Getting Started
I
became fascinated with optics and the sky at an early age. I
bought my first telescope at 15 years with money earned mowing
yards and selling greeting cards door to door. The scope was
a 4" Criterion Dynascope Newtonian reflector with the original
Criterion "Z" style equatorial mount -- which consisted
of a flimsy kink in the shaft that connected the scope to the
tripod. I was already well-read enough to know the difference
between spherical and parabolic mirrors, and when the delivered
scope showed unmistakable signs of spherical aberration I promptly
sent it back for exchange for a scope that met the advertising
claim of a "well-corrected parabolic mirror." The result
was a scope that formed excellent images and served for many
years before being sold for a pittance for use by the precocious
daughter of a best friend.
Desperately
Seeking Sharpness
College, a career in science and engineering, and a family intervened
for a couple of decades. But, when Halley's Comet reappeared
in the mid-1980s I got interested again and acquired a Meade
8" LX-3 SCT. This served admirably for a few years, but
eventually I became dissatisfied with stars that were blobs at
high powers instead of pinpoints. A subscriber to both Sky
& Telescope and Astronomy magazines, I began to
linger over ads from a small company in Rockford IL -- a new
company that was making high quality triplet apochromat refractors.
Delightfully and cleverly named Astro-Physics and owned by a
truly innovative perfectionist named Roland Christen, AP made
APOs that promised the very pinpoint star images I craved, so
when the bank account permitted I took the plunge, ordering a
130mm f8 Starfire EDT. The Starfire was a thing of beauty, its
white tube a ghostly luminesncent gleam by starlight, and the
images were every bit as sharp as advertised.
However,
there's a big difference between 130mm and the 203mm of the SCT,
so I was soon in the market again. Another few years of saving
and sale of the 130mm EDT led to the purchase of the AP 155mm
f7 EDFS with FPL-53 glass and GTO mount, a classic scope that
is still my favorite for all-around observing. Now mounted on
AP's Mach1 equatorial GTO head, nothing beats the 155's combination
of crystal sharpness, unsurpassed contrast, moderate weight,
great handling and flexibility. Since then I've added the AP
130mm f6 EDFS, the 105mm Traveler and a William Optics ZenithStar
66mm SD, which serves as a superfinder for the 155mm AP. Wonderful
scopes, all, especially when used with TeleVue's outstanding
Nagler eyepieces.
Aperture Fever
But pinpoint star images aren't enough
-- aperture fever overtakes us all. The final piece of the puzzle
fell into place with the acquisition of a 16" truss Dob
from Rick Singmaster's Starmaster Portable Telescopes. Equipped
with a mirror by renowned expert Carl Zambuto, this scope breaks
down into pieces that are just within my size and weight limits.
The images are nothing short of phenomenal. Not only do faint
planetaries reveal themselves and
galaxies begin to show structure but planets exhibit a plethora
of tiny low-contrast detail if the night is good enough to support
the aperture. The best view I've ever gotten of Saturn happened
on a night that was so heavily overcast with haze that the only
objects visible (and faintly at that!) were Saturn and a couple
of first magnitude stars. But the atmosphere was dead calm, and
at 400X the view in the Starmaster was just spectacular -- including
distinctive limb darkening, which is difficult to see in small
apertures!
The Next Generation
Having lived the 50 year odessey described
above and enjoyed many beautiful views of the night sky along
the way, one of my favorite pastimes on the telescope field these
days is witnessing the surprise and wonder of budding
new young astronomers as they capture their first view of the
heavens at club star parties. My all time favorite was the reaction
of one tiny young lady of no more than 8 years of age on first
viewing Saturn. She gasped in amazement, "That can't be
Saturn; it must be painted on the front of your telescope!"
Priceless! |