© Baader Planetarium GmbH | 2020
3
Baader MaxBright
®
II Binoviewer
– DEVELOPED ESPECIALLY FOR ASTRONOMY –
• Thanks to its large 27 mm prisms with 25.5 mm free aperture (on the telescope
side even 26 mm), the MaxBright
®
II Binoviewer offers a significantly larger field of
view than cheaper binoviewers. The free aperture is only slightly inferior to many
more expensive bino-viewers like our Mark V Großfeld (Giant) binocular (with 30
mm prisms).
• Its features range from 7-layer multilayer anti-reflective coatings on all glass air sur-
faces through a high-performance beam splitter with dielectric splitter layer to self-
centering ClickLock
®
quick clamps for both eyepieces, which have been specially
redesigned for the MaxBright
®
II.
• Eyepiece clamps with diopter adjustment for both eyepieces allow perfect re-
focusing for each eye – this is essential for using any bino-viewer.
• Because of the 1:10 power gear ratio, a gentle, small rotation by 20° of the Click-
Lock® ring is enough to securely clamp every 1
¼
" eyepieces – or to release it
later. Such a small rotation results in a lock which is at least as tight as a single
clamping screw which is tightend with much more force.
We offer several Glasspath Correctors for our binoviewers, which are designed to
correct spherical aberration. They are also designed to remove colour aberration which
will occur because of the long light-path through the glass prisms in the binoviewer,
if it is used with fast telescopes (with focal ratios between f/4 and f/7) because of the
highly convergent light beams present in these instruments.
Also, as a Glasspath Corrector moves the focus away from a telescope – similar to a
Barlow lens – you can use the binoviewer with almost any telescope. Only if you use
"slow" telescopes like Schmidt-Cassegrains (SC), you do not need a glass- path com-
pensator, because the lightbeams do not converge at such a wide angle. Nevertheless,
they can still be used to achieve different magnifications. The sharpness will increase
even when used with SC- and HD-telescopes.
These "colour-abberation correctors" are an important addition to the binoviewer.
The peculiar housing of the three models with a clamping collar is designed to be
inserted between T-2-screw-connections. This way, these lenses can be used with all
telescopes, in different places of the light path, and you can achieve several distances
for projection.
The MaxBright
®
II Binoviewer is made according to high quality standards. The opti-
cal polish of the prisms, all coatings and last, but not least, the optical adjustment and
orthogonality of the 27 mm large prisms are so precise that the image doesn't deterio-
rate even at highest magnifications.
If you you want to experience the universe relaxed with both eyes open, then the
MaxBright
®
II Binoviewer is the right choice for you!
