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What a great night with the cannon eos 300d and 12" dobson


todd8137

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hi all had a great night out last night got a few pics a say a few about 300 all in all,well it started with a few day shots of the moon just to get the focus right ect and to test some day time settings worked well.a took a few moreof the moon as it got dark then decided to have a go at pleaides got a few not brill but its a start,a now no and recorded down the settings for next time m42 was the next one a got about 100 shots of this more than 4 secs with no goto is a pain.the baterries were dead from the night befor ,a must get a power tank of some sorts soon.well i put them on photo bucket and a hope ypou do not mind take in a look and maybe give in me some pointers on how to improve the obivous bein get in the goto on the meade go in would help

http://s473.photobucket.com/albums/rr93/todd8137/13%20marc%20cannon%20eos%20300d%2012%20dob/

theres the link and thanks for reading and take in and take in a look at the pics thanks pat comments are welcomed here

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Hi Pat. these are not bad - I have not got them that good (yet :() - would be interested to know what your camera settings were if you can remember - I am still finding out what the basic controls are and their effects ie gain - just what does that do. On the power tank - I have been using a 12volt jump starter pack but have read that there may be problems using these as the voltage is not stable so it has the potential to burn you out - I am going to stick with batteries from now on - I get about 10hrs out of a set of 8 AA.

Cheers Paul

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hi well its the skywatcher one so a hope it does not aa will fuse the cable from power tank to scope as well a think a lot of people use the ones that start cars that are unstable but a think that this one should be safe or skywatcher would have big probs ,the crawford dual speed focuser came and ya was right tere was a gap and a simple diy job sorted it a posted a pick in dob users group just got to wait to test it all out its the low profile on the 1.25" adsaper is rubbish that will need a up grade at some point a williams optics 1.25 adapter should do the trick cheers pat

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Hi Pat, the new focuser looks good in the picture - its amazing the difference they make to your viewing. On this topic of focuser s I have spent most of today working on the rack and pinion focuser on my refractor scope, when i was using the camera the other night I found it hard to get focus spot on as there seemed to be some slop/play somewhere in the tube - so I stripped it right down and have ended up removing the 2 felt pads the tube slid on, this seems a bit primitive. I have now made a "cradle" out of a solid nylon block and the tube now sits in that with the tension applied as before from the adjustment pad (nylon) at the top of the tube, the difference is amazing and very smooth (lubricated it with automotive dry lube stick) and there is no movement in any direction when reversing focus direction. Of course the clouds have rolled in and look like staying around for a few days so wont be able to try it out on the moon. (or anything else!!) :mad:

Cheers Paul

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hi paul the new focuser works a treat and enables better focus with the 300d the goto we have is a bit slack and some times with the dslr atached it does not like it ,i will have a look at the action on the inside of the 90mm later to see why mine playsup, the prob is am looking forward to get in out there my self so a can get some 1 / 2 min shots of m42 and all the rest be great, even the moon is a good target for me to parctice on at the min we have cloud at the min here but the metcheck say clear after 21:00 tonight so we will see cheers pat

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