10
Manual: MaxBright
®
II Binoviewer
the part of the sky which you can see in it. That's why a 32 mm Plössl with about 50°
apparent field of view usually shows already the largest true field of view. Neverthe-
less, we have two eyepieces which can show you even more. This is only possible
because their field stop is not inside of the nose piece. These two eyepieces suitable
for binoviewing are:
• Eudiascopic 35 mm eyepiece 1¼"
# 2404105
with 45,6° field of view. This is almost
as large as the field of view of 32 mm 2" Erfle eyepieces.
• Hyperion
®
Aspheric 2" eyepiece 36 mm
# 2454636
– 50° field of view with the in-
cluded 1¼" adapter.
Both eyepieces avoid the "tunnel view" which is typical for longer focal lengths, so that
they combine lower magnifications and a convenient field of view.
Using Zoom-Eyepieces
Many economically priced zoom eye-
pieces only have a small field of view
which decreases with higher magnifica-
tions. Furthermore, they have a low opti-
cal quality especially at higher magnifica-
tions.
In contrast to standard zoom-designs,
our Hyperion
®
Universal Zoom Mark IV
eyepieces are made so that they provide
the best sharpness and the largest field
of view at the highest magnification.
Simple zoom-eyepieces are designed the
other way round. That's why we recom-
mend especially the Hyperion
®
Zoom
eyepieces for use with a binoviewer. The
precise click stops at 8/12/16/20/24 mm
make it easy to set both eyepieces to the
same magnifications.
Using rubber eyeshields
If your eyepieces are equipped with round rubber eyeshields (like e.g. our Hyperion
or Morpheus eyepieces), leave them in an upright position, unless you are wearing
glasses. If you need to wear glasses, fold the eyeshields down to see the complete
field of view. If you are using eyepieces like the Baader Classic Orthos, it is best to use
the eyeshields with the folding side wing.
Please note:
If you are very short-sighted, you should wear the glasses for observa-
tions with the binoviewer – focusing will be easier then. This is also valid in the case
of astigmatism, which is best corrected with glasses (or contact lenses) – you can't
correct for astigmatismus only with the diopter adjustment.
MaxBright
®
II Bino-viewer with FlipMirror II Star Diagonal
and two Hyperion® Universal Zoom Mark IV eyepieces
on a Schmidt-Cassegrain.
