Andrew et.al., two ranchi shots.... :-(

These were taken with .010 fishing line during 80 deg weather mid-day against a far tree. The heat wave shimmering made it difficult to get anything really clear and of course semi-transparent monofilament does not help resolution.

What do you think?......I can not be sure if the objective is overcorrected, undercorrected, or a really good late model Celestron CR150-HD.

Attached Image:

Hi larry...to me it looks either undercorrected or has a turned edge-- you should probably be a little closer to focus so as to have fewer lines in the image...I found a good diagram of what to look for on APM's site...
http://www.apm-us.com/amateur/chromacorr_correction.htm