Amateur
astronomers
have been
asking for
this for
years, and
it's finally
here- a special
version of
the Oberwerk Astronomy
Binocular with 1.25" non-rotating
helical focusers! Just
like the
25/40x100mm
Astronomy
Binocular, broadband
multi-coatings (non-reflective
green/purple)
are used
throughout,
including
on the massive
porro prisms.
Two matched
pairs of fully
multi-coated wide-angle
eyepieces
are included-
24.43mm ( 25x )
and 10mm
( 62x ).
And because
the helical
focusers
are a non-proprietary
1.25" design,
your favorite
1.25" eyepieces
can be used
as well.
The eyepieces
do not rotate
when focusing-
a feature
found only
on high-end
helical focusers.
The rest
of the binocular,
including
the semi-apochromatic
triplet objectives,
is the same
proven design
as found
in the original
25/40x100mm,
but the cast
aluminum
body has
a beautiful
automotive-quality
champagne
finish, giving
it a more
contemporary
look.
Complete
package price
includes
binocular,
removable
handle, lightweight
nylon form-fitted
case, wooden
tripod with
removable
table-top
tripod, and
two pair
of oculars.
An optional
7x50mm correct-image
finderscope
(as shown
at lower
left) is
available.
Binocular
is pre-tapped
for the finderscope's
precision-ground
dovetail
base (no
adjustment
required-
just lock
it in and
it's aligned).
Because accurate
collimation
is critical
at higher
magnifications,
every Oberwerk
binocular
is tested
and collimated
prior to
shipping-
so even at
62x, you'll
enjoy perfectly
merged images. 
Objective size |
100mm |
Magnification |
25x and 62x |
Prism |
BAK4 |
Optic coating |
Fully
Multi-coated |
Field of view |
25x-
2.5° |
Exit pupil diameter |
25x-
4mm |
Exit
pupil
distance |
25x-
16mm |
IPD (inter-pupil distance) range |
58-80mm |
Weight |
26 lbs, tripod 16 lbs. |