Sharpcap reticle for collimation assist?

[northcanadian]

Hi folks:

I have an sct and was wondering if using the reticle in sharpcap to make sure the 'donut' is centered in the eyepiece when collimating would be helpful?  I have not tried this yet but am curious if others use this?  Thanks

Clear skies

Roger

[Uplooker]

Hi Roger, have a search for "Al's Collimation Aid". Just expand the circles to the correct diameter for relevant circles on the Airey disc. It even indicates which screw to adjust to a amend the collimation. I use it with my SPC900 webcam.

Ian

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[Steve Ward]

Or "Mire de Collimation"  .... http://sweiller.free.fr/collimation.html

[Helen]

Great link Steve thanks!

[Steve Ward]

I find a webcam shoved up the spout makes adjusting the secondary a doddle , you can mess about to your hearts content while monitoring exactly the effect your tinkering is having on the laptop screen.

Saves all that faffing about to and fro the EP trying to remember what moves what ... 

[jambouk]

I find the seeing is usually so bad i can't tell if i'm out of collimation or not with my sct

Jd

[Merlin66]

+1 for Al's collimator