Guiding

For those interested in imaging and image processing with DSLR, CCD, webcam or film.
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dean_kos

Guiding

Post by dean_kos » Thu Feb 23, 2012 2:28 pm

Am I correct in assuming that to do any sort of guiding you mount has to be computer controlled ??

tbrandwood

Re: Guiding

Post by tbrandwood » Thu Feb 23, 2012 5:10 pm

I don't know much about this but there are these kind of things: http://www.firstlightoptics.com/guide-c ... uider.html
They do it without a computer, but very expensive!
Last edited by tbrandwood on Fri Feb 24, 2012 10:44 am, edited 1 time in total.

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DRatledge
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Location: Adlington
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Re: Guiding

Post by DRatledge » Thu Feb 23, 2012 6:41 pm

Dean,
The short answer is no - your mount does not have to be computer controlled. In the old days(!!!) we used to guide manually by pressing the buttons on the hand control. Today a webcam (modified ideal) would watch a star and when it moves off centre would send commands to press the correct button on mount hand box - just like we used to. So all you need is a webcam + laptop and an interface to your hand control box of the mount. Shoestring do the interface as do others. If your hand control box has no guide port (like the EQ5) then you have to connect the wires to the appropriate buttons inside the hand control box yourself but it is not difficult.

cstone
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Joined: Mon Oct 12, 2009 8:07 pm
Location: Bury

Re: Guiding

Post by cstone » Thu Feb 23, 2012 7:33 pm

I've just received my new shoestring astronomy box
http://www.store.shoestringastronomy.co ... /gpusb.jpg

Also I managed to win an off axis guider for £21. Plus £5 for postage
http://www.ebay.co.uk/itm/ws/eBayISAPI. ... 500wt_1202

Taken some advice from Gerald. So going to give it a try see how I get on. Just need a clear night!

Carl
Celestron 11" Telescope
Eq6 Pro Mount
Eq5 Mount
EQ Mod
QHY5 Guide camera
Cannon 1000D SLR Camera

I choose to image with an 11" SCT Celestron in this decade and do the other things, not because they are easy, but because they are hard......

dean_kos

Re: Guiding

Post by dean_kos » Fri Feb 24, 2012 12:36 am

Are the shoestring boxes mount specific ? Or does one size fit all ? And roughly how much are they ?

cstone
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Posts: 162
Joined: Mon Oct 12, 2009 8:07 pm
Location: Bury

Re: Guiding

Post by cstone » Fri Feb 24, 2012 8:49 am

My Celestron had an Autoguide port so it was case of plugin onto the mount and then use GPUSBCheck to make sure it was connected to the PC. They do a parallel and USB option. But USB would be the way to go.

I then switched on the Mount and loaded up C2A on the PC and then moved the mount on the RA and Dec and could see the cross hairs on the maps move. So I knew it was all talking.

A list of compatible mounts can be found further down the list
http://www.store.shoestringastronomy.co ... cts_gp.htm

If you don't have a port on your mount you may need the hand controller version. As for cost about £90 from Optic Star, though they are abit miserable and wouldn't offer a discount.
http://www.opticstar.com/Home.asp?p=0_10_5_0_5

You still need good alignment all this will do is remove the errors in your mount.
Celestron 11" Telescope
Eq6 Pro Mount
Eq5 Mount
EQ Mod
QHY5 Guide camera
Cannon 1000D SLR Camera

I choose to image with an 11" SCT Celestron in this decade and do the other things, not because they are easy, but because they are hard......

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