collimation - Page 2

OzStarGazer · #21 01-01-2014, 09:34 AM

The Seben collimator has mostly excellent reviews on Amazon:
http://www.amazon.co.uk/product-revi...owViewpoints=1

At any rate I have no film canister, nothing to drill a hole in the cap with and nothing to take off its basis. If I had to buy all these tools it would cost me more than the laser collimator.

PS: There are also Chinese sellers on eBay who sell "Seben" collimators, but I wouldn't buy from them. They look a bit different and there is even the possibility that they are fakes?? I don't know, they don't quite look like those sold on Amazon or by Seben-Europe.

OzStarGazer · #22 01-01-2014, 10:27 AM

This is the real one - on Amazon, Seben-Europe on eBay and also on the original Seben webpage:
http://i1227.photobucket.com/albums/...psc3c6e647.jpg

And this is the one sold by Chinese sellers on eBay:

http://i1227.photobucket.com/albums/...psbb5bfb65.jpg

There are some obvious differences (like labels?). I have no idea if it is really a fake, it could also be an old model, but I just didn't feel safe, so I bought mine somewhere else. I think it looks more like the Skywatcher collimator than the Seben collimator, like they used the wrong photo?

Pete53 (Peter) · #23 01-01-2014, 10:34 AM

Hi,

I am also new but found the guys at Bintel in Sydney to be great. I bought a cheap laser collimator ($60) with my scope and they showed me how to do it and adjust the primary and secondary mirrors Was easy for my new 10 inch Dob - took about 5 mins max. You can also ring them if you can't get to their store. Speak to Don or Michael.

Shano592 (Shane) · #24 01-01-2014, 08:12 PM

I use the star method for my SCT. I am not sure if you can do this on the newts and dobs.

You centre on a star, and then take it out of focus at the eye piece. You then adjust the secondary mirror until the secondary shadow is right in the centre of a ring of light - the out of focus star.

Refocus, and you are done.

Definitely, don't be afraid to try collimating your scope. It will be good to know, when you really need it.

OzStarGazer · #25 06-01-2014, 03:26 PM

OK, it arrived and it appears that my scope is indeed collimated.