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Old 18-11-2019, 06:08 AM
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Don Pensack
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Don Pensack is offline
 
Join Date: Aug 2006
Location: Los Angeles
Posts: 390
Quote:
Originally Posted by gregbradley View Post
What is it, a repackaged Nagler for US$1245?

Greg.
No, an entirely new design, 85°, long eye relief.
See the following from TeleVue (you can find pix on line):
While the Lunar landing of Apollo 11 inspired generations
of people in countless ways, a unique experience in
the development phase of the Apollo program inspired one
man on a journey which would eventually change amateur
astronomers’ views of the heavens. As an optical designer at
Farrand Optical Company, Tele Vue founder Al Nagler was
tasked to design an optical system for a simulator which the
Apollo astronauts would use to practice landing on the Moon.
When he finally stepped into the Lunar Excursion Module (LEM)
trainer to see how his optical system performed, the view out
of the craft’s iconic triangular window of the simulated Moon
below and stars above was breath-taking. Little did he realize
at the time, but that was the moment of inspiration that ultimately
resulted in the “Nagler” eyepiece. (See “The Eyepiece That
Changed Observing,” Astronomy, Dec. 2005.)
Tele Vue Apollo 11 Specifications
Development Team: Paul Dellechiaie, Al Nagler, David Nagler
F.L.: 11mm
A.F.o.V.: 85°
Eye Relief: 18mm
F.S. dia. (effective): 16.2mm
Coatings: Glass matched multi-coatings on all surfaces
Barrel dia.: 1.25” with 2” thread-on adapter
Filter Thd.: 1.25” and 2”
Length: 4.8”
Width: 2.13”
Weight (2”/1.25”): 21.9 oz. (1.37 lbs.) / 18.6-oz. (1.16 lbs.)
Total Production: 300
In recognition of the 50th anniversary of
the Apollo 11 Moon landing, Tele Vue is
proud to celebrate our founder’s contribution
to the greater effort that made the mission
possible and ultimately successful. The
special, limited edition commemorative Tele
Vue Apollo 11mm eyepiece pays tribute to
the simulator program that was invaluable to
astronaut training and to the direct influence
it had on the eyepieces we enjoy today.
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