ATM A few questions before I screw my Dob together for the first time..

["Richard Rovelstad" <Richard.Rovelstad@worldnet.att.net>]

I have used a black marker to darken the edge of the diagonal mirror, should
I do the same for the primary?  Also, should I put a mark or a sticker in
the center of the primary to aid in collimation?  Lastly, I remember reading
about making a collimation tool from a 35mm film container, but I can't seem
to find the reference now that I need it.  Any replies appreciated.  Thanks
for reading.

Peder