After hearing the PST owners lament about reaching focus I had a play with a little webcam I was given yesterday. Instead of bringing the PST focal plane out using a Barlow I put a small webcam in, further down the eyepiece holder. The webcam in question is a PCWorld (UK) 'PCL100K'. The body is no larger than a golf ball, the board inside is exactly 1 1/4" diameter. I mounted the board in an old 35mm film pot, et voila,webcam solar imaging.
-------------------- Jc
ATM 10" F6.1, 1/25th wave spec (max wavefront error +/- 1/12.6 in zone 4 of 6, sodium light )
6" F7 spec
127mm F9.4 Refractor
10 x 50 bin
ETX80 (finder)
Canon 20D
and a curious mind