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Old 12-09-2007, 01:20 AM
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luka
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Join Date: Apr 2007
Location: Perth, Australia
Posts: 1,164
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.
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