EXPLORE SCIENTIFIC 8x50 90°PolarFinder+Amici-Prism

​The EXPLORE SCIENTIFIC Hybrid Finder Scope Base is designed to accept all legacy EXPLORE SCIENTIFIC and BRESSER Messier finder scope brackets and mini dovetail-type (e.g. Vixen, Synta, and many other brands) finder scope brackets. The base has rugged all-metal parts with black-anodized base and chrome-plated metal screws. Safety stops prevent the finder scope from sliding through and from falling when attaching screws are loosened. There are threaded holes on the left and right sides of the EXPLORE SCIENTIFIC Hybrid Finder Scope Base for desired access to attaching screws. Includes bolts and screws for mounting the base to the optical tube assembly. Direct replacement for all EXPLORE SCIENTIFIC and BRESSER Messier telescopes, allowing the use of a wide range of other-brand finder scope options.FEATURESDirect replacement for all EXPLORE SCIENTIFIC and BRESSER Messier telescopesAccepts all legacy EXPLORE SCIENTIFIC and BRESSER Messier finder scope bracketsAccepts also mini dovetail-type fittings from e.g. Vixen, Synta and many other manufacturersRugged all-metal parts with black-anodized baseIntegrated safety stopsIncludes bolts and screws for mounting the baseBolt hole spacing 32.5mm for mounting on telescope tubeSuitable for screw diameter M4/M5 SCOPE OF DELIEVERYHybrid Finder Scope BaseBolts and screws for mounting

BRESSER Full HD Deep Sky Camera with autoguider: a great camera for different types of astrophotography and for autoguiding. Not only suitable for planets, but also for deep-sky objects such as galaxies, nebulae and star clusters. Dedicated ToupSky Astro Imaging software supports video preview, video recording, video processing, image capture and processing, dark field correction and raw data output. Easy to use, but with professional results. One of the main features of the new backlit SONY IMX290 CMOS sensor is its high light sensitivity, which makes it possible to detect deep-sky objects without active cooling. SONY has increased the quantum efficiency at 533 nm wavelength up to 77%, which is much better than other CMOS sensors have been able to achieve in the past. Connect this camera to a guidescope and attach the camera's built-in ST-4 port, directly to your telescope's equatorial mount guide port and autoguide - using many popular audioguiding programs (PHD, Guidedog and more). Autoguiding enables you to take accurate pictures with long exposure times of several minutes. Thanks to the extra light-sensitive camera, you now always have a suitable guide star to hand, even using short exposure times. An ST-4 protocol connection cable is also included. Simple automatic tracking at its best. You can use this camera with all guiding telescopes, or off-axis guiders that accept a 1.25 " tube, 1.25" filter thread (M28.5x0.6) or C-mount adapter thread (1 "x1 /32"). IMPORTANT NOTES: This is not a stand-alone guider camera. You always need a Windows 10/11 computer to take pictures and for autoguiding. The autoguider software is not included. You can use PHD2 Guiding, Guidedog, Metaguide, Guidemaster (freeware) or AstroArt, MaxIm DL (paid). DOWNLOAD PHD2-Guiding: https://openphdguiding.org/ DOWNLOAD GuideDog: http://barkosoftware.com/GuideDog/index.html DOWNLOAD latest camera software and drivers: https://www.touptek-astro.com/downloadsDownload INDI Driver: https://github.com/indilib/indi-3rdparty/tree/master/indi-toupbase SPECIFICATIONS Camera type: BRESSER / Touptek GPCMOS02000KPA color Sensor: SONY IMX290 CMOS color, backlit Image and video size: Full HD 1936 x 1096 pixels (video 15 FPS) Native sensor size in pixels: 1936 x 1096 Exposure times: 66µs to 16min Binning: YES, 2x2 Megapixel: 2.1 MP Sensor size in mm: 5.6 x 3.1 Pixel size: 2.9 µm x 2.9 µm Bit depth: 8/12 switchable ST-4 Compatible Autoguider: YES CNC milled housing made of aluminum Protective strap on the camera housing Camera tube diameter: 1.25 "(31.7 mm) Camera connection thread: C-mount + 1.25 "filter thread Computer interface: USB 2.0 C-mount extension tube with 1.25 inch filter thread included No IR cut filter installed Operating system: WINDOWS 10 + 11 ASCOM driver included Field of view for different focal lengths in mm (given in arc minutes): 400mm - 48.2 'x 27.3' 500 mm - 38.6 'x 21.8' 600 mm - 32.1 'x 18.2' 700 mm - 27.5 'x 15.6' 800 mm - 24.1 'x 13.6' 900 mm - 21.4 'x 12.1' 1000 mm - 19.3 'x 10.9' 1250 mm - 15.4 'x 8.7' 1500 mm - 12.9 'x 7.3' 1750 mm - 11.0 'x 6.2' 2000 mm - 9.6 'x 5.5' SCOPE OF DELIEVERY Full HD camera C-mount adapter USB 2.0 PC connection cable with a length of 200cm Interface cable for ST-4 autoguider port with 150cm length Dust cap for camera tube Software CD

The BRESSER Erudit ICD microscope is a stereo dissecting microscope and gives a threedimensional view. This is especially impressive when viewing structured materials.WIth the maximum object height of 53mm you can view also bigger objects. The microscope is perfect for a variety of objects, like plants, insects, geological handpieces, etc. The Erudit ICD is also the perfect choice for children, because there is no need for tedious and difficult sample preparation. Simply place the sample on the object plate and view the finest details! The black/white object plate gives good contrast when viewing with incident light. With battery power the microscope is ready for your next excursion or field work, or use it anywhere around the house. With the sturdy carry case it is easily transported or stowed away.FEATURESType: Stereo microscope / dissecting microscope with incident and transmitted lightApplications: Biology, botany, insectsBlack/White-Object plate for optimized contrastGlass object plate, 94mmRubber eye cups for comfortable viewing, reduces stray lightSmartphone holder for conveniant documentationLong life LED lighting, battery powered. Use anywhere, e.g. for field workAdjustable binocular head, diopter adjustmentSturdy carry caseSPECIFICATIONSMagnification: 20x, 40xStereo-ObjectiveEyepiece barrel diameter: 30,5 mmBattery powered (3x )Type AASCOPE OF DELIVERYStereo dissecting microscope with transmitted and incident light2x wide field 10x eyepiecesStereo objectives, 2x/4xGlass object plate, clear glass Black/white object plateSmartphone holderPlastic carry case

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 6'' dobsonian is simply a breakthrough. Despite of its low price this telesccope offers a versatility and quality rivaling a lot more expensive telecopes. Not only for beginners - also enthusiastic and experienced amateur astronomers love this high perfomance and compact telescope for traveling and to discover the night sky. The main goal of this telescope is the quick setup and the ease of use. Simply put the Messier 6'' Dobson telescope on a table in your backyard, point the telescope to your target object and you are ready to start your observation. The Messier 6'' Dobson is almost pre-assembled ex factory which means you can start within minutes. With the included standard accessories (LED-finder, 25mm and 9mm Kellner eyepieces and Moonfilter) the telescope is ready for observing. The inbuild compass and circular level speeds up the telescopes orientation. The optical diameter of 150mm (6'') 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. Finding and observing is much easier with that light gathering richfield telescope. Bresser also has equipped these dobsonians with a high quality parabolic main mirror which offers a much better scharpness and contrast than other telescopes with a simple spherical main mirror. In addition, this telescope has a particularly large secondary mirror of 55mm in diametre for ideal illumination of the image field. The 6'' Dobsonian is also equipped with a large 2.0'' focuser, which allows the use of 2.0'' eyepieces with even larger fields of view. Due to the included eyepiece adapter 2'' to 1.25'', all 1.25'' eyepieces can of course be used. The optical tube can easily be moved inside the tube rings in order to find the optimal balance and observing position. This is another virtue of this highly versatile telescope system: Remove the optical tube from the dobsonian telescope mount and use the optics on a equatorial mount - in minutes. 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: 150 mm / focal length: 750 mm / F/5Maximum recommended magnification: 300xtelescope for night and solar observation 2.0'' rack & pinion focuser primary mirror made from optical glass large 55mm secondary mirror  many accessories included - ready to use pre-assembled ex-factory easy to move the tube optics can be attached to other mountings SCOPE OF DELIVERY parabolic Newtonian reflector aperture solar-filter dobsonion telescope mount  LED viewfinder (battery included) 25mm and 9mm Kellner eyepieces (Ø 31.7 mm / 1.25'') moonfilter (Ø 31.7 mm / 1.25'') 1 eyepiece adapter Ø 31.7 to 50.8 mm (Ø 1.25''/2.0'') 2 tube clamps with GP dovetail adapter 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

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

Take a look through the new Vixen BT-81S-A binocular telescope. This model is ideal for observing gas nebula, star clusters and comets. The magnesium fluoride coating reduces chromatic aberration and the large aperture of 81 mm ensures a razor-sharp, contrast-rich image. Weighing just 4.1 kg, the BT-81S-A binocular telescope is very transportable. FEATURES Objective lenses: 81 mm 2-lens achromat, multi-coated Focal length: 480 mm (f5.9) Resolution and limiting magnitude: 1.43 arc seconds; 11.3 Light-gathering power: 134x Dimensions and weight: 480 x 190 x 155 mm; 14.0 kg Adapter and connections: 31.7 mm clamp WHAT’S INCLUDED HF2 fork mount SXG-HAL130 tripod Carry handle finder shoeDew caps 2 SLV 20 mm eyepieces Swing bracket binocular cradle