BRESSER Barlow Lens 5x (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 magnification of your telescope can be trippled with the use of this achromatic BRESSER Barlow Lens 3x 31.7 mm (1.25'').

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.htmlDOWNLOAD latest camera software and drivers: https://www.touptek-astro.com/downloadsDownload INDI Driver: https://github.com/indilib/indi-3rdparty/tree/master/indi-toupbaseSPECIFICATIONSCamera type: BRESSER / Touptek GPCMOS02000KPA colorSensor: SONY IMX290 CMOS color, backlitImage and video size: Full HD 1936 x 1096 pixels (video 15 FPS)Native sensor size in pixels: 1936 x 1096Exposure times: 66µs to 16minBinning: YES, 2x2Megapixel: 2.1 MPSensor size in mm: 5.6 x 3.1Pixel size: 2.9 µm x 2.9 µmBit depth: 8/12 switchableST-4 Compatible Autoguider: YESCNC milled housing made of aluminumProtective strap on the camera housingCamera tube diameter: 1.25 "(31.7 mm)Camera connection thread: C-mount + 1.25 "filter threadComputer interface: USB 2.0C-mount extension tube with 1.25 inch filter thread includedNo IR cut filter installedCompatible systems: WINDOWS 10 + 11, Linux, StellaVitaASCOM driver includedField 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 DELIEVERYFull HD cameraC-mount adapterUSB 2.0 PC connection cable with a length of 200cmInterface cable for ST-4 autoguider port with 150cm lengthDust cap for camera tubeSoftware download

Take pictures with your smartphone through the telescope or microskope? With the Smartphone camera adapter this is now child's play! Simply screw the adapter to the eyepiece and use your smartphone as a camera with a super-telephoto / super-macrophoto lens. It lets you take pictures of distant objects or very small objects as if you were very close.The Deluxe version offers an even more comfortable and secure attachment to the eyepiece. By a rotary movement of the clamping ring 3 clamping jaws are evenly applied to the eyepiece housing and the Smartphone adapter sits firmly and centrically on the eyepiece. The fine adjustment of the height of the smartphone support allows a quick and precise adjustment of the viewing height of the smartphone camera above the eyepiece lens. Good image results are thus guaranteed.  FEATURES Take photos through the telescope Smartphone camera with super telephoto lens Fine Height adjustment of phone support Wide adjustment range for eyepiece housing diameter Fits 31.7mm (1.25") eyepieces For eyepiece housing diameters from 22-38mm SCOPE OF DELIVERY Smartphone holder deluxeLocking ring for the smartphone

This Barlow lens doubles the focal length of your telescope.It allows you to make astronomical observations with a higher magnification than a conventional eyepiece. Thanks to the Barlow lens between the eyepiece, you can obtain a greater magnification whilst maintaining a comfortable interpupillary distance.This Vixen 2x Barlow lens is ideal for observing and photographing lunar landscapes and details on the brighter planets. The Barlow lens also features a T2 connection for photography with DSLR cameras. With T2 extension tubes, it can also be used as a camera projection adapter.With a deflecting prism, the Barlow lens enables you to obtain a magnification factor of 3.3x.FEATURES2x Barlow lenses with T2 thread2-lens optical systemDoubles the magnification factorAlso suitable as a camera adapter31.7 mm sleeveWeight: 80 gDELIVERY CONTENT2x Barlow lenses Dust caps

With teleextenders it is possible to extend the effective focal length of a telescope system, resulting in higher magnification for the observation of the moon, the planets or small Deep-Sky objects with the same eyepieces. So you can use the advantages of eyepieces with longer focal length - such as the bigger eye distance and the more relaxed observing comfort - at high magnifications also.These teleextenders incorporate a telecentric optical design that deliveres a excellent image sharpness over the whole field of view and are premium choices for visual observations and astrophotography. The combination of excellent fully multicoating with superior optical design makes the Focal Extenders superior to classic Barlow lenses.Features: Suitable for visual observations and astrophotographytripling the effective total focal length of the telescopeFour lens telecentric design Fully multicoatedFilter thread for color or nebula filters