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sky-watcher 200 dob

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Hi all, I have a sky-watcher 200 dob which i brought a few days ago (still sits in loung unused!) and was wondering (A ) does the small removerble cap on the large tube end cover serve any purpose or is it just for show? and (:) when I do finally get to use it do I have to take it outside for a little while so the mirror and eye piece dont mist up? thankyou

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It's a good idea to take the scope outside to let it cool down for 30 mins or so before you start using it. I believe the small removable cap is for viewing the moon, so you don't get completely blinded by the light! :)

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Thankyou for the answers im slowly getting to know all about the scope shame I cant blinkin use it the weather here has bee dire!

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the small cap can be removed to reduce glare and potentially increase visible contrast on the moon and planets BUT you'll also lose resolution as aperture = resolution.

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Sorry to butt in, but it will save me making another thread.

I'm considering buying this scope and was wondering if there are any accessories i should be buying straight away? I think I will get a Cheshire Collimating eyepiece, but is there anything else you would recommend?

Is the finderscope reversed? would it be beneficial to swap it for something like a red dot sight?

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Most people recommend a right-angled finder, saves you twisting and crouching etc.

Other than that and the cheshire, it's really down to personal taste. So just use it for a while, and if you start thinking "hey, you know what i could do with?" then you can start buying new shiny stuff :)

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A telrad or other red dot finder would be my first buy. if you can afford one, a right angle correct image finder is also a godsend in addition to a RDF.

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Many people find a Telrad type finder useful. But other than a collimator, I would also say use it for a while with the existing eyepieces etc before splashing out on a lot of new kit.

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Thanks that's what I was thinking myself, just get the basics for now and upgrade if and when I need something.

I can see myself getting really frustrated with a reversed finderscope, so might upgrade that from the outset. Would something like the following be suitable?

First Light Optics - Baader 30mm Sky Surfer III

First Light Optics - Rigel QuikFinder Compact Reflex Sight

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Isn't it easy to spend another person's money?

Just try using your telescope as it comes. After a few sessions you'll figure out what things you want to get for it, and in what order.

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There used to be a Dob Group on here, but not sure if it is still active, there was some good tips on there for making setting circles and using a Wixey angle gauge. for finding DSO along with the Stellerium software which is free for getting the ALT/AZ readings then you just moved the dob to what you want to view.

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I've got a quickfinder and a 9x50 finder on my dob. I use the quickfinder to get in the right area of the object I want look at and then fine tune with the 9x50. Works every time ( well, nearly every time ! ) Dont pratt about with setting circles and angle finders on a dob, its just as quick using finders if you know your way around the sky.

Good luck.

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