Tele Vue Bino Vue User Manual

TM

BINO VUE INSTRUCTIONS

Concept: At Tele Vue, the driving force has always been to get as close as possible

to the contrast, resolution and field of the most remarkable instrument of all: the

human eye. While always respecting the need for viewing comfort, convenience

and value, we have broken through conventional barriers to bring you eyepieces

and telescopes with performance dramatically closer to the “spacewalk view-

ing” goal. One major limitation has been the lack of binocular viewing. Look at

the night sky with one eye closed. It’s missing a lot. Open both eyes and see the

dramatic improvement in resolution, contrast, faint star detection and viewing

comfort. All this plus an illusion of depth. Yes, your brain loves two eyed viewing,

even when it is not true stereo. Open your eyes and mind to Bino Vue — Al Nagler

Parts List:

Bino Vue Package
BVP-2002

- Bino Vue with Flat Coupler
and 2x Amplifier installed

- Extension Coupler*

- Extension Tube*
(*packaged separately)

Extension Tube

Bino Vue with Flat Coupler and 2x Amplifier.
Filters may be used.

Bino Vue Body
BVB-2003
Bino Vue with Extension
Coupler & Extension Tube
installed

Limitations of
ordinary binoculars

You’re probably aware that
the color correction and
resolution of all high pow­ered binoculars are far less
than ideal. Usually the size,
weight, cost, inconvenience
and lack of interchangeable
eyepieces render them un-

desirable for all but the most
die hard fans.

Enter Bino Vue

We immediately recognized
the advantages of a binocular
attachment that is used like an
ordinary binocular as far as
setting interpupillary distance

without refocusing
and is set up as
easily as changing
an eyepiece.
Because of the
high cost and a few
other limitations,

Extension Coupler

we felt the astonishing ex­perience, in particular for
planetary, lunar, double star,
and globular cluster viewing
should not be denied.

Why add an image
amplifier

Our 2.0x image amplifier/
corrector compensates for
Bino Vue’s 5.1" of optical
path length as well as the
slight amount of naturally oc­curring color and astigmatism
introduced into the image by
the additional prism glass.

we hesitated bring­ing this product to
market. However,

Most noticeable in fast
scopes and at high power,
we felt it important to design
out this degradation. Bino
Vue is the only fully corrected
system available today that
will neither vignette at the
widest field nor compromise
your telescope's high power
performance.

Bino Vue Uses

Bino Vue comes standard
with the Flat Coupler and
2x Amplifier installed on the
body. This permits the Bino
Vue to be used in all tele­scopes with just a moderate
focuser in-travel required. The
2x Amplifier has filter threads
to accept 1¼" filters. The Flat
Coupler provides enough
space for the inclusion of filter
without hitting the diagonal
mirror when using 2" Tele Vue
diagonals and the 2"-1¼"
Tele Vue "High-Hat" adapter.

If your telescope re­quires the Bino Vue to be
parfocal because it cannot
reach focus in the standard
configuration then;

1) unscrew the 2x Amplifier
from the Flat Coupler,

2) unscrew the Flat Coupler
from the Bino Vue body

3) Thread in the Extension
Coupler to the Bino Vue body

4) Thread the 2x Amplifier
into the Extension Coupler
It is still safe to insert the
Bino Vue into 2" Tele Vue

diagonals with the 2"-1¼"
Tele Vue "High-Hat" adapter

without hitting the diagonal
mirror. If a filter is threaded
onto the Bino Vue in this
configuration, it WILL hit the

Bino Vue with Flat Coupler removed

Bino Vue set up with Extension Coupler
and 2x Amplifier for parfocalization. Do
Not Use Filters.

Bino Vue with Extension Tube installed
for use with scopes that do not need
the path length compensation of the 2x
amplifier. Filters may be used.

mirror. Take
precautions
to ensure this
does not hap­pen.
If you will

also be us­ing the Bino
Vue with tele­scopes that
have enough
focus in-travel
to allow the
Bino Vue to
come to focus
without the
2x Amplifier,
such as SCTs,
then;

1) install the
Extension
Coupler as
described
above

2) thread the
empty Exten­sion Tube into
the Extension
Coupler

Then, refocus
the SCT mir­ror. (This does

increase the E.F.L. of the SCT
about 25% due to the nature
of the secondary relative to
the primary). Note: some
ghosting may be seen when
bright objects are outside,
but near to the viewing field.
Careful eye positioning can
minimize this.

Using Bino Vue

Bino Vue is very simple to use.
First, start with two Tele Vue
eyepieces to ensure exact
matching of eyepiece focal
lengths. Insert the eyepieces
into the EYEPIECE HOLDERS
and tighten both Eyepiece
Clamp Rings just enough to
hold the eyepieces securely
against gravity, but loose
enough to slide them up
and down with your hand.
Doing so will make diopter
adjustment a snap.
Next, set the interocular
distance. While looking into
Bino Vue, grasp both sides of
the body and either squeeze
together or spread apart until
the two circles merge into one
(just like binoculars). Focus
the scope normally. If there is
a difference in focus between
the eyepieces, simply slide
one of the eyepieces in or out
to match the focus difference
of your eyes.
A note on the collet
type Eyepiece Holder. This
method of holding the eye­pieces in place insures the
optical axis of the eyepieces
remain in-line with the optical
axis of the rest of the system.
Slight misalignment of the
optical axis can cause fatigue

or eye strain when viewing
for long periods and at high
powers.

A Final Note

If you use Bino Vue with any
of our telescopes for terrestrial
viewing, you will enter a new
world of visual experience.
And, whether you’re viewing
in daylight or at night, you
will hardly realize that each
eye is seeing less than 50%
transmission normally seen at
the same magnification. The
reason is that the resolution
and contrast are so high, and
two eye viewing seems to “re­cover” some of the light loss.
Indeed until you go to very
high powers, you may prefer
these views with seemingly
darker sky backgrounds.

Warranty

Each Bino Vue is carefully
collimated and tested at Tele
Vue. Bino Vue is warranted
for 5 years against manufac­turing defects. Dropping or
banging it may disturb the
collimation. Never remove
the covers or any other part,
or you may void the warranty.
Disturbance of collimation is
usually evidence of abuse, it
is warranted at the discretion
of Tele Vue. Please handle
Bino Vue carefully as you
would a telescope.

Setting Interocular Separation

V:24Sep13

32 Elkay Drive, Chester, New York 10918 845.469.4551 www.televue.com