[davewaldo]

Thanks LEON for your help.

Last night I discovered that the nut I was using on the threaded rod was asemetrical and was causing the rod to move very unevenly. So I made a new nut and CD combo with a better nut and everything seemed to work better. As you can see from the shots below, I have managed to remove most of the wiggle (side to side PE) from the image. However after doing a serries of 10 sec exposures to see how my mount was tracking (thanks Richardo) it showed the stars jumping up and down along the same axsis as the tracking. I'm putting this down to my setup not being very smooth yet. I think the tracking speed is very close if not correct as my 4 min exposure below doesn't show star trails just the PE described above.

So I'll work on it some more so smooth it out and I'll see how I go.

The first two images have the same settings as my first post however the last image is 4 min @ f4.0 with canon 20-35 2.8L lens.

I think its gotten a lot better since my first night.


Cheeers,

Dave.