Orion's 100 mm APO

Depends on the use. The 80 is relatively short and wide field. The 100
is longer (900 mm fl vs. 600 mm fl), accounting for a substantial size
increase. 900 mm is less suitable for wide field users. It is not just
a matter of more aperture, but 1.5x more magnification (and narrow FOV)
for any particular EP.

Plus it is heavier and longer -- therefore less portable. The ED80 and
ED100 are very different animals.

Phil

Caesar Garcia wrote:
People bought the 80 mm because that's all was available at a fairly
cheap price from Orion. Now there is another choice. It is not
illogical to think to that a sizable fraction of these same people
would spring for something better.

Caesar Garcia

(Jon Isaacs) wrote in message ...

Astromart will now be glutted with everyone trying to sell
those pint-sized 80 mms so they can buy this new one.

I don't really think so, the ED-80 is compact enough to be considered "Airline
Portable" and "Grab and Go." The new scope at F9 is a different animal...

Jon