspots and granulation at best contrast
In 90° angle housing like a Star Diagonal
Necessary ND3.0 filter is already factory installed
No escaping stray light due to integrated light trap
Absolutely safe, no danger for the eyes

€149.00*

% €229.00* (34.93% saved)

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Product number: 0558211

EAN: 4007922035284

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:

Introduction to Astronomy

The View of the Starry Sky

Foundations of Celestial Mechanics

Telescopes - Optics and Mechanics

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 LS1.25HW 31.7mm (1.25'') Herschel Wedge"

This Herschel wedge is designed for superior White-Light solar observing and imaging. It can be used with refracting telescopes up to 102mm aperture, with 1.25'' focuser. This complete system comes with installed ND3.0 filter.

Herschel Wedges are used to observe the sun in White Light. Around 95% of the Sun's light is suppressed by the wedge's ceramic prism. The remaining sun light is dimmed further by a factory-installed ND3.0 grey filter. Lunt Solar Systems Herschel wedges are installed in a fully closed housing with integrated heat trap. No stray light can escape from this, therefore it is very safe method of observing our nearest star.

The difference between Herschel-wedges and normal front mounted filters is that the filtering takes place just before the eyepiece or camera. This provides better contrast and sharpness of the solar image - with more surface detail visible as a result. Furthermore, a Herschel wedge is inherently safer than at a front mounted filter. A Herschel wedge can not rip or become punctured like a foil filter can be and it cannot become detached from the telescope objective accidentally.

Only for use with refractor telescopes up to 102mm aperture:
Because the full energy and heat of the sun inside the telescope, we advise solely using refractors for Herschel-wedge use. The refractor must not have corrector lenses at the back. Optical elements like corrector lenses, or secondary mirrors of reflecting telescopes, could suffer from thermal build-up by concentrated solar energy and could be permanently damaged.

Tuning the brightness:

Because the Herschel-wedge produces polarised light, you can use a normal polarising filter at the eyepiece, or camera-adapter. By turning the polarising filter the image brightness can be varied to the user's liking.

This additional Polarising filter is not included. We recommend the BRESSER 1.25'' polarising filter, no: 4946464.

FEATURES

For refractor telescopes up to 102mm aperture
Connection to telescope: 1.25''
Connection to eyepiece: 1.25''
90° housing like star-diagonal
Especially high-quality optical surfaces for very good contrast
Fully closed housing with integrated heat trap
No stray light escaping - therefore it is very safe
The needed ND3.0 filter is fix installed

WHAT'S INCLUDED

Herschel-wedge for 1.25'' focuser
Integrated ND3.0 filter
Transport case
Instruction manual

Batteries required:	No
Case:	Aluminium Case
Colour:	black
Extended warranty (years):	5
Eyepiece Barrel Diameter (mm):	31.7
Eyepiece view direction:	Inclined view 90°
Field of application [Telescopes]:	Solar observation
Material:	Aluminium
Net Weight total (incl. accessories) (in kg):	0.23
Telescope filter type:	Solar Filter White Light
Total height (mm):	100
Total length (mm):	90
Total width (mm):	40

Manual_Herschelkeil_de_LUNT-SOL_v012020a.pdf

Manual_Herschel-Wedge_en_LUNT-SOL_v012020a.pdf

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!

Accessories

BRESSER Single Polarizing Filter 1.25"

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

Available

€39.90*

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

Available

€279.00*

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

€48.00* €59.00* (18.64% saved)

Details

BRESSER Messier AR-90 90/900 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.Excellent for entering into the hobby of astronomy: 90mm aperture delivers 200 times more light than the naked eye! Observe craters, valleys and rims on the moon from nearly 400,000km away just as you would look out of the window of a spaceship! The MESSIER AR-90 does not only provide highly detailed views of the moon: Gaze at the division of the rings of saturn millions of kilometers away or explore the Great Red Spot of Jupiter, a giant tornado in Jupiter's atmosphere. Watch the seasons on Mars and find the sickle of Venus. The MESSIER AR-90 gives you images that are many times brighter than the instrument Galileo Galilei was using for his famous explorations almost 400 years ago. This telescope is an optical tube without mount and tripod. CHARACTERISTICS Optical design: refractor telescopeLens diameter: 90 mm / focal length: 900 mm / F/10Maximum recommended magnification: 180xTelescope for night and solar observation 6x30 viewfinder with crosshair eyepiece Optimised finder mount for comfortable viewing 31.7 mm (1.25") zenith mirror Smartphone adapter for celestial navigation includedSCOPE OF DELIVERY Optical tube 26 mm Super Plössl eyepiece (31.7 mm / 1.25") 31.7 mm (1.25") diagonal mirror Integrated 31.7 mm and T2 adapter 6x30 optical viewfinder Rotatable star map Aperture solar filter Smartphone adapter for celestial navigation Astronomy PC software Stellarium (via download)

Currently not available

€199.00*

Details

BRESSER Messier AR-152L/1200 Hexafoc Optical Tube

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.For the ambitious planetary observer the BRESSER Messier AR-152L is a dream machine. View tiny dots and structures in the cloud bands of Jupiter, small rims and craters on the surface of the moon and details on Mars, including the ice-covered polar regions of our neighbouring planet. Watch Jupiter's moons dance around the planet and detect the greenish glow of Uranus far beyond Saturns orbit. The combination of large aperture and long focal length provides tack-sharp high-contrast pictures that will impress you every time anew. This telescope is only an optical tube without mount and tripod. CHARACTERISTICS Optical design: refractor telescopeLens diameter: 152 mm / focal length: 1200 mm / F/7.9Maximum recommended magnification: 254xTelescope for night and solar observation High-quality and light gathering achromatic objective lens Modern multi-coating of the lenses for a bright and high-contrast image Robust aluminium tube construction Very high quality Hexafoc focuser with 2.5" free inner diameter 8x50 viewfinder with crosshair eyepiece Optimised finder mount for comfortable viewing 31.7 mm (1.25") zenith mirror Cradle rings with handle and integrated piggyback camera holder (1/4 thread) Smartphone adapter for celestial navigation included Prism rail with stainless steel clamping surface (44 mm universal dovetail for GP/EQ5/LXD75) 50.8 to 31.7mm adapter with integrated T2 adapter (optional T2 ring required) SCOPE OF DELIEVRY Optical tube 26 mm Super Plössl eyepiece 31,7 mm(1.25'') 31,7 mm (1.25") Zenith mirror, 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 Astronomy PC software Stellarium (via download)

Currently not available

€899.00*

Details

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Universally usable variable polarizing filter with a 1.25" filter thread.This variable polarizing filter allows for a continuous adjustment of the image brightness. This is very helpful to level strong differences in contrast of different observation objects individually. Particularly for lunar and planetary observations but also for solar observations this filter prevents an outshining of details.Solar observations ONLY together with an adequate solar filter !!! Particularly when a Herschel wedge is used and with large objective lens apertures the use of the variable polarizing filter can reduce the brightness of the observation object to a confortable level. The large adjustment range of 40% to 1% light transmission and the neutral grey filter effect create a comfortable and unadulterated image.The handling is very simple. The desired filtering level is set by turning the two sides of the housing against each other.A 1.25" filter thread on both sides (female/male) allow for the simultaneous use of additional colour filters.FEATURESvariable polarizing filterindividually adjustable image brightnessmade from high-quality optical glassblack anodized aluminium housing1.25" filter thread on both sidesSCOPE OF DELIVERYpolarizing filterprotective box

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LUNT O-ring 32mm for Pressure-Tuner at MT & THa solar telescopes

Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSTwo rubber O-rings are installed into the Pressure-Tuner of Lunt Solar Systems solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-rings can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, a old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF file for download.Please be sure to note:Depending on the production series, the diameters of the Pressure-Tuner pistons can vary slightly. There are pistons for O-rings with 32mm inner diameter and 40mm outer diameter, and pistons for O-rings with 34mm inner diameter and 42mm outer diameter. Please check the diameter of your old O-rings, this spare part is an O-ring with 32mm inner diameter and 40mm outer diameter.If you need the larger O-ring with 34mm inner diameter and 42mm outer diameter, this is the spare part with item number 0558340.The LS50THa telescopes have Pressure-Tuners with smaller diameters, for these you will need replacement O-rings with item number 0558320.After replacing a O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under item number 0558350.FEATURESInner diameter: 32mmOuter diameter: 40mmCannot be used separately, only as a replacement part on the Pressure-Tuner of MT and THa telescopes from Lunt Solar Systems.It does not matter what blocking-filter is at the MT or THa telescope.SCOPE OF DELIVERYSpare part one O-ring with 32mm inner diameter and 40mm outer diameter for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

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