Concept: Although the wide true field capability allows all Tele Vue scopes to operate as their
own finders, I thought it would be nice to have a simple finder to point the telescope. The
finder
had to be elegant in form, function and operation and not have to be removed when storing the
telescope. A unit-powerfinder serves these goals best. Choosing an "inverse-Herschelian"
design for projecting a small "red star" seemed appropriate. With a 39mm "exit pupil, " and
unlimited eye-relief, I believe we met our goals. The proof? My wife now actually enjoys
finding
objects with it! - AI Nagler.

The elegant solution to pointing your telescope. Starbeam is the ultimate unit-power finder.
Starbeam is the unit power finder designed to allow you to point to any object and have it
appear in the eyepiece no matter the magnification. A transparent "red-star" appears
projected
against the sky background. The "star" is actually a small pinhole illuminated by a red L.E.D.
Placed at the focus of a beam-splitting mirror/lens, the "star" is projected to infinity.
Starbeam
says "You are here!"

The size of the pinhole and focal length of the mirror result in a 10 arc-minute redstar, (1/3 the
diameter of the moon). Its size, color and adjustable brightness make it easy to see against
any twilight to dark sky background. With a mirror aperture of 39mm, the projected image
can
be easily seen at any distance behind the mirror, whether 2 inches or 2 feet! Because the
mirror surface is uncoated, and a compensating curve is designed into the back of the mirror,
the sky background appears normal through it.

There are two base channels available for Starbeam, one for Tele Vue telescopes and one for
telescopes of 4" or larger tube diameter. For Tele Vue telescopes, specify Starbeam-T. For
other telescopes, specify Starbeam-U. Note. Does not fit on Tele Vue Ranger.

Adjustment screws and a lock screw allow easy alignment with your telescope.

Now supplied with a flip-mirror that permits viewing at any angle from in-line to 90º, a great
feature when telescope is pointing at high angles. Available as a retrofit to existing
Starbeams, price £15.00.

Let Starbeam point the way for you.

Prices:
SFT-1003 - Starbeam Tele Vue Base - £138.00
SFU-1004 - Starbeam Newtonian Base - £138.00
SFC-1009 - Starbeam SCT Base - £158.00
SFM-1005 - Flip-Mirror Only - £12.00

The Astronomy Shop

1 Tone Hill. Wellington

Somerset TA21 0AU

United Kingdom

Telephone: +44 (0)1823 665510