I am selling my AP155 EDF with 4" focuser and 4" field flattener. It is a 1993 model with smooth Corvette white finish. Condition is very good, there are a few places where some paint has flaked off. The largest one is shown within the red circle in the image. Optics is excellent. If interested, I can send more pictures. Asking price is $8100 plus shipping. This is below the price I paid for it and $780 below the new price. There is no wait and the money you save can go towards upgrading the focuser to the feathertouch version when it is available. I am the 2nd owner and the serial number is 155EDF22. Includes 4" extension tube and 2" to 1 1/4" adaptor. Previous owner is a well known astro photographer who has published many images taken with this scope. Mount not included.