BRESSER Viewfinder Holder 6x30 for Messier Telescope

"BRESSER Viewfinder Holder 8x50 for Messier Telescopes Category: Spare Part suitable for Messier Telescope Series Description: The sturdy Viewfinder Holder 8x50 for Messier Telescopes, made of metal, provides secure attachment of the viewfinder to the telescope. Easy mounting and adjustment make it an indispensable accessory. Compatible with the BRESSER Messier Telescope series (not suitable for AR90/500 & AR 90/900)."

BRESSER Viewfinder 6x30 Category: Spare Part for Messier Telescope Series Description: The high-quality Viewfinder 6x30 with a crosshair is an indispensable accessory for Messier Telescopes. It facilitates precise alignment to celestial objects, enabled by easy mounting and precise adjustment. Suitable for the BRESSER Messier Telescope series.

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: 90 mm aperture delivers 200 times more light than the naked eye! Observe craters, valleys and rims on the moon from nearly 400,000 km away just as you would look out of the window of a spaceship! The BRESSER MESSIER AR-90s 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.Richfield telescope with a short focal length of 500 mm. Suitable for traveling and to observe large open star clusters and the Milky Way. The MESSIER AR-90s 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: 500 mm / F/5.5Maximum 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 26mm Super Plössl eyepiece (31.7 mm / 1.25") 31.7 mm (1.25") zenith mirror 6x30 optical viewfinder Rotatable star map Aperture solar filter Smartphone adapter for celestial navigation Astronomy PC software Stellarium (via download)

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 8'' dobsonian is simply a breakthrough. Despite of its low price this telesccope offers a versatility and quality rivaling a lot more expensive telecopes. The optical diameter of 203mm (8'') does not restrict your observations on solar system objects like the moon or the planets - you can reach farther into the sky and explore globular and open clusters, nebulae and galaxies. With that telescope those objects are beginning to show structures: globular clusters are no longer only fuzzy blobs, but are resolved into masses of individual stars. Nebulae, that can only be barely detected in smaller scopes, reveal structures within. The telescope is setting a new standard in versatility: the excellent Hexafoc focuser boosts a free diameter of 65mm (2,5'') so that you do not have vignetting in big widefield eyepieces that is caused by smaller focuser barrels. The big altitude wheels handle those big, heavy eyepieces without problems - and when you intend to load even more (like a binocular viewer with two eyepieces) then you can move the tube in its tube rings and achieve balance within seconds. The excellent rigidity of the focuser makes focusing a snap - even for astrophotography. This is another virtue of this highly versatile telescope system: you can remove the altitude wheels from the tube rings, attach a dovetail and use the optical tube on a equatorial mount for astrophotography - in minutes. The focuser is handling even heavy cameras tilt and shifting-free. You are extremely demanding in your image sharpness? No problem - with the optional 10:1 gear reduction sharp images are easy. If you consider, that the focuser is that part of the telescope that is used most often, you will recognize the quantum leap this Hexafoc represents in a telescope of this price range. With the included standard accessories (6x30 finder and 25mm SPL-eyepiece) the telescope is ready for observing. If you need to transport or store the telescope as compact as possible you will like this: the rocker box of the 8'' BRESSER Messier assembles and disassembles extremely easy and fast due to the use of metal standard furniture fasteners. So you can transform the bulky rocker box into a handy flat package of boards. This telescope is setting a new standard in usability, versatility and performance in its price class.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. FEATURES Optical design: reflector telescopeMirror diameter: 203 mm / focal length: 1218 mm / F/6Maximum recommended magnification: 406x telescope for night and solar observation high quality BRESSER Newton optics parabolic primary mirror primary mirror diameter: 203 mm focal length: 1218 mm 2,5'' HEXAFOC focus primary mirror out of special-purpose glass with little thermal expansion shifting-free focusing, even with heavy accessories easy to move the tube dismountable rocker box optics can be attached to other mountings differently sized adjusting- and lock-screws SCOPE OF DELIVERY newtonian reflector aperture solar-filter 6x30 viewfinder 25mm SuperPloessl eyepiece (Ø 31,7 mm / 1,25'') 1 extension shell 37,5mm for 2.5'' Hexafoc 1 eyepiece adapter Ø 31,7 to 50,8 mm 2 tube clamps 2 altitude wheels 1 rockerbox with 2 ground boards and assembly material Dimension of shipping box No.1: 125x38x41cm - 15.0kg Dimension of shipping box No.2: 54x54x22cm - 13.5kg

Adapter 2" with brass locking ring for 1,25" eyepieces. The integrated T2 thread adapts DSLR or astro-cameras (*appropriate T2 ring for your camera model needed). On the telescope side there is a 2" filter thread M48x0.75, which allows the easy use of colour and nebula filters.SCOPE OF DELIVERYCamera Adapter 

Universal 50mm viewfinder and guide telescope with a focal length of 220mmExcellent 8x50 viewfinder telescope with removable eyepiece unit and crosshairs with adjustable red illumination. The precise helical focuser and the 1.25 inch /31.7mm plug-in connection, as well as the T2 camera connection thread (M42x0.75mm), allow the autoguiding required for long time exposure to obtain a point-shaped star image. It can also be used as a mini travel telescope.High quality 8x50 viewfinder telescope with adjustable crosshair illuminationImage sharpness and viewing characteristics lift this viewfinder well above the level of the usual 8x50 viewfinder scopes. The visible image is bright and crisply sharp. Furthermore, this viewfinder has a very large field of view (FOV) of 6.96 degrees. This makes finding and adjusting objects much easier. The existing scale markings (pitch=1 degree) on the crosshairs are a good reference for estimating distances, and the open centre markings also make it easier to centre objects precisely. All lens surfaces are protected against weathering by multi-coating and guarantee a bright viewfinder image due to the high light transmission values. The adjustable red LED illumination unit is powered by two LR41 coin batteries. The main lens and the crosshairs can be focused independently of each other, giving you perfect focus for your eyes.Compact tracking unit for autoguidingOne of the main applications for this telescope is the so-called autoguiding. Here the usually larger photo-taking optics are actively corrected by a smaller guiding telescope with a second tracking camera. This means that the mechanical fluctuations in the tracking accuracy, which are present in all astronomical telescope mounts, are measured by the tracking camera and compensated accordingly. This is necessary in order to obtain a point-shaped star image on the astrophotos during long time exposures and to avoid unwanted star trails. For this purpose, the guiding telescope is inserted into the existing viewfinder shoe of the photo-taking optics and aligned parallel. If the existing viewfinder shoe is not compatible, a suitable viewfinder shoe is also included. With the 1.25 inch / 31,7mm plug connection at the rear end or via T2 thread connection (M42x0,75mm), a tracking camera can be mounted afterwards. This is held securely by a brass ring clamp and 3 clamping screws. Please note the required back focus for your tracking camera. The focal plane (backfocus) is approx. 22mm behind the T2 thread. The sensitive focusing on the guiding star is done by a large knurled wheel of the mechanically precise manufactured helical focuser. For easy reproduction of the point of focus, this has a white millimetre scale from 0 to 28mm, which is attached by laser engraving. After the tracking camera has been connected directly or via computer to the telescope mount and the necessary basic settings have been made, the first astrophotos with long time exposure can be taken.Use as mini travel telescopeThis viewfinder and guide telescope can also be used quite simply as a mini travel telescope. With the optional eyepieces, a magnification of 8x to 40x can be achieved. Nearly all eyepieces with a focal length of 5 to 26mm and 1.25 inch/31.7mm plug connection are suitable. Especially recommended are the EXPLORE SCIENTIFIC eyepieces of the 52 degree (Art. 02195xx) and 62 degree (02196xx) LER series. Note: Only straight view use is possible.Metal viewfinder holder and viewfinder shoeThe mount of this viewfinder and guide telescope is completely made of aluminium and is a stable base. The viewfinder mount is suitable for many common types of telescopes, such as EXPLORE SCIENTIFIC, BRESSER MESSIER etc. If the existing viewfinder shoe is not compatible, a matching viewfinder shoe is also included. This can be attached to the telescopic tube by means of four M5 screws. The bore distances of the viewfinder shoe are 31.7mm on the longitudinal and transverse axis. The six large adjustment screws with non-slip knurling make it easy to align the viewfinder, even with clammy fingers. All adjusting and clamping screws have plastic tips that effectively prevent the viewfinder housing and viewfinder mount from being scratched.FEATURESExcellent 8x50 viewfinder and guiding telescopeCan also be used as mini travel telescopePerfect image sharpness and good viewing comfortFMC Multi-coated lens surfacesLens focal length: 220mmMax. possible camera weight: 550gRemovable eyepiece/cross hair unitCamera connection via 1.25 inch / 31.7mm plug connection or T2 threadT2 thread: M42 x 0,75mmPrecise helical focuser for focusing the visible imageFocuser travel range: 28mmClose focus distance: 3 mLaser engraved millimetre scale from 0 to 28mm on the focuserFocal plane (backfocus) is approx. 22mm behind the T2 threadSeparate focusing of the crosshair at the eyepieceVery large field of view FOV of 6.96 degreesWith adjustable red cross-hair iillumination Scale markings crosshair with 1.0 degree graduationPower supply of illumination unit: coin battery type LR41 (2pcs)Brass ring clamp and 3 clamping screws on the 1.25 inch plug connectionWith optional eyepieces magnifications from 8x to 40x can be achievedSuitable are almost all eyepieces with 1.25 inch/31,7mm shaftMounting of the viewfinder telescope is completely made of aluminiumViewfinder mount with 6 large adjustment screws with knurled head for easy gripFinder shoe suitable for EXPLORE SCIENTIFIC, BRESSER MESSIER etc.Additionally a suitable viewfinder shoe is includedBore distances of the viewfinder shoe are 31.7mm on the longitudinal and transverse axisAdjusting and clamping screws have plastic tipsSCOPE OF DELIVERY8x50 viewfinder/guiding telescopeEyepiece unit with crosshairCrosshair illumination unit incl. batteriesViewfinder holder with viewfinder shoeInstruction manual

Portable power storage (mobile power bank) in maxi format by BRESSER The energy you need in every situation: that's what the mobile Power Station 500 Watt by BRESSER offers you. Whether for tough outdoor use, van life, in the garden or the event of a power failure at home - with the various connection options, you can operate and charge almost all common electronic devices via the powerful and recharcheable 520Wh lithium-ion battery. Perfect for notebooks, musical instrument, etc.: The high-quality 230 volt 500 watt output with a pure sinus wave also supplies sensitive devices with power. In addition, this mobile power station is a silent and environmentally friendly alternative to power generators with combustion engines. In combination with a solar panel (available as an option), the built-in solar charge controller allows you to easily use the sunshine to directly charge your Power Station. The built-in Anderson input for direct charging via solar panel makes this particularly easy. Connection options Charge up to 4 x USB mobile devices such as smartphones, MP-3 players, mobile game paddles, cameras, drones, etc. at the same time. The device offers 1 x USB-A and 1 x USB-C fast charging output with Qualcomm Quick Charge 3.0 support. You can also power up to 5 x 12 volt devices with a total of 10 amps of current draw. Use 1 direct car cigarette lighter connector socket and 4 x DC 2.1/5.5mm connector sockets. With the 2 included adapters from 5.5/2.1mm hollow plug to cigarette lighter socket, you can connect car/camping devices such as refrigerators, water pumps, mini compressors, air pumps etc. directly and in parallel. In addition, 2 sockets with 230 volts and a total of 500 watts continuous power are available on the unit. Ideal for connecting chargers for notebooks/tablets/smartphones, mobile coolers and refrigerators, musical instruments, etc. or other electrical devices in this power class. The heart of the Power Station: the built-in battery The powerful 520Wh 43Ah/12Volt (140400mA/3.7V) lithium-ion battery reliably stores your energy reserve. It is charged within 8 hours with the included 230V charger or 12V car battery charging cable. Thanks to the built-in solar charge controller, you can also charge the Power Station directly using a solar panel (available as an option). A clear display shows you all relevant information such as the battery charge status, battery charging process, USB output ON/OFF and AC/DC output ON/OFF. Possible operating time with typical applicationsHow long does the Power Station charge or operate your devices? You can easily calculate the approximate operating time yourself: runtime (approx.) = Power Station 520 watt-hour battery x 0.85 / devices input power in watts.For example a notebook with 45 Watt input power: 520 Wh x 0.85 / 45 Watt = runtime in hours; 520 x 0.85 / 45 = 10 hours runtime.LED lamp with 5 Watt: approx. 88 hoursLED lamp with 10 Watt: approx. 44 hoursCamping cooler with 30 Watt: approx. 14 hoursNotebook with 45 Watt: approx. 10 hoursTV with 60 Watt: approx. 7 hoursSmartphone: 50 x chargingTablet computer: 30 x chargingDigital camera: 50 x chargingNotebook: 5 x charging Extensive electronic protection of all current inputs and outputs: The Power Station is protected against short circuit, overvoltage, over- and deep discharge of the battery and against overheating. Please note that for use with our astronomy mounts, such as the EXOS-2 Goto, the adapter cable 4930100 is additionally required. FEATURESPortable energy storage (Power Bank / Power Station)Self-sufficient power supply for outdoor, hobby and professional useCharging and operation of various electrical appliancesOperate or charge up to 11 devices at the same timePure sinus wave for both 230 volt outputsAlso suitable for sensitive devices such as notebooks or musical instrumentsMany connection options and adapters includedEnvironmentally friendly and silent alternative to power generatorsIntegrated solar charge controller for direct charging via solar panelComfortable carrying handle with non-slip rubber coatingPowerful 520Wh 43Ah/12 Volt (140400mA/3.7V) lithium ion battery3 x USB A with each 5-9 Volt 2.1 Ampere) and 1 x USB quick charge output with Qualcomm Quick Charge 3.0 support1 x USB C with 5-12 volts 3.0 amps (for smartphones and tablets of the latest generation)4 x 12 Volt DC out 5.5/2.1mm hollow plug (max. total load 10 Amps, short time 12 A)2 x 230 Volt AC out (500 Watt continuous power, short time 1000 Watt)Indication of battery charge status and USB/DC/AC output on/off staus on displayInput charging socket: 13-22 Volt / 6 Ampere (via power supply or solar panel)Built-in Anderson input for direct charging via solar panelCharging time 0-100% approx. 8 hoursTemperature range: from -10 to +40 degrees CelsiusLifetime/charging cycles: >500 times SCOPE OF DELIVERYPower Station with batteryCharger 230 Volt 6 amps230 Volt power cord for Europe (1 pc.)230 Volt power cord for UK (1 pc.)Car charger 12 VoltAdapter 5.5/2.1mm to cigarette lighter socket (2 pcs.)UK socket adapter for 230V output (2 pcs.)Instruction manual