EXPLORE SCIENTIFIC Truss Dob Counter Weight Set

Ultra Light Dobsonian 254mm GENERATION II - with completely redesigned and improved construction.No telescope type has influenced amateur astronomy as radically as the dobsonian telescope. Before the introduction of this telescope type by John Dobson the vast majority of amateur telescopes were small inadequate refractors on shaky mounts - just good enough to show the polar regions on mars or the rings of Saturn. Bigger telescopes, like the Schmidt-Cassegrain telescopes, were restricted to the relatively small group of amateurs that could afford them.The brilliant combination of simple - but effective - mechanics and the largest aperture available led to a worldwide triumph of this concept. No other telescope type offers you so much light for your money as a good dobson. We have taken the motto "held together by gravity and driven by yoghurt power" and offer a modern version of the classic - designed by amateur astronomers for amateur astronomers. Despite its large aperture the telescope can be transported easily even in small cars and is assembled within minutes without tools. The construction was optimized for maximum rigidity with a minimum of mass. The combination of big altitude wheels and a optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept our coma-corrector. The ideal workhorse for the deep-sky enthusiast. A telescope with 254mm aperture gathers more than 1300-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers, and countless deep-sky objects show details. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience.Dimensions for mobile use: Rockerbox 395mmx395mmx310mm; Mirrorbox 330mmx330mmx295mm; Trusses approx.700mmEyepiece Height while pointing at zenith approximately 1,15m; 10“ Net total weight: 26,4 kg; 10“ Mirror Box: 14 kg; 10“ Secondary cage +Rockerbox: 9,7kg; 10“ 4 Pairs of trusses: 1,5kg; 10“ Altitude Wheels: 1,2kg ; Focuser thread: M54 x 0.75 mm. Backfocus: 45mm behind the 2" eyepiece holder. 35mm when the 1.25" adapter is mountedSPECIFICATIONS Truss-Dobsonian Telescope in full Aluminium constructionNEW: Slider bearings made from TEFLON und GFK for smooth and precise movementNEW: Improved main mirror cell with completely redesigned mechanicsNEW: Altitude bearings with new designed brake and friction systemNEW: Universal finder slot to enable an easy finder upgradeNEW: Quick-lock fasteners with new springloaded design for comfortable useNEW: Powder-coated yellow altitude wheels to improve durabilityNEW: Laser engraved central mark on main mirrorSCOPE OF DELIVERYTruss Dobsonian TelescopeLED finder with standard finder slotStray light shield for secondary cageMain mirror collimation toolBattery compartment with bag for fansExtension tube for focuserReducer 2"/1.25"Manual

​Vixen finder shoe for attaching a Vixen-profile finder bracket to your telescope (also works with many other finder brackets).PROPERTIESVixen standard connectionFixing with two screwsWHAT'S INCLUDEDVixen finder shoeFastening screws

The BRESSER MikroCamII microscope cameras help to make photos and videos with a microscope very easy. The modern Sony® CMOS sensors give brilliant colours with very low noise and is the perfect choice for any application where true natural colours are important. The included imaging software has multiple adjustments for the capture of still images and videos. The integrated measuring* routine allows for a measurement in the camera live image. The software can be operated in the following languages: German, English, French, Polish, Russian, Turkish, Chinese. The camera housing includes the c-mount adapter thread. For use with 23.2 mm adaptations, we recommend the optional, variable 0,5x reducer (item no. 5914005). For special applications, the camera can also be mounted using the 1/4'' camera tripod thread. The BRESSER MikroCamII are equipped with a USB 3.0 port, compared to the MikroCam SP. This enables up to 8 times faster data transfers to the PC compared with the USB 2.0 standard. The camera is able to deliver more than 25 frames per second (depending on resolution, exposure time and PC performance). This is especially important when observing live microorganisms. In addition to this, the camera is exceptionally sensitive. Even in low light conditions (high magnifications, contrast methods) the camera can be operated with short exposure times. FEATURESHigh quality metal housingNumerous software functions, e.g. measurement, focus-stacking (combines several images for more depth of focus), mosaic (for larger image fields)Image and video capture, incl. time-lapse functionGood compatibility with different microscopesHighspeed USB 3.0 connectionModern Sony® IMX226 sensor 7.53 mm x 5.64 mm (1/1.7'') SYSTEM REQUIREMENTSWindows 10 or 11Intel i3, i5, i7 or i9 CPU from the 6th generation orAMD Ryzen CPUOptical Disk Drive or internet connection for software downloadUSB 3.0, 3.1 SCOPE OF DELIVERYCamera head, USB 3.0 cable 23.2 mm adapter, 30 mm and 30.5 mm adapters capture and image processing software

The BRESSER Space Explorer 150/750 telescope with an EQ-3 mount shows you the night sky in stunning detail. Go on a journey into distant worlds: Thanks to the combination of a large 150 mm aperture and a short 750 mm focal length, you can marvel at a vast array of celestial objects such as large nebula, open star clusters or the Andromeda galaxy. The powerful Newton reflector telescope is also great for observing our own solar system: with the 25-mm Plössl eyepiece, you can view the moon in 30x magnification. The premium parabolic primary mirror produces significantly sharper images and better contrasts than a comparable telescope with a simple spherical mirror. In addition, the telescope also has a large 55 mm secondary mirror that illuminates the field of view perfectly to create a bright image. Portable design - with 150/750 reflector telescope Can’t wait to get out of the house to view the Orion Nebula or the Pleiades? With this telescope, you can search for the perfect observation spot: thanks to the short focal length, the tube is short and easy to transport. In addition, the premium equatorial mount allows even beginners to set up the telescope in no time. Tracking is also very simple – you can compensate for the earth’s movements manually so that your observed objects stay within the field of view. To ensure maximum viewing comfort, the focuser on this Newton reflector telescope is attached to the side of the tube. The aluminium tripod is height-adjustable and features an accessory tray so that you can keep all your important gear within reach. The 6x30 finder scope with reticle allows you to align the telescope with objects in the night sky. The reticle indicates the position at which your telescope is pointing. If you want to capture images of your nighttime discoveries, you can connect your smartphone to the telescope via the smartphone camera adapter. Discover the fascinating night sky with the BRESSER Space Explorer 150/750 telescope! FEATURES Reflector telescope for nighttime observations Optical system: Newton reflector (parabolic primary mirror) Lens diameter: 150 mm Focal length: 750 mm Max. useful magnification: 300x Aperture ratio: f/5 Simple tracking by hand Mount: EQ3, equatorial Height-adjustable aluminium/stainless steel tripod with accessory tray DELIVERY CONTENT Tube EQ3 mount Height-adjustable field tripod Plössl 10 and 25 mm eyepiece 6x30 finder scope Smartphone holder Instructions with warranty information

The new BRESSER Messier 12" Dobson enhances this well-liked telescope series while providing great portability due to its lightweight fibreglass telescope tube. Despite its low price, it offers a variety of functions as well as quality that you would not find in considerably more expensive devices. Thanks to the powerful telescope aperture of 305 mm, you get significantly more light-gathering capacity than with the smaller models and are therefore not limited to observing the moon and the planets of our solar system - you can already look far out into the universe and observe globular clusters, nebulae and galaxies with even greater brightness. Details become visible in most deep-sky objects: globular clusters are clearly resolved into individual stars and gas nebulae, which can only be guessed at with smaller devices, show structure. The device is unrivalled in its versatility: The excellent large Hexafoc focuser has an aperture of 65 mm - so there is no noticeable obstruction from the focuser tube even with large wide-field eyepieces. Thanks to the large altitude wheels, even these heavier eyepieces are held effortlessly. And if a particularly large number of accessories is attached, such as a binocular attachment, then the entire tube can be moved inside the tube clamps - and everything is balanced again in a flash. The unrivalled rigidity of the focuser makes focusing easy - so photography with this tube is also possible. This is another strength of this universal telescope: if you want to take photos, you can simply unscrew the altitude wheels from the tube and attach it to an equatorial mount using a dovetail bar - so there's nothing standing in the way of astrophotography. An optional 10:1 gear reduction for the focuser is available for the highest demands. Considering that the focuser is the most frequently used part of the telescope, the use of the Hexafoc in this device is a quantum leap for this price range. With the initial equipment, you can start observing immediately - a 6x30 finder and a 25 mm SPL eyepiece are included in the scope of delivery. Various other viewfinder types can also be retrofitted using the 2 new hybrid viewfinder shoes (Art. 0620158) supplied as standard. In addition, the new 12" BRESSER Messier makes it easy to transport the device as compactly as possible - the rocker box can be dismantled in a few simple steps because the parts are assembled with metal quick-release connectors. This quickly turns a bulky rocker box into a handy flat package of individual parts. A telescope whose versatility, performance and user-friendliness set new standards in this price class. Includes a high-quality objective solar filter for safe observation of sunspots, eclipses and planetary transits. A BRESSER premium telescope for night and solar observation. NOTE: Please note that "Newtonian" reflector telescopes are very good for astronomical observations in the starry sky, but are not well suited for nature and landscape observations during the day. We therefore recommend BRESSER refracting telescopes for nature and landscape observations. FEATURESType: Reflector telescope Telescope for night and solar observation Lightweight but very stable GRP telescope tubePrimary mirror diameter: 12" (305 mm) parabolic main mirror Focal length: 1,525 mm Aperture ratio: f/5 Maximum useful magnification: 610x Theor. resolving power: 0.45 arcseconds Easy to balance the tube by sliding it inside the tube rings Visual limiting magnitude: 14.5 mag Tube: GRP tube with adjustable tube rings and aluminium altitude bearings Focuser: 2.5" HEXAFOC focuser with 2" and 1 1/4" adapter Shifting-free focusing even with heavy accessories Secondary mirror bracket: very thin 4-arm steel spider Tube rings and altitude wheels made from aluminumDifferent sized adjustment and counter screws on the mirror cell Use of the optics also on EQ mounts (with optional dovetail bar) Mount: Dobsonian system Dismantlable rocker box Accessory tray for one 2" and two 1 1/4" eyepieces, mounted on the front side Eyepiece: BRESSER Super Plössl 25 mm (1 1/4") Viewfinder: 6x30 viewfinderHybrid viewfinder shoes (Art. 0620158) included (2 pcs)Tube weight without accessories: 16 kgTube weight with accessories: 18.9 kg Rocker box weight: 14.8 kg Total weight: 33.7 kg Overall dimensions: 60 x 60 x 163 cm SCOPE OF DELIVERY Tube with Newtonian optics Aperture solar filter 6x30 viewfinder Hybrid viewfinder shoes (2 pcs)25 mm Super-Plössl eyepiece (Ø 31.7 mm / 1.25") 1 extension tube 37.5 mm for 2.5" Hexafoc 1 eyepiece adapter Ø 31.7 to 50.8 mm 2 tube rings 2 altitude wheels Rocker box with 2 base plates and mounting material (disassembled for self-assembly) Shipping dimensions Box 1: 150 x 53 x 50 cm - 24 kg Shipping dimensions Box 2: 61 x 61 x 24 cm - 17 kg

Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. 3-lens apochromatic telescope with FPL-51 glass, 130mm aperture and 910mm focal length - excellent image quality for H-Alpha solar observation and also for observing the starry sky at night. With innovative air pressure tuning system, good 2 inch (50.8mm) R&P focuser, and B1800 blocking filter. Solar observing in H-alpha: The LS130MT/B1800 is a complete telescope for observing the sun in H-alpha light, with 130mm free aperture (no central obstruction) and 910mm 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 internal Etalon filter achieves a bandwidth of <0.7 Angstrom with the innovative air pressure tuning system Pressure-Tuner. Tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to tune to the H-alpha line. The pressure tuner guarantees a homogeneous image, without central obstruction, and a permanently protected Etalon without erosion. A set of collimating lenses installed in the telescope ensures best performance. Fine adjustment is achieved with a solid 2 inch R&P focuser with 10:1 reduction. Blocking-filter is the B1800. The B1800 is good for visual solar observing and also solar imaging is possible by cameras with small to large sensor chips. We recommend a LS130MT with B3400 blocking-filter by using cameras with very large sized sensor chips. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepieces and with a T2 camera connection. Observing the starry night sky: The H-Alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. Then the 3-lens apochromatic refractor can be used as a normal telescope with 130mm aperture and 910mm focal length for observation and photography of the night sky. The FPL-51 triplet lens offers an outstandingly low colour aberration image. Common 2 inch star diagonals can be used at the R&P focuser of the telescope. Please note that the optionally available conversion kit 0551696 is only absolutely necessary for the LS130MT version with B3400 blocking filter if the telescope is also to be used at night. The conversion kit is not required for the versions with B1200 and B1800. More applications: With additionally available accessories the LS130MT offers even more possibilities! - Double-Stack The LS130MT telescope can optionally be upgraded with the additionally available double-stack module LS130MT/DSII (item number 0551690). The DSII system is a internal double-stack module with Pressure-Tuner. Thereby a bandwidth of <0.5 Angstrom is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible. - Solar observing in White-Light If the H-alpha unit has been removed, of course either a sun filter can be installed in front of the objective, or a Herschel-wedge at the focuser can be used to observe the sunspots in White-Light. - Solar observing in Ca-K wavelengthThe additionally available "LUNT Ca-K Filter Module for LS130MT" (item number 0551697) can be used on the LS130MT to observe and photograph super-granulation and other effects visible at this wavelength on the sun. This makes the LS130MT a completely universal usable apochromatic telescope of highest quality! FEATURES 3-lens APO refractor, FPL-51 Aperture: 130mm (no central obstruction) Focal length: 910mm Bandwidth: internal Etalon with <0.7 Angstrom Tuning: air pressure tuning system Pressure-Tuner Blocking filter: B1800 with 1.25" and T2 connection Focuser: R&P with 10:1 reduction Two tube-ring with handle Sol-Searcher installed inside handle Dovetail bar at GP-level for astronomical mounts Weight: 12.1kg Length with blocking filter and dew-shield: 100cm Length without blocking filter and removed dew-shield: 80cm SCOPE OF DELIVERY LS130MT Multipurpose Telescope Pressure-TunerB1800 blocking filter in star-diagonal housingTube extension for using without H-alpha Etalon 2 inch R&P focuser with 10:1 reduction Tube rings with dovetail bar Transport case (92 x 42 x 35 cm) Instruction manual

Red polar viewfinder illumination unit for BRESSER EXOS-2 mounts with fixing thread M8x0.75mm. An adjustable illumination makes it easier to find the marked sky objects on the polar viewfinder.IMPORTANT NOTEPlease verify the type of fixing thread prior to your purchase. We offer two different sizes: 12mm (part No. 4964211 for older EXOS-2 mounts) and 8mm (part No. 4964212 for newer EXOS-2 mounts)FEARTURESRetrofittable red pole finder illumination for BRESSER EXOS-2Illuminates the graticule in the viewfinderMakes it easier to find the celestial objectsAlso for 4900850 BRESSER 8x50 viewfinder as spare partAlso for Explore Scientific 8x50 viewfinders as spare partSCOPE OF DELIVERYPolar Viewfinder Illumination unit for EXOS-2Fixing thread M8x0.75mm