EXPLORE SCIENTIFIC 1.25" S-II Nebula Filter 12nm

One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar systems enormously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artificial light. The EXPLORE SCIENTIFIC UHC filter uses a characteristic property of the so called emission nebulae. Those objects glow in special colours, their emission lines. Those emission lines are linked to chemical elements - in this case hydrogen at 486nm and 656nm, plus oxygen at 496nm and 501nm. The Explore Scientific UHC nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the emission line of the hydrogen and oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburban skies for example the Owl-nebula M97, the Veil-nebula NGC6992 or even the bright Dumbell-nebula M27 are not clearly visible. By using this filter you can see the nebulae and their structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.FEATURESenables the observation of emission nebulaeblocks almost the entire artificial lightonly the two emission lines of hydrogen and oxygen passes the filterWHAT'S INCLUDED1x 1.25" UHC nebula filter

Do you already own a photo camera and would like to create impressive pictures of the night sky with the help of the long exposure or even make time-lapse pictures with little effort ? The BRESSER photo mount is the ideal base. Not only for beginners in astrophotography, this mount is particularly well suited, but also the experts swear by a compact and easy-to-use mount to automatically compensate for the natural rotation of the earth. The built-in tracking motor rotates the saddle-mounted camera precisely against the earth's rotation and thus the stars remain punctiform even with long exposures. Which cameras are basically suitable for use with the BRESSER photo mount ? All cameras with ¼ inch (6.3mm) tripod connection thread and bulb length" B "for long exposure are suitable. The BRESSER photo mount is designed for a camera with lens of max. 2.5 kg total weight to carry and track. Large aperture, wide-angle lenses are ideal for the beginning, because the requirements for tracking accuracy accumulate with increasing focal length and exposure time. Thus, a shot with wide-angle lens can be exposed for up to several minutes and the stars remain punctiform without problems. For example, with a 200mm telephoto lens the polar alignment of the photo mount must be exactly right. But thanks to the optical pole finder, this is done quickly.  After setting up the light and compact photo mount, simply set the approximate latitude (pole height) to the scale and aim Polaris through the illuminated pole finder scope. Then mount the camera with the photo lens using the quick-release plate on the supplied ball head. With the ball head, the camera can be aligned and determined at any time on any section of the sky. As soon as the tracking motor is switched on, long-time exposure can be started immediately. This does not even take 5 minutes ...  The tracking is carried out by a precise stepper motor, which can also be moved via the hand box with 2- or 32-fold speed in forward and reverse. Thus, the sky section can be adjusted even more precisely. Low power consumption allows up to 50 hours of operation with just one battery charge.  The height-adjustable stainless steel tripod with polar wedge is an extremely stable base for the BRESSER photo mount. Thanks to the integrated circular level in the tripod head even the leveling of the photo mount is child's play. If you already own a sturdy photo tripod with a video tilt head you can use the photo mount's head directly with the 1/4 inch & 3/8 inch photo thread holes. The pole height (latitude) is then adjusted by the video tilt head. The photo-mount and the tripod with polar wedge are also available separately - Product No.: 4964111 and 4964112   FEATURESEquatorial Photo-MountAdjustable stainless steel field tripod with polar wedge and bubble levelAutomatic siderial tracking against the Earth rotation Handbox to control the tracking motors (2x/32x)Suitable for northern and southern henisphereOptical pole finder scope with illumination unit includedBallhead with quick release saddle plate and 1/4" Photo thread for Kamera mountingPhoto-Mount with 3/8" threaded bolt for ballhead mountingPhoto-Mount with 1/4" und 3/8" inner threads for tripod mountingHigh precision stepper motor with helical gear for accurate tracking Large screws and handles for easy usage at night  Battery operation or stabilized power adapter (optional acc.) Battery life: up to 50 hoursPower connector at handbox: 6 volts DC jack 5.5/2.5mm (positive pole at center pin)Weight Photo-Mont with ballhead: 1.4 kg Weight tripod with polar wedge: 3.5 kgLoad capacity of Photo-Mount: up to 2.5 kg Height of camera sattle plate max. 140 cmSCOPE OF DELIVERYFoto-Mount headTracking motor with HandboxUltra-stable stainless steel field tripod with bubble levelBallhead with quick release saddle plate Pole finder scope with illumination unitBattery compartment 6 volts with case (no D-batteries included)Manual   

With the set of the BRESSER Messier NT-203/1000 Telescope and the EXOS-2 PMC-Eight GoTo mount, you are perfectly equipped for impressive planetary and deep-sky observations or photography. The optics, with a parabolic primary mirror, large aperture, and long 1,000-mm focal length, reveal fine details on planets and fascinating structures in distant galaxies. Additionally, you can admire the surface of our own star during the day with the secure solar filter. The powerful GoTo mount and app ensure precise tracking during your observations and astrophotography sessions, as well as easy orientation and navigation in the sky. The Telescope The BRESSER Messier NT-203 Telescope is equipped with a parabolic primary mirror, allowing observations that were unattainable in this price range just a few years ago. Modern manufacturing technology enables you to track the shadow of Jupiter's moons on the planet itself; the range of structures and details on Jupiter's surface is breathtaking. The BRESSER Messier NT-203 not only excels at planetary observation: Discover structures in distant galaxies and be fascinated by the filaments of emission nebulae in the vastness of the Milky Way. With the BRESSER Messier NT-203 Telescope, you can observe the remnants of exploded giant stars and the birthplaces of new stars. During the day, you can safely observe sunspots, eclipses, and planetary transits with the secure solar filter. (Warning: Never point the telescope at the sun without a solar filter!) Let yourself be surprised by the wonders of the universe with this exceptionally large device! The Mount The EXPLORE SCIENTIFIC EXOS-2 PMC-Eight GoTo Mount is equipped with a modern and highly precise GoTo control system. It consists of a robust Wi-Fi controller unit that provides all necessary interfaces. The NEMA-11 stepper motors are directly connected to this unit via cable, and an ST-4 compatible autoguider port is also included. The control system supports micro-stepping for precise tracking. Intuitive operation via app and graphical star map The ExploreStars app, developed specifically for the PMC-Eight system, impresses with a very well-designed, intuitive graphical interface. The current alignment stars for initializing the control and all sky objects in the database are displayed as a star map with additional text information. All of these objects can be conveniently viewed and selected. Powerful controller unit with Open GoTo for customization The heart of the controller unit is a completely autonomous 2-channel multi-processor with 8 CPUs and a Wi-Fi Ethernet 10/100 adapter with IP functionality. This allows remote control via browser, ASCOM, app, or serial connection. The Open GoTo system also enables custom firmware to be written and uploaded to the controller unit, allowing individual customization of the device's functions and the creation of your own object lists, etc. Polar scope included The pre-assembled polar finder scope included in the set enables a quick and precise polar alignment, allowing long exposure times without unwanted star trails. The integrated LED illumination unit further enhances the comfort of using the polar finder. FEATURES TELESCOPE Type: Reflector telescope Mirror diameter: 203 mm / Focal length: 1,000 mm / F/5 Maximum useful magnification: 406x Telescope for night and solar observation High-quality Hexafoc focuser with 2.5" free inner diameter Diffraction-limited optics with parabolic primary mirror 8x50 finder with crosshair eyepiece Optimized finder bracket for comfortable viewing Handle for easy transport with integrated camera holder (tripod thread screw) Smartphone adapter for sky navigation included Prism rail with stainless steel clamp surface (44-mm universal dovetail for GP/EQ5/LXD75) T2 adapter for SLR cameras (optional T2 ring required) 50.8 to 31.7 mm adapter with integrated T2 adapter (optional T2 ring required); with brass compression ring FEATURES MOUNT Powerful PMC-8 Open GoTo system User-friendly and visually appealing ExploreStars OpenGoto app Wi-Fi control via tablet, notebook, or desktop PC with at least a 7" display and Wi-Fi functionality (not included) Compatible operating systems: WIN8.1, WIN10/11, iOS, or Android 4.4 and higher Classic control via direction keys or joystick for guiding, centering, correcting, and moving via touchscreen Intuitive 2-star and 3-star alignment for initializing GoTo control Multi-processor microcontroller with 8 CPUs (processor cores) Micro-stepper motors NEMA-11 Highly precise and quiet belt drive ST-4 compatible autoguider port ASCOM drivers available, also supports pulse guiding Possibility to create your own firmware and object lists and load them into the PMC-8 GPS compatible / settings depend on the computer or tablet used Powered by 12-volt DC, with a maximum current draw of 1.6 amps under full load SCOPE OF DELIVERY Optical tube with Hexafoc focuser Solar filter 26 mm Super Plössl eyepiece (31.7 mm / 1.25") Integrated 31.7 mm and T2 adapter Prism rail with stainless steel clamp surface Adapter for 50.8 mm (2") eyepieces Rotating star map Solar filter Tube rings with carrying handle and camera holder 8x50 finderscope Smartphone adapter for navigation Astronomy PC software Stellarium (via download) EXOS2-GT mount with Open GoTo PMC-8 Stainless steel tripod with built-in bubble level Counterweight 2 x 4.5 kg Polar finder with illumination unit Power supply 12 volts / 2 amps ExploreStars app via software download Instruction manual

Universal Dark-Sky Filter with 77mm thread for photo lens. Contrast enhancing filter for Aurora- and Deep-Sky imaging. Especially during Aurora imaging the most important wavelength of 550nm (green) and 630nm (red) this filter let pass by 90%. In comparrision to CLS filters, the Explore Scientific Dark-Sky Filter is blocking also the yellow Sodium (Na) wave at 590nm which elliminates Sodium-lamp street illumination from your picture. This is very useful because the yellow light is always a partially mix of green and red light. Removing the yellow wave-length with any image processing software will always damping also the green and red coloring. For Aurory imaging this is of course not wanted. At these days of increasing light pollution, the Explore Scientific Dark-Sky Filter is absolutely recommended in order to take pictures also from urban conditions. Finally the slim housing design enables its use also with wide-field photo lens and doesn´t cause any vignetting. Pictures at night taken by Bernd Pröschold - www.sternstunden.netTest report:  http://www.sternstunden.net/filter-testing.html  FEATURES Deep Sky Filter Contrast enhancer for Aurora- and Deep-Sky imaging Wide field imaging of the milky-way, time lapse and landscape Lightpollution damping filter Ellimintates the yellow light which can´t be done by any imaging processing software Black anodized filter housing 77mm filter thgread for foto lens flat design of only 4mm height (slim) - no vignetting Ideal also for wide field foto lens Made from optical glass with Neodymoxid SCOPE OF DELIVERY Deep Sky Filter 77mm Dust protection case

Filter Set 3 is recommended for Moon & Planets from 150mm (6") Aperture Set 3 includes the following filters: Explore Scientific Filter 1.25" Light Blue No.82A - 0310265 The color of light blue really supports watching the high clouds on Mars. The contrast increases. The dark red structures will be shown even darker, so this is the perfect filter for watching the big red Flecks on the gas planet Jupiter. The rings of Saturn will be accentuated, the structures of the Venus Atmosphere will be even finer. Explore Scientific Filter 1.25" Violet No.47 - 0310272 The purple filter is perfect for watching Venus. Seeing through it, the dark clouds of the Venus atmosphere become even better visible. He also clears up the structures of the rings around Saturn. Using big openings and having a clear sight this filter is also good for watching Merkur. Explore Scientific Filter 1.25" Light Red No.23A - 0310271 The blue/blue green light is totally blocked. The contrast between the card and the lighter zones will enormously increase. This is truly helpful when you watch Jupiter or Saturn. Or for mars, watching the poles. Explore Scientific Filter 1.25" Yellow-Green No.11 - 0310269 Watching the Moon surface through the filter, the contrasts will enormously increase. Same with planet Mars. On the huge planet Jupiter, when using the filter, you can even see the contrasts between the cloud-bands and a lot more details. Starting with a telescope diameter of 8“ and a clear sight, you even get to see various details of Saturn. What ist a color Filter for and do we really need it? Color Filters darken the light slightly, that reaches the eye or the sensor of the camera. This eliminates for instance stronger transitions. The result is that your picture turns out with more contrast which automatically shows more details. FEATURES Made from high-quality optical glass Filter glass is absolutely parallel All optical surfaces have anti reflex coatings Filter housing from black anodized aluminum Filter threads on both ends (female/male) Multiple filters usage is possible SCOPE OF DELIVERY 4pcs color filter 4pcs protection-case

With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body. Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing. All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.

Enter the world of astrophotography now. With the new BRESSER HD moon and planet camera with ST4 autoguider function. This camera is very good for astrophotography with short exposure times, i.e. for celestial objects like the moon, planets or star clusters. For astrophotography with long exposure times for low light deep sky objects, like galaxies and gas nebulae, we recommend the BRESSER Full HD Deep-Sky Camera (Art. No. 4959050) instead, with it's even higher resolution and sensor sensitivity. Equipped with the new high-sensitivity SONY IMX225 CMOS colour sensor, the BRESSER HD moon and planet camera delivers amazing image results with very short exposure times, even with simple telescope equipment. In addition, this ultra-modern camera can also be used as an autoguider, e.g. to actively track the main imaging device with SLR or CCD astro camera. A universal CMOS colour camera that delivers super-sharp lunar and planetary images in particular. The particularly low noise level of this new chip generation from SONY, ensures an exceptionally high brilliance and no cooling is required. Due to the high native pixel resolution of 1280x980, together with suitable telescopes, very beautiful images of the moon, but also detailed planetary images are possible. The ToupSky pro software included in the scope of delivery not only offers the necessary basic functions for image and video recording, but also many helpful special functions for image post-processing and for setting up the Guider. Functions such as live image display, exposure settings, white balance, dark image capture, stacking, timelapse recordings and much more can be individually configured. Especially the very sophisticated software makes it really easy for you to get started in astrophotography. With the automatic settings, you can produce absolutely presentable results without much prior knowledge. If you wish, simply switch off the automatic settings and gradually venture into the individual professional settings. Connect the camera directly to the ST4 connector of your telescope mount and you have fully automatic tracking control. This makes long exposures of several minutes possible without the stars producing unwanted line marks due to the ever-present synchronisation fluctuations of a telescope mount. A corresponding ST-4 connection cable is even included with the camera. Due to the high light sensitivity of the camera, you will always find a suitable guide star even with very short exposure times. For connection to guide tubes or off-axis guiders, the camera has a 1.25" plug-in sleeve, 1.25" filter thread (M28.5x0.6) and C-mount 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: http://www.touptek.com/download/showdownload.php?lang=en&id=2 SPECIFICATIONS Camera type: BRESSER / Touptek GPCMOS01200KPF color Sensor: SONY IMX225 CMOS colour Image and video size: Full HD 1280 x 960 pixels (video 30-54,4 FPS) Native sensor size in pixels: 1280 x 960 Exposure times: 102ms to 16min Binning: YES, 1x1 and 2x2 Megapixel: 1.2 MP Sensor size in mm: 4.8 x 3.6 Pixel size: 3.75 µm x 3.75 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 inch (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 and WDM driver included Field of view for different focal lengths in mm (given in arc minutes): 400 mm - 41,2'x 30,9' 500 mm - 33'x 24,7' 600 mm - 27,5'x 20,6' 700 mm - 23,5'x 17,7' 800 mm - 20,6'x 15,4' 900 mm - 18,3'x 13,7' 1000 mm - 16,5'x 12,4' 1250 mm - 13,2'x 9,9' 1500 mm - 11'x 8,2' 1750 mm - 9,4'x 7,1' 2000 mm - 8,2'x 6,2' SCOPE OF DELIEVRY HD camera C-mount adapter USB 2.0 PC connection cable with a length of 180cm Interface cable for ST-4 autoguider port with 150cm length Dust cap for camera tube Software CD