can be caused by poor collimation but also by poor quality optics. I usually feel for them coming into contact with the mirror cell and then add a small amount of pressure. This guide will take you through the various steps towards perfect collimation. With a 200mm aperture, this telescope opens up new details in deep sky observing for the observer as compared to smaller telescopes. Find a Dealer Send to Friend Print Page. The Sky-Watcher 200P has a focal length of 1000mm and a primary mirror diameter of 200mm so 1000 divided by 200 = 5 ( focal ratio ). For this image I wanted to create the feeling of being within the enormity of the stars. You should note that fast scopes of f5 and above are less tolerant of collimation errors and they also show slightly offset collimation patterns. Be careful not to loosen the screw too much which will cause the secondary to disengage from its holder and fall off. You can calculate the focal ratio of your own telescope by the simply dividing the focal length by the diameter of the primary mirror. Star testing is simple enough to carry out and there is a section below which will explain this and show the most common problems. Insert this into the focuser and take a look through the collimator. They need to be firm and tight – they DON’T need to be tightened until the threads pop. To accurately collimate with this guide you will need a Cheshire collimator and a collimation cap. He received the international Photo Nightscape award 2015, Western Australian Astrofest 2014 and achieved an APOD in February 2016. The Ultimate Light Gatherer. This may be caused by roughness of the mirror caused by poor polishing or damage from poor cleaning. Take your time, be patient and continuously go back over your work and make sure all is well at each stage before continuing. Sky-Watcher Classic 200P DOBSONIAN Telescopes. Hope your enjoying our new site. Image 2 - "The Light Within"Nambung National Park in Western Australia. Mit 78% mehr Lichtsammelfähigkeit gegenüber einem 150mm Teleskop können sogar die zarten Spiralarme vieler Galaxien und mehr Strukturen in anderen Nebeln beobachtet werden. ... Tonights LIVE stream of the Moon, Jupiter and Saturn conjunction. At the rear of the telescope you will find three pairs of screws. Review of the Hotech Self Centering Laser Collimator, Review of the Celestron 4SE GoTo Maksutov, Review of the Sky-Watcher 130PM & Celestron Eye-Opener Kit, Review of the Skywatcher Skymax 180 Pro Maksutov, Review of the TAL 100RS 4″ Achromatic Refractor, For Astro Babys Guide to Cleaning and Center Spotting Telescope Mirrors Click Here. Edited March 17, 2011 by lukebl. Exif Canon EOS R Sigma 35mm Sky-Watcher Star adventurer panorama head 35mm F2.0 ISO 1600 30s 180 image panorama Bortle 4 location looking into the heavier light pollution area ... Share on FacebookShare on TwitterShare on Linked InShare by Email, You might see a trend here, we'll be featuring our ambassador Astrophotobear and his incredible images over the next week! First remove the coloured card and the white ‘baffle’ card in the telescope tube. Be careful not to apply too much force and go slowly. If the secondary has shifted then you will need to realign using the procedures in stage 2 and then run through the procedures in stage 3 again. Send us your images . You can make a collimation cap from a 35mm film container or buy them ready made. Another tip here is that it’s often quite hard to see whether the secondary is presenting as a circle against the black background of the tube. Image 1 - "Exploring the Great Expanse" Salt lakes can be a fantastic location for landscape astrophotography. Checking the secondary mirror tiltwith a small mirror, Secondary Mirror close to square on its holder. It may be that that the pattern is offset and will show the cross hairs as being adrift from the central circle created by the Primary Mirrors centre spot and that the centre spots are adrift. Hundreds of limestone pillars up to 3.5m tall, scatter the desert landscape. Some scopes allow adjustment of the spider vanes. Das Ergebnis erlaubt erfolgreiche Beobachtungen sowohl von Planeten als auch im Deep-Sky-Bereich. Ideally the Airey disk will be perfectly formed for both sides of the perfect focus (Extrafocus and Intrafocus) but in reality most telescopes wont do this perfectly owing to slack within the focus mechanism or atmospheric turbulence but you should see an Airey disk on at least one side of the perfect focus position. Bilya Rock in Morawa in Western Australia. This is shown below. The Dobsonian telescopes are named after John Dobson, an amateur astronomer who designed a very simple but effective telescope, where the key factor is a large aperture for little money. The Skywatcher 200P is a really great scope, though! Sky-Watcher Classic 200P DOBSONIAN Telescopes. Newsletter. The Dobsonian telescopes are named after John Dobson, an amateur astronomer who designed a very simple but effective telescope, where the key factor is a large aperture for little money. This will create a view of the secondary as just a white circle. The salt lake is only a few inches deep so can readily stand in it. In the fast scope patterns above and below the circles are in fact concentric and true (ie. Product Code: 10717 Brand: Sky-Watcher. I called the image Waypoint due John Forrest being reputed as one of the great explorers in Western Australia's history. Spiegelteleskop mit 200mm bzw. The second method for aligning the mirror holder is a little more complex but more accurate and easier once the initial work is done. Rule 5 – Whenever you are working on a telescope ALWAYS work with the telescope tube in a horizontal position. All you are trying to do at this stage is get the secondary mirror centred on the primary mirror. Why not share it with the wider community now. If the problem persists you will need to remove the primary mirror cell and make sure the clips holding the mirror to the cell have. This guide may look scary – if you take it one step at a time its not that hard. His idea was to mount a Newton telescope on an easy-to-use alt-azimuth mount that does not need time-consuming … You can now proceed to the second stage of the secondary alignment which is aligning the secondary to the primary mirror. https://www.teleskopguide.net/skywatcher-n-2001000-explorer-bd-neq-5-2 Bear in mind the collimation pattern may be slightly different depending on the f ratio of your scope. Tips before you start ….. His idea was to mount a Newton telescope on an easy-to-use alt-azimuth mount that does not need time-consuming alignments. These are shown below as a guide. Now look into the collimation cap and using the tilt screws get all of the primary mirrors retaining clips into view and at the edge of the secondary mirror. Note: Some telescope manufacturers (Sky-Watcher for instance) cover the collimation adjusters with a steel plate. … The OTC Satellite Earth Station Carnarvon was established in Australia to meet the needs for more reliable higher quality communications for the Apollo space program. Even a turbulent atmosphere pattern will allow you to see whether the circles are concentric or whether they are off centred and non-concentric. Michael also runs photography workshops. This is almost always very time consuming but once done should not need readjustment unless the scope is severely shaken or dropped or the vanes and the secondary are removed for any reason. To me the Sky-Watcher range of instruments are very good indeed, and … Skywatcher Explorer 200P - Newton 200/1000 mm auf parallaktischer Montierung NEQ5 Hier wurde ein leistungsstarkes Newton-Teleskop mit einer bewährten Montierung kombiniert. It will lead to a rush job and frustration – TAKE YOUR TIME and you will be rewarded with good collimation and better viewing through your telescope. Those who have clear skies be sure to check it out. ... Be the first to review “Classic 200P DOBSONIAN”. > Skywatcher > Reflectors Zoom: Sky-Watcher Explorer 200P EQ5 £489.00 (2 Reviews) 2 year warranty. Please bear with us as we upgrade all the articles. Those who have clear skies be sure to check it out. If the secondary has shifted then you will need to realign using the procedures in stage 2 and then run through the procedures in stage 3 again. The tilt adjusters can be set quite tight but be careful not to apply too much force and bend the spider vanes. Reviews. In order to cover off all of the issues the guide is somewhat larger than some others on the web – many guides omit various details which can lead to confusion and frustration in the beginner. Ideally the Airey disk will be perfectly formed for both sides of the perfect focus (Extrafocus and Intrafocus) but in reality most telescopes wont do this perfectly owing to slack within the focus mechanism or atmospheric turbulence but you should see an Airey disk on at least one side of the perfect focus position.