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This Page Updated 21st October 2016
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TAKAHASHI
FSQ-85EDX
Flatfield
Super Quadruplet |
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The Takahashi name has long been regarded as one of
the finest refractors available for film and CCD imaging.
Wide field, large image circle, excellent color correction
and a flat field were just some of the notable points of
these fine instruments.
Now, enter the Takahashi FSQ85EDX Flatfield Super Quadruplet
Telescope...
The "Baby Q" Takahashi FSQ85EDX telescope is the newest and
smallest member of the FSQ Series of flat field astrographs.
Designed from the ground up for digital imaging, the Baby
“Q” is the go anywhere, portable astrograph. Easily airline
transportable at 322mm (12.7”) collapsed, the FSQ-85EDX will
fit under an airline seat or fit easily into an overhead
compartment for ultimate portability. Take the Takahashi
Baby Q to Chile to image the Magellanic Clouds or to a
remote site anywhere in the world. At just a little over 3
kilograms, a small, high quality mount turns it into a
traveling astrophotographer's dream.
Let's start with a significantly longer backfocus at more
than 200mm to accommodate most medium format CCD systems.
Many CCD imagers have additional equipment in the light path
which takes up precious focus travel. Thanks to a new
design, the FSQ85EDX provides the additional backfocus to
accommodate most medium CCD equipment, your digitial SLR and
even allows the use of binoviewers!
The Takahashi FSQ-85EDX telescope comes equipped with a
newly designed heavy-duty 78mm focuser with a built-in
camera angle adjuster. Designed for all applications in
mind, the focuser will lift your equipment, and keep it
there without slipping. Do you need to make adjustments? No
problem. Takahashi has thought of that, too... And that's
why they've designed the adjuster to rotate a full 360°
without loss of critical focus. Check out the Takahashi
FSQ85EDX System Chart for a quick tutorial on connecting
accessories to the Baby Q.
But, improvements haven't stopped there. Takahashi has
redesigned the optical system in the Takahashi FSQ85EDX F5.3
Astrograph Telescope to a modified four element double ED
Petzval system . By adding a second doublet inside the tube,
the optical wavefront can be optimized to remove any
astigmatism - this in turn acts as a field flattener. The
Takahashi FSQ85EDX F5.3 Astrograph Telescope optical system
is incredible for imaging - providing wide, flat fields,
high contrast and no lateral color, yet it is also capable
of outstanding visual work delivering a whalloping 7.0° of
sky in a compact package. Color correction from the near UV
to the near IR insures tight stellar images across the
entire color range. Use the optional Takahashi Extender-ED
focal reducer for imaging applications to or to increase
focal length for high power viewing. Now, that's a stellar
image....
Do you need more? Then think on this... Another improvement
on the new Takahashi FSQ85EDX is the enhanced portability
from the new, retractable, self-storing dew shield design.
The Takahashi FSQ85EDX is extremely airline portable at only
322mm long when the dew shield is collapsed and stays in a
tidy package. Inside the all aluminum tube, you'll find
knife-edge baffles block off axis light and provide maximum
contrast. Outside you'll find the perfect fit and finish
with its rich white color and ebony and scarlet trim. The
focuser and the aluminum castings will continue to be made
one at a time for consistent, optimal quality. That's a
Takahashi guarantee. |
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FSQ-85EDX Technical Specifications |
Optical System |
Modified Petzval Quadruplet |
Effective Aperture |
85mm |
Effective Focal Ratio |
f/5.3 |
Focal Length |
450mm |
Image Circle |
Ø
44mm |
Resolving Power |
1.35" |
Limiting Magnitude |
11.4mag |
Light Gathering Power |
147x |
Diameter of Main Tube |
95mm |
Total Length of Main Tube |
615mm (Dew Shield Extended) |
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525mm (Dew Shield Retracted) |
Weight of Main Tube Assembly |
3.1kg |
Finder Scope |
6x30 8° |
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with
Extender-ED 1.5X |
Effective Focal
Length |
680mm |
Effective Focal Ratio |
f/8 |
Image Circle |
Ø
44mm |
Photographic Field |
3.7° |
Back Focus |
154.8mm |
Metal Back |
117.5mm |
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with
Reducer-QE 0.73X |
Effective Focal Length |
372mm |
Effective Focal Ration |
f/3.8 |
Image Circle |
Ø
44mm |
Photographic Field |
7.7° |
Back Focus |
82.0mm |
Metal Back |
72.2mm |
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TAKAHASHI FSQ-85EDX Instruction Manual -
CLICK HERE
TO VIEW OR DOWNLOAD |
TAKAHASHI FSQ-85EDX Photo/Visual System Chart -
CLICK HERE
TO VIEW OR DOWNLOAD |
TAKAHASHI FSQ-85EDX Reducer QE
0.73 System Chart -
CLICK
HERE TO VIEW OR DOWNLOAD |
TAKAHASHI FSQ-85EDX Extender
ED 1.5x System Chart -
CLICK HERE
TO VIEW OR DOWNLOAD |
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The above images and information and gathered from
various online sources
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