Not sure which to go with....

Hi all,
I'm preparing to do some deep sky imaging with a Rebel XT and an 8" SCT (prime focus) mounted on an LXD75. I'm teetering on the idea of either using a guidescope or an off-axis guider. I don't have autostar and plan to manually guide my rig. Basically I'm trying to find out who's using which tools that yeild the best results using a prime focus setup with DLSR. Thanks in advance!

Greg

Greg,

I used a guidescope on an LX75 with good results (refractor guiding refractor), and I use a guidescope on my 14" SCT.

I have heard that off-axis guiders are better for SCT's, due to mirror shift and related issues.

You are probably going to want a focal reducer. My LXD75 periodic error is hard to guide out at longer focal lengths.

Keith