Daniel wrote:

The SC is generous with back focus. ... Just undo the mirror lock (if it has one) and turn the main focus nob to get in the ballpark and fine focus with the autofocus after locking the mirror again.

Thanks, Daniel, I'll give it a look-see. The LX200GPS manual shows a primary mirror lock knob. The LX200 manual does not show one. Any idea how far the backfocus is in terms of inches or mm? - Kurt _______________________________________________ Sent via CSolutions - http://www.csolutions.net