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Old June 30th 04, 06:59 PM
CLT
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Default 2" 90° Apparent Field Eyepieces Announced

Here's some more info from Bill Burgess: It's a 7-element design,

**** all ED glass,****

?????

"broadband multicoatings on all air-to-glass surfaces", and
pinpoint stars to the edge down to f/3.5. Availability is at least 60
days out.


I'd have to see this first.

Clear Skies

Chuck Taylor
Do you observe the moon?
Try http://groups.yahoo.com/group/lunar-observing/
And the Lunar Picture of the Day http://www.lpod.org/
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The part about pinpoint stars to the edge of a 90° apparent field 29mm
eyepiece sounds very attractive. Maybe some of our eyepiece design
mavens can tell us why this is either impossible or comes at the price
of field curvature, loss of contrast or some other desirable optical
characteristic. Or not.

Clear skies,
Shneor Sherman