Skywatcher Evostar 80ED DS PRO The new EVOSTAR DS-PRO Series ED Apochromatic refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations. “Great all-round package...We were pleased to see the stat Altair pin-sharp across 85% of the field of view, with only slight trailing off near the edges...On deep-sky objects, the dual-speed Crayford focuser allowed us to gain fine, crisp views; particularly noteworthy was the Dumbell Nebula M27. The wide field of view also produced fine vistas of the Andromeda Galaxy...The focuser’s 1.25” adaptor had a nice touch: a DSLR camera attachment for imaging. Overall this telescope packs a lot of punch...a complete setup with lovely crisp optics” BBC Sky At Night Magazine Apochromatic Refractors, due to their unobstructed, text-book like diffraction patterns, produce the sharpest, highest quality optical imaging available, bar-none, aperture for aperture, of any telescope optical system. These high-end telescopes all feature a doublet objective lens. One element is made from premium Japanese Ohara FPL-53 Extra-Low Dispersion (ED) glass, which virtually eliminates chromatic aberration to deliver true colour reproduction. Top quality Schott glass is utilized for the Crown element. Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied, to ensure optimum light through-put of approaching 99.5%!! The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class. Specification: Magnification with Eyepieces Supplied: x21 Highest Practical Power (Potential): x240 Objective Lens Diameter: 80mm Telescope Focal Length: 600mm (f/7.5) Eyepiece Supplied (2"): 28mm LET 2”/50.8mm Di-Electric Star Diagonal 9x50 Finderscope Dual-Speed 11:1 2” Crayford Focuser (Backlash-Free) Multi-Coated Objective Lens Supplied with Tube Rings & Mounting Plate Aluminium Carrying Case 
Skywatcher AZ-EQ6GT The Sky-Watcher AZ-EQ6GT is an exciting evolutionary development of the hugely successful NEQ6 PRO. The AZ-EQ6GT is a dual purpose, fully functional computerised heavy-duty Go-To/Tracking astronomical mount in both Alt-Azimuth (AZ) and Equatorial (EQ) modes. Supplied with a Synscan handset with dual AZ/EQ firmware, it can automatically find and track over 42,900 celestial objects from its database. In EQ mode, the AZ-EQ6GT is designed for either visual use or precise astro-imaging. In AZ mode, it is primarily intended for visual use, and in this mode, two telescopes can be mounted simultaneously in parallel. A great feature of the AZ-EQ6GT is the patented dual-encoder technology. This allows the telescope to be moved manually in either axis without the mount losing its positional information. This gives the user enormous freedom, convenience and flexibility during observational sessions. The Sky-Watcher AZ-EQ6GT.....a new legend is born!! SPECIFICATION Payload Capacity: 25kg (EQ and AZ modes) Tracking Accuracy: 0.1436 arc second Go-To Capability: EQ and AZ modes Synscan Handset Database: over 42,900 celestial objects Tracking Speed: sidereal, solar & lunar rates Tracking Mode: EQ or AZ, dual or single axis PEC control in EQ mode Autoguider Port : Yes DSLR Electronic Shutter Release Port : Yes Motor Type: DC12V stepper motors Patented Dual-Encoder design allows manual movement without losing positional information Polar alignment: via software control or supplied polar scope Alignment methods: 1, 2 or 3 star alignment (EQ) / brightest star or 2 star alignment (AZ) Telescope Connection: 2 x dual-fit saddle plates supplied accepting 45mm & 75mm dovetail bars RA/DEC Worm Gears: D=92.5mm, 180 teeth, brass RA/DEC Axes: D=40mm, steel Tripod: 2” Stainless Steel Counterweights supplied: 2 x 5kg Counterweight Bar: 25mm Diameter Mount Body Weight: 15.4kg, Tripod Weight: 7.5kg Power requirement: 12V DC 3A (Sky-Watcher 17Ah Power Tank recommended) Note: Two 5kg Counterweights supplied, not four as shown in main picture
ZWO 5 Position Filter Wheel ZWO came up with this high quality 5-position filter wheel, but in addition to visual use, the main features of this filter wheel suggest that it has been designed mainly for astro photography. Up to five filters can be installed in the numbered compartments that feature standard 1.25" filter thread, and each can be selected for your eyepiece or camera by simply rotating the inner wheel to any of the five click-stop positions. Unlike in the case of many competing products, it is very easy to turn the wheel that helps to keep your object intact. It is not a problem with motorised filter wheels, but if it's difficult to turn a manual filter wheel, it is possible to knock the telescope off of position... so it's better to have a filter wheel that turns smoothly. The filter wheel can be attached to your focuser either by the supplied 1.25” nosepiece adaptor or via a T-thread. There is actually a female T-thread on both sides of the filter wheel. One compartment can be left empty for unfiltered viewing. The robustly constructed filter wheel is supplied with a 1.25” nosepiece, 1.25” eyepiece holder with brass compression ring, T-2 camera adapter and locking ring. Please note: your focuser will require 19mm of inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel. This filter wheel will be a good addition to any ZWO CMOS USB Camera that we sell (please make sure that your telescope otherwise have enough back focus, of course, e.g. Newtonian telescopes would usually have a back focus issue, unless modified or specially designed for astro photograpy...)
ZWO ASI1600MM-Cool USB 3.0 Cooled Monochrome CMOS CameraThis is an exciting moment as with this NEW ZWO ASI1600MM-C camera, ZWO made its debut into the DSO imager camera market. The ZWO ASI1600MM COOLED camera is an excellent choice for imaging deep sky objects, however it can do much more than that. With a max framerate of 23 FPS this camera can also be used as an extremely high resolution planetary imager. If you cannot decide if your thing is deep sky or planetary imaging, go for this camera. This version has built-in active cooling that helps to reduce electronic noise to the minimum. In order to image in colour with this monochrome camera, a filterwheel and L-RGB Filters will be required. You can also image in Narrowband with relevant narrowband filters. Please note that the sensor diagonal size is very close to the internal clear aperture of a 1.25" filter, therefore with fast telescopes (small f-ratio) there might be vignetting. The limiting focal ratio with the ZWO manual filter wheel depends on the thickness of the filter glass that you use, and its clear aperture. The latter is usually 24mm for 1.25" filters. Filter glass thickness: 2mm Limiting focal ratio: f/8.5 - lower will give vignetting 3mm Limiting focal ratio: f/9 - lower will give vignetting 4mm Limiting focal ratio: f/9.5 - lower will give vignetting Above are approximate figures as the filter's actual position within its housing will also influence the calculation. As you can see from the above, a combination of this camera with a ZWO 1.25" or similar 1.25"filter wheel would work well with Schmidt-Cassegrain or slower telescopes, but for fast refractors and reflectors, F6 and lower, a filter wheel that can accept 31mm filters would be better suited as that would allow much lower focal ratio limits: f/2.8, f/3 and f/3.2 respectively. FEATURES: Resolution: 16MPixel 4656X3520 at up to 23fps Pixel Size: 3.8µm Read Noise: 1.2e @ 30dB gain Cooling: 40 - 45 degrees below ambient (obviously, only on cooled versions) Standard Autoguider Port Built-in RAW mode and Grey mode output support. Only about 30% storage space required compared to the Color data format! Peak Quantum Efficiency: TBC Full aluminum housing with standard 2" interface M42X0.75 internal thread Full Well: 20ke ADC: 12 bit Exposure range: 32µs - 2000s! TECHNICAL DETAILS: Sensor: 4/3″ CMOS Diagonal: 21.9mm Resolution: 16Mega Pixels 4656×3520 Pixel Size: 3.8µm Max FPS at full resolution :23FPS Exposure Range: 32µs-2000s Read Noise: 1.2e @30db gain QE peak: TBD Full well: 20ke ADC:12bit Interface: USB3.0/USB2.0 Adaptor: 2″ / 1.25″ / M42X0.75 Protect window:IR-CUT window Dimensions: φ62mm X 41mm Weight: 410g Back Focus Distance: 6.5mm Working Temperature: -5°C—45°C Storage Temperature: -20°C—60°C Working Relative Humidity: 20%—80% Storage Relative Humidity: 20%—95% DOWNLOADS: On the included CD you'll find drivers and two software applications: Firecapture and SharpCap. These are both freeware and the latest versions can be downloaded from the developers' websites. If you have any problem with installing any of the software from the CD, please download them from here: Firecapture Beta Downloads SharpCap Downloads We'd recommend to always use the beta version of Firecapture, but reverse to the latest stable version if you experience problems. For full specification, driver installation tutorial (youtube video), basic usage information and recommended third party software please visit the manufacturer's website: ZWOptical There is also a Yahoo Group where you can find lots of information about how other members use the ZWO cameras: Yahoo Group ZWO ASI Cameras TROUBLESHOOTING: Here you can download a pdf file that will guide you through ZWO ASI camera troubleshooting. Click here!
ZWO ASI120MM Mono USB 3.0 Camera The NEW USB3.0 version ZWO ASI120MM-S is an excellent choice for an affordable planetary and deep sky camera for those who has just started in astro photography, but cannot spend a fortune on a specialist astro photography camera or want to replace a modified webcam or a cheaper planetary imager. This NEW version comes with USB3.0 connection that gives you the opportunity to use it with newer laptops at even higher frame rates, thus achieve even better results in planetary imaging. It comes with an AUTOGUIDER PORT just as its previous USB2.0 version, so you may use it for both imaging or guiding! Basically, according to the old saying, you get what you pay for...never-the-less we believe that these ZWO cameras offer the best value for the bucks at the moment on the market... According to customer feedback, these cameras worth every penny invested. Mostly used for planetary imaging, it can also be used for deep sky imaging up to a certain level. This monochrome version is recommended for L-RGB or narrow band deep sky photography if you want to get out the best data from your camera and achieve sharp, contrasty deep sky images or planetary images, but if you don't want the hassle or cannot spend much time and happy to go for a compromise, simply choose the Colour version. With this monochrome version, you'll also need a filter wheel and a set of L-RGB filters or H-alpha and OIII filters, and maybe even H-beta and SII filters as well for narrow band astro photography...) Features of the ZWO ASI120MM-S USB3.0 Recommended for the Sun, Moon and some deep sky objects (To image the Sun you'll have to use a proper front solar filter or Herschel wedge depending on your telescope. Please contact us if not sure!) Resolution: 1280X960 at up to 60fps - 70fps Long time exposure up to 1000s! NEW - Autoguider Port Built-in RAW mode and Grey mode output support. Only about 30% storage space required compared to the Color data format! Peak Quantum Efficiency: 75% (better than ICX618) No fixed pattern noise (FPN)! Full aluminum housing with standard 2" interface M42X0.75 internal thread. DOWNLOADS On the included CD you'll find drivers and two software applications: Firecapture and SharpCap. These are both freeware and the latest versions can be downloaded from the developers' websites. If you have any problem with installing any of the software from the CD, please download them from here: Firecapture Beta Downloads SharpCap Downloads We'd recommend to use the latest version of Firecapture with the USB3.0 ZWO ASI cameras... 150 degree wide lens included! You don't even need a telescope to start imaging the stars! Specification of ZWO ASI120MM-S USB3.0 Sensor: 1/3" CMOS MT9M034 (mono) Resolution: 1.2Mega Pixels 1280x960 Pixel Size: 3.75µm Exposure Rage: 64µs-1000s ROI: Supported Interface: USB3.0 / USB2.0 Bit rate: 12bit output（12bit ADC） Adaptor: 2" / 1.25" / M42X0.75 Dimension: φ62mm X 28mm Weight: 100g Working Temperature: -5°C—45°C Storage Temperature: -20°C—60°C Working Relative Humidity: 20%—80% Storage Relative Humidity: 20%—95% 
