BRESSER Laser Collimator 31.7mm (1,25")

With the 3-piece lens cleaning set you not only clean camera or binocular lenses, but also spectacles glasses and displays and screens of smartphones, laptops, tablets, etc. thoroughly and safely. When cleaning high quality optical lenses, you have to be very careful. After all, it would be very annoying to successfully remove the dust but leave a scratch behind. With the lens cleaning pen you can safely clean optical and coated glass. With the brush on one side you can remove coarser dirt before polishing the lenses with the other side. Just blow away fluff with the bellows. FEATURES complete set for safe cleaning of camera lenses bellows for removing coarse dirt particles and fluff without scratching the lens lint-free microfibre cloth approx. 14,5x14,5cm lens cleaning pencil for safe cleaning of optical and coated glass SCOPE OF DELIVERY 1x bellows 1x lens cleaning pen 1x microfiber cloth

BRESSER 15mm Plössl Eyepiece 1,25" (31,7mm) Since years a well known and approved Plössl eyepiece. Ideal to improve the performance of your telescopes for a low budget price. All the BRESSER Plössl eyepieces provide sharp and high-contrast images because of the 4-lens design. All lenses have fully-multicoated surfaces which prevents reflections efficiently. Every eyepiece is equipped with a foldable rubber eyecup to avoid straylight from the sides and the inner eyepiece shaft is carefully blackened as well. Housing and eyepiece shaft are completely made from metal - no plastic is used. Filter thread for use with colour- and nebular filters is also available. All these Plössl eyepieces offer a much better image quality than all the very simple made Kellner and Huygens eyepieces. FEATURES Focal length: 15 mm Field of view: 50° Lens-Design: 4 lenses in 2 groups , fully-multicoated Housing material: completely made from metal Rubber eyecup: YES, foldable Filter thread: YES Storage: Twist-pack SCOPE OF DELIVERY BRESSER Plössl eyepiece with rubber eyecup Twist-pack

Filter Set 2 is recommended for Moon & Planets from 100mm (4") Aperture Set 2 includes the following filters: Explore Scientific Filter 1.25" Green No.56 - 0310262 The green filter is to increase the contrasts enormously between the red and the blue regions of the cloud structures on the gas planets Jupiter and Saturn. Seeing our Earth Moon through the green filter, the contrasts of each ray crater become clearly more visible. Explore Scientific Filter 1.25" Orange No.21 - 0310273 This one really supports the detection of the dark areas on the planet Mars. The details of the clouds of Saturn and Jupiter are also so much more visible through the Filter. Explore Scientific Filter 1.25" Yellow No.12 - 0310267 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. Explore Scientific Filter 1.25" Blue No.80A - 0310264 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. 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 protection-case

The Vixen NPL 4.0mm 4 Element Plossl Eyepiece 1.25" is a high power Lunar and Planetary eyepiece, most suitable for short to medium focal ratio telescopes. Its four element design gives the eyepiece a respectable field of view and excellent resolving power. FEATURES Size: 31.7mm Apparent FOV: 50° Eye Relief: 2.3mm Weight: 70g/2.47 oz. SCOPE OF DELIVERY Vixen NPL 4.0mm 4 Element Plossl Eyepiece 1.25"

With the usage of barlow lenses, you can extend the equivalent focal length of telescopes and hence increase the magnification of your observed targets. Subsequently, you can use lower power eyepieces in Barlows to act as much more powerful eyepieces, but retain the larger ocular size and more comfortable viewing that comes with lower power eyepiece designs.Due to their two lens design, these Barlow lenses provide a brilliant image quality for the whole visual field and are suitable for observations and photography.  The black coloured Barlow element cell in this BRESSER Barlow Lens 2x 31.8mm/1.25," can be unscrewed and has the same thread as 1.25" filters, allowing it to be mounted in 1.25" eyepieces, t-adapters and other accessories, giving you flexibility of use and the ability to vary magnification in different accessories.  For instance, the black Barlow cell screwed into the average length nosepiece of a standard push fit t-adapter will give around 1.6x magnification on an attached DSLR.  This can be very useful when trying to get to photographic focus with some Newtonians and Solar Telescopes, which lack the necessary amount of in focus travel to get a camera to a prime focus position.FEATURESsuitable for observations and photographydoubling of the focal lengthtwo lens designfully multi-coatedWHAT'S INCLUDEDBarlow lens (1pc)

The green filter is to increase the contrasts enormously between the red and the blue regions of the cloud structures on the gas planets Jupiter and Saturn. Seeing our Earth Moon through the green filter, the contrasts of each ray crater become clearly more visible. This filter should be used at an aperture of 8“.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.FEATURESMade from high-quality optical glassFilter glass is absolutely parallel All optical surfaces have anti reflex coatingsFilter housing from black anodized aluminumFilter threads on both ends (female/male)Multiple filters usage is possibleSCOPE OF DELIVERYColor filterProtection-case

The BRESSER Hunter 10x25 binoculars is a new design offering excellent value for money. Due to its compact and handy shape this series is an ideal companion for many situations. The fully coated optics and the solid mechanics allow for a good and true colour imaging. The ergonomic shape of the armouring and the non-slip rubber provide a safe grip. BK-7 optical glass is used for a good image reproduction. These binoculars are perfect for hiking and other outdoor activities. Thanks to its small dimensions and low weight it can be stowed easily in your luggage. FEATURESCompact and lightweight pocket binoculars Optical design: roof prism binoculars Magnification: 10x Lens diameter: 25 mm Fully coated optics for good image quality Ergonomic shape and non-slip rubber coating for a secure grip With optical BK-7 glass material SCOPE OF DELIVERYBinocularsCarry caseCarrying strapLens clothmanual

The BRESSER Hunter 20x50 binoculars new design provides impressive performance. Due to the minimised lightweight design, this inexpensive model is the ideal companion in many situations. The fully coated optics and solid mechanics enable a true colour image reproduction. The high magnification is ideal for observing distant objects. All models include not only a dioptric adjustment but also foldable rubber eyecups for eyeglass wearers. The handy and non-slip surface of the BRESSER Hunter 20x50 binoculars always ensures a firm grip. A tripod mount is part of the standard equipment of these binoculars and is a popular feature particularly with high magnifications . FEATURES Prism lens made ​​of BK-7 glass Blue fully coated optical surfaces Center wheel focusing Dioptric adjustment Foldable eyecups Robust, rubber armored binocular body Tripod adapter thread SCOPE OF DELIVERY Binoculars Case Shoulder strap Caps Lens cleaning cloth Manual

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.In the past few years the Bresser Newton telescopes have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Bresser NT-203s/800 with Hexafoc and a fast parabolic main mirror. The Bresser NT-203s/800 f3.9 will deliver you deeper images due to its - compared to 8" f/5 systems - oversized primary mirror and therefore faster optical system with the same exposure time. The big 85 mm secondary prevents vignetting for optimal illumination The excellent 2.5" Hexafoc focuser also does not cause vignetting due to its large diameter and makes focussing a joy - the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with haircross and laser-engraved scale  leave nothing to desire even for demanding astrophotographers. The NT-203s/800 Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction (part No. 0625720) without problems. Ready to use with the  HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism.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.CHARCTERISTICS Optical design: reflector telescopeMirror diameter: 203 mm / focal length: 800 mm / F/3.9Maximum recommended magnification: 406xTelescope for night and solar observing Very high quality Hexafoc focuser with 2.5" free inner diameter Diffraction limited optics with parabolic main mirror 8x50 straight through viewfinder with reticle Optimized finder socket for comfortable use Cradle rings with handle and integrated piggyback camera holder (1/4 thread) Smartphone adapter for celestial navigation included Dovetail plate with stainless steel rail Can be connected to SLR cameras (optional T2 ring required) 50.8mm (2) to 31.7mm (1.25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed) Aperture 203 mm Focal length 800 mm Focal ratio f/3.9 Backfocus fully inward focused: 100 mm 85 mm secondary mirror for optimal illumination Large knobs for primary and secondary mirror adjustment Tube without accessories: 8.7 kg - Tube with all accessories mounted: 11.5 kgSCOPE OF DELIVERYOptical tube 26 mm Super Plössl eyepiece 31,7 mm (1.25") 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 Software Stellarium (via download)

Enter the world of astrophotography now - with the new EXPLORE SCIENTIFIC 4K DEEP SKY ASTRO Camera including ST4 autoguider function. This is truly new: Equipped with the new high-sensitive SONY IMX585 Exmor CMOS colour sensor, this astronomy camera delivers amazing image results with extremely short exposure times even with basic 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 an SLR or CCD astro camera. An all-round camera that delivers super-sharp and high-resolution planetary images. The high 4K resolution of 3840x2160 pixels guarantees the best possible image result. Sensor The secret to the high light sensitivity is SONY's new back illuminated Exmor CMOS sensor. It increases the quantum efficiency to up to 77 % at 533 nm, which leads to an extremely high light sensitivity and thus particularly bright and high-contrast photos. In addition, the particularly low noise level of this new CMOS sensor generation by SONY ensures exceptionally high brilliance and no active cooling is required. Nevertheless, this astro camera has an elaborate internal structure made of aluminium for ideal heat radiation and a fan that can be switched on via software. When used with suitable telescopes, the high native pixel resolution of 3840x2160 enables very nice overview images of the moon, but also detailed planetary images. Solar Imaging This camera is also recommended for solar astro-photography. Especially the Lunt LS40 THa solar telescopes (item No. 0551145/0551146/0551147), with their short focal length, allow in combination with this planetary camera with its large sensor great overview images of the sun. Important Note: When observing and taking photos of the sun, always use a suitable protective solar filter or a special solar telescope. Otherwise there is a risk of immediate blindness and damage to the camera. Software The included Explore Capture professional software offers not only the necessary basic functions for image and video capture, 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 recording and much more can be configured individually. 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 a lot of prior knowledge. And when you are ready, simply switch off the automatic settings and gradually venture into the individual professional settings. Automatic tracking control Connect the camera directly to the ST4 port of your telescope mount and you have a fully automatic tracking control. Thus, long exposures of several minutes are possible without the stars producing unwanted star traces due to the always existing periodic error of the telescope mount gears. A corresponding ST-4 connection cable is even included in the camera's scope of delivery. Because of the high light sensitivity of the camera, you will always find a suitable guide star even with very short exposure times. Simple automatic tracking at its best. Connection For the connection to telescopes, guiding scopes or off-axis guiders the camera has a 1.25'' socket with 1.25'' filter thread (M28.5x0.6) and a large T2 connection thread (M42x0.75) directly on the housing. IMPORTANT NOTES: This is not a stand-alone guider camera. You always need a Windows 10 or 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 see download folder "Manuals" or here: http://www.touptek.com/download/showdownload.php?lang=en&id=2 Sample photos made by Lóránd Fényes in Hungary: https://fenyeslorand.hu/naprendszerunk/ https://fenyeslorand.hu/explore_scientific_4k_review/ https://fenyeslorand.hu/asztrofotok/ FEATURESHighly light-sensitive USB 3.0 4K colour camera Suitable for taking pictures of deep sky objects, the Moon and planets Integrated ST4 guiding function Allows very short exposure times for super-sharp planetary images Camera type: EXPLORE SCIENTIFIC G3CMOS08300KPA colour Image sensor: NEW Sony IMX585 Exmor CMOS colour sensor, back illuminated Data output: still images and video Image and video format output: 3840 x 2160 (4K) & 1920 x 1080 (Full HD) pixels Framerate: up to 43 and 66 FPS (for video) Physical sensor size in pixels: 3840 x 2160 (4K) Possible exposure times: 0.1 ms to 60 min Binning: Yes, 1x1 and 2x2 Megapixel: 8.3 MP Sensor size: 11.14 x 6.26 mm Image diagonal: 12.86 mm Pixel size: 2.9 µm x 2.9 µm Bit depth: 8/12 bits, switchable ST-4 compatible autoguider: Yes CNC machined aluminium housing Camera connection diameter: 1.25'' ( 31.7 mm) Camera connection thread: T2 thread (M42x0.75 mm) and 1.25'' filter thread Camera connection to PC: USB 3.0 Required backfocus: 17.5 mm Shutter type: Global shutter Heat radiation via built-in fan (switchable via software) Operating temperature: -10 to +50 °C (30-80 % RLH) Cable length USB 3.0: 150 cm Camera diameter: 68 mm; length: 85 mm Camera weight: 0.3 kg Software: Explore Capture included Camera driver and ASCOM driver and SDK included PC requirements: CPU Intel Core2 2.8Ghz or higher / 2 GB Ram / USB 3.0 Operating system: WINDOWS 10 + 11 Field of view for different focal lengths in minutes of arc: 400 mm - 95.6' x 53.8' 500 mm - 76.5' x 43.0' 600 mm - 63.7' x 35.8' 700 mm - 54.6' x 30.7' 800 mm - 47.8' x 26.9' 900 mm - 42.5' x 23.9' 1,000 mm - 38.2' x 21.5' 1,250 mm - 30.6' x 17.2' 1,500 mm - 25.5' x 14.3' 1,750 mm - 21.8' x 12.3' 2,000 mm - 19.1' x 10.8' SCOPE OF DELIVERY4K Planetary Astro Camera & Guider 8.3 MP 1.25 inch (31.7 mm) plug-in adapter with filter thread USB 3.0 connection cable 150 cm Control cable for ST-4 autoguider function 150 cm Dust cap for camera opening Software (via download) Instruction manual (via download)

Vixen’s latest design of polar finder, allows a simple, hassle-free method of polar alignment. The Vixen Polarscope PF-L II for AP & SX mounts has a reticule showing the Pole star (Polaris) and two other stars (Delta UMi and 51 Cep) in their precise positions. By turning the Polarscope you can easily match the reticle with the asterism of these stars in the sky and mechanically adjust your mount’s azimuth and altitude axes to align to the true North Pole. You can then adjust the Polar star to a more precise alignment using the reticule’s year marking (which runs from 2015 to 2040, but in practise can be used much longer after this) . Using this alignment process, with visual reference to the actual stars in the sky, a complicated alignment, using date and time to calculate Polaris offset from the pole is unnecessary. For alignment in the Southern Hemisphere you simply use the Trapezium asterism (Sigma, Chi, Tau and Upsilon Octantis) of the constellation Octans and position the reticule with the trapezium stars aligned to their marked positions. The Polarscope has built-in LED illumination, which is dimmable in many stages, and ensures an automatic shut-off after 2 minutes, saving your battery life. The PFL-II also has an improved edge sharpness, when compared with its predecessor. FEATURES Lighting: LED illumination, with automatic shut-off Power supply: 3v button cell Accuracy: ≤ 3 arc minutes Dimensions: 47 x 55 x 127 mm Weight: 155g Compatibility: Vixen AP, SX, AXJ, AXD Mounts SCOPE OF DELIVERY PF-L II Allen key Battery CR2032 3v

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