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Number in Stock: 48
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Price: $1,295.00
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Denk II Premium Refractor Power x Switch Package
See the Standard and Denk II Power x Switch Package Manual for more details
and pictures.
With Refractors
This Package is
designed to work when refractors with 2
star diagonals are used. This package includes a Denk II Premium
Binoviewer with 2 SCD Holders and a Denkmeier Aluminum Case. A 2
and 1.25
nosepiece are provided and the Dual Arm Refractor Power x Switch that
is also included accepts either nosepiece. A special optical cell
described below is also included that must be threaded into the star
diagonal.
Star Diagonals
Because
users of different Refractors have a variety of 2"
star diagonals, it is very important to select the proper system so
that the peripheral optic that attaches to the diagonal is compatible.
This optic is either called Part SR, or The Low Power S Cell. Both
optical accessories have been fine-tuned to provide maximum
illumination and lowest magnifications as well as satisfactory
telescope focuser positions when the Power x Switch arm positions are
changed.
If
an AP Maxbright® or Tele Vue Everbright® 2"
Star Diagonal is being used, order the package with Part SR. Part SR must always be threaded into the telescope-side
of the star diagonal if focus is to be achieved with the binoviewer and
the Power x Switch. As the illustration shows, SR is inserted into the
telescope-side nosepiece until the 48mm threads of SR meet the female
threads of these diagonals. SR can then be retained as it is threaded
into each of these diagonals.
If
a Denkmeier, William Optics, Vernonscope Diagonal (or other 2" star
diagonal with 48mm/2" filter threads on telescope side) is being used,
order this package with the Low Power S Cell. Denkmeier Diagonals are
ideal for providing a low-end
magnification and maximum illumination when used with this Package.
This is because the Low Power S Cell included can be situated very
close to the star diagonal mirror. As the illustration shows, the optic
is as close as possible to the star diagonal mirror because the
diagonal telescope-side nosepiece can be unthreaded and the Low Power S
Cell can replace it. For added stability, the nosepiece can then be
threaded to the Low Power S Cell. This allows lowest possible
magnifications when the Power X Switch Logo-Side Arm is moved to the
IN
position. Illumination is also maximized and focuser position in all
Power x Switch settings is brought inward. This last effect is
beneficial for balance and allows refractors with less overall focuser
travel to reach focus in all three Power x Switch magnification levels.
Use of the Denkmeier Diagonal also allows the Low Power S Cell to
thread to the end of the Diagonal Nosepiece as an alternative position.
If the nosepiece is not removed from the diagonal and the Low Power S
Cell is threaded to the end, magnification increases and focuser
positions of the Power x Switch move outward.
Once
either Part SR or Low Power S has been threaded into the diagonal, the
binoviewer may be front-loaded into the eyepiece receptacle of the
diagonal. The Power x Switch will now provide 3 instant magnifications
with a single pair of eyepieces; 1.4X, 2.25X and 3.5X.
Coronado Filter
An
additional 1.25
accessory for the Coronado BF Filter Diagonals is needed if this system
is to be brought to focus in Solarmax Telescopes®, or refractors
equipped with Solarmax Filters. This optional cell is called the #150
1.25" OCS Cell for Coronado and it threads into the filter threads on
the telescope-end
of the 1.25"
Coronado Blocking Filter star diagonal. This cell must remain in place
for the binoviewer and Power x Switch to function. When using a
Solarmax90 Telescope®, the 1.25"
Refractor OCS Cell is unnecessary because that telescope has a special
shortened tube designed to allow the Denkmeier Binoviewer to reach
focus (see S&T Magazine Maxscope 90 Hot Product description in Jan
2004 issue).
With SCTs
This
package will work very well with F/10 SCTs and the Power x Switch will
function identically to that included in the Denk II SCT Power x Switch
Package. The main difference between the Denk II Premium Refractor and
SCT Packages is that the Refractor version includes either SR or Low
Power S while the SCT version includes a special 3X Multiplier Cell.
When an SCT is used, there is no need to thread an optical cell into
the telescope-side of the star diagonal. Only the binoviewer with the
Power x Switch is loaded into the star diagonal. This Refractor Package
version will function in an F/10 SCT and provide .66X, 1.15X and 2X
magnifications with a single pair of eyepieces.
With Maks,Classical Cassegrains, Mewlons, Tec Maks
With
any telescope that uses a star diagonal but cannot provide the back
focus necessary for the binoviewer to reach focus, the system is
essentially used in the same way as it is with a refractor. Scopes like
Takahashi Mewlons®, TEC Maksutovs®, Classical Cassagrains, and Tal
Klestovs require the system to be used as if these scopes were
refractors. Just follow the Refractor Usage instructions and thread the 2"
Part SR or 2" Low Power S Cell into the 2"
Diagonal on the telescope-side. If a 1.25"
star diagonal is being used, remember that the optional 1.25"
#150 OCS Cell Code must be installed in the star
diagonal at all times.
Maksutovs
When
using telescopes like Questars®, Meade ETX90 and 125s®, Meade
Maksutovs, Orion® Maks, Intes Micros® and some others, only the
binoviewer and Power x Switch are necessary in either a 1.25"
or 2"
star diagonal. Focal reduction is possible using the Power x Switch in
these telescopes and due to the long focal length and small relative
aperture inherent to many of these Maksutov telescopes, reduction may
be very desirable. Our Patent Pending Power x Switch contains the
Star*Sweeper" and taking advantage of this feature will no doubt prove
attractive to you. With the Low Power (Logo-Side) Power x Switch Arm in
the
"OUT"
position, normal magnifications will result. Moving the Logo-Side Power
x Switch Arm to
"IN"
creates focal reduction. Moving in the opposite arm creates 2X.
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