Focus Aid for Photography

[Rocket Pooch]

Hi,

After a chat at last nights non-viewing evening I was asked to put some details up on the message board relating to how to make a focus aid for astrophotography.  Firstly here's a link for a professional version: -

http://www.digitalastronomy.com/html/focus-master_telescope_focusin.asp

You will see all it comprises of is a black disk that goes over the end of the talescope with three holes at 120 degree angles, these professional versions are about £60+.

Or you can just use a bit of cardboard and save £60: -

http://www.newastro.com/newastro/book_new/c2_d.asp

Have fun, because they really work well.

[malcolm]

very useful thanks alot