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Post by pc1971 on Dec 3, 2013 16:47:32 GMT
Hi, I was just wondering if someone could point me in right direction as to how I would go about connecting my canon 40d to my Skywatcher 8" Dobsonian... Just wanna mess about & take few pics of planets etc... Dont wanna spend a fortune either so if anyone would be able to advise me of what I need & where best place to purchase would be It would be very much appreciated... Another thing is eyepieces,, I've got a super 25 wide angle long eye relief, super 10mm which I got with the scope when I purchased if 2nd hand, I bought a ultra wide 6mm and again just wondering if there was any others I should have... Thanks
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Post by stevie on Dec 3, 2013 17:59:45 GMT
Somebody else will need to advise you about the camera, but, as for eyepieces, it would be a good idea to come along to an observing session and try a few.
Based on what you have so far, I would advise something like a 15-18mm size. Go for a wide field eyepiece. We are all big fans of the Baader Hyperion 17mm, nearly all the regular observers in the society have one.
All the Baader Hyperions are excellent in dobs 9except maybe for the 24mm), but there are other choices, like the Celestron Ultima LX series, Explore Scientific 82 degree series (now very difficult to get in the UK), or the new Skywatcher SWA series, which are getting good reviews and are very well priced. It is actually quite difficult to buy an outright bad eyepiece nowadays, all the manufacturers have had to up their game to stay competitive, so it really comes down to what you can afford and availability. I buy most of my eyepieces second-hand, and there is no big difficulty with this as almost all amateur astronomers look after their equipment very carefully. Keep an eye on Astronomy Buy and Sell, there are always plenty of eyepieces for sale, but stay away from ebay until you know what you are doing.
The only problem is, once you use a really good eyepiece, you will probably never use your current eyepieces again, certainly not the 25mm anyway.
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Post by pc1971 on Dec 3, 2013 18:13:07 GMT
I've been meaning to come to an observing nite for a while but just couldn't get the time with work etc...I've just been laid off from my work so hopefully after Xmas I'll b able to make it.. I'm a total novice & ain't really seen much thro my scope since I got it.. It sits gathering dust to be honest.. The only 1 I've really used is the 1 I bought myself.
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Post by stevie on Dec 3, 2013 18:14:13 GMT
Jimmy has suggested tomorrow night, so see if you can get along to that. It might be some time before we get out again.
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Post by garyr on Dec 4, 2013 11:51:56 GMT
To attach your Canon 40D to any telescope what you really need is a T-ring and a nose piece. However this will give you a very wide field of view more suited for guided deep sky long exposure (planets will appear very small) as it is basically not unlike putting your eye in the eyepiece holder without an eyepiece. If you just want to take one shot pictures of planets using your DSLR you would probably want an afocal adapter. This allows you to slide in an eyepiece between your camera and the telescope and you are effectively taking a picture of what is displayed in the eyepiece. Either way your going to need one of these ; www.firstlightoptics.com/adaptors/t-rings.html
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