I got answer from Andrews regarding the difference between ED80 and ED80 Pro for those who are interested:
Quote:
I made some investigations today and we believe the ED80 uses FPL51 glass, whereas the ED80 PRO uses FPL53 glass. FPL53 is noticeably superior to FPL51 and I had seen the statistics and optical performance difference on the internet a few weeks ago in checking something else.
I believe the ED80 PRO has a 10:1 Crayford style focuser whereas the ED80 has only a normal Crayford style focuser (no vernier reduction drive). We checked a ED80 this morning at the shop, but not a ED80 PRO, yet.
Also, the ED80 PRO has a gold tube colour and white coloured tube rings.
|
Skywatcher's website does not even mention ED80 (non-pro) so I assume this is their old model that is not being produced any more.