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Bestsellers can be improved: This most highly rated Hyperion
zoom-eyepiece is available now in its fourth generation and has become a
lot more versatile. The 290 gram housing is lighter by 80 grams and now
features a slim 55 mm diameter, both features that make it even
more desirable for use with binoviewers. The adjustable eyecup can be
removed to expose a video/photo thread and create the maximum in "nose
space". The click-stop action has been smoothed out to more easily
access the magnification stops at 8/12/16/20 and 24mm. Click-stops are
mandatory to easily and precisely set both eyepieces to the same focal
length for effortless binocular observation without eye-strain. The
zooming-mechanism as well as the inner zooming rails for all lens groups
have been modified to improve cold temperature operation and the
parfocality for each focal length has been finetuned.
important however – the Mark IV offers almost 4 mm more backfocus. This
is most beneficial for application with a multitude of spotting scopes.
Many spotting scopes nowadays do allow the mechanical insertion of
astronomical 1¼" eyepieces –
but in many cases this combo cannot focus to infinity. By utilizing the
supplied spotting-scope adapter ring "A", the Hyperion Universal Zoom
almost reaches almost four mm deeper into the eyepiece clamp of all
those spotters, to safely reach infinity focus. When removing the 1¼" nosepiece,
a 1 3/8" thread inside the "A"-ring will make the Mark IV firmly
thread onto all Celestron-Ultima spotters and it´s namesakes. Optional
available is a bayonet-adapter for Zeiss Diascope-spotters. Threaded
adapters for many other famous spotting scope brands (that still don´t
allow 1¼" eyepiece adaptation) will become available in the future – now that it makes sense to produce them.
using the Mark IV on a telescope though, the "B"-ring (supplied) should
be chosen instead, to keep the bottom of the eyepiece flush with the
upper end of most star diagonals. Otherwise the bottom 2" SC-threaded
holding ring that holds the "A" or "B" ring in place may directly rest
on the clamping screws of the star diagonal. The supplied 2" SC-ring
also allows the Mark IV to firmly mount the eyepiece onto any SC-thread,
especially onto our 2" clicklock star diagonal, with the help of the
The Mark IV comes with both the 2" and 1¼" nosepieces mounted, each nosepiece having it´s own dust cap and both nose pieces being threaded to accept either 1¼" or
2" eyepiece filters. Both nosepieces are free of the hated undercuts.
Instead our proprietary Zero-Tilt Safety-Kerfs provide an added measure
of security by reducing the tendency of an eyepiece to slip from an
unlocked eyepiece clamp. An additional little feature is the
Baader-yellow soft pouch with integrated belt strap – which fastens onto
many tripod legs just as well, to serve as a bin for all dustcaps that
may go astray otherwise.
usual with Baader eyepieces, the Mark IV offers an M43 photo/video
thread on top of the eyepiece, to allow attachment of any desired DSLR
or T-2 accessory for mounting a video-camera by means of the optional
M43/T-2 adapter ring Baader Part #2958080.
Unchanged is the optical quality, 68° field of view at highest
magnification, Phantom Group multicoatings, a large adjustable eyecup or
alternatively two M43 rubber eyecups for bino viewing. An optional
spacer ring M43/M43 (Baader Part #2954250 ) with 7,5 mm extension enables the user to increase the height of these eyecups in case of need.
The Mark IV likewise accepts adaptation of the 2.25x Hyperion-Barlow onto the 1¼" nosepiece,
to transform into a high power zoom, featuring the magnification range
of 3.6 to 10.7 mm. The Hyperion Universal Zoom Mark IV is available
individually (#2454826) or as set together with the 2.25x Hyperion
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