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Photo & Visual
Accessories
Extra Counterweights
Counterweight,
Extra (#11 for CG-5 Mount) (item no. 94186)
11 lb. counterweight for use with CG-5 mounts.
Counterweight,
Extra (#25 for CGE Mount) (item no. 91525-2)
25 lb. counterweight for use with CGE mounts.
Using
accessories such as cameras, Lens Shades, Tele-Extenders and the 2" Diagonal
will affect the balance of your Celestron Schmidt-Cassegrain telescope. Counterweights
restore proper balance, increasing ease in handling and improved tracking
accuracy.
You
don’t need perfect balance to operate your telescope. In fact, it’s
not always possible to achieve perfect balance with fixed-position weights.
All you need to do is reduce, or eliminate, swing when R.A. and DEC locks
are released. Celestron counterweights help you achieve the desired balance
and stability with ease.
Counterweight Bar Assembly
Counterweight
Bar Assembly - 8 in (item no. 94191)
It attaches to both the front and rear cells of an 8" SCT.
Counterweight
Bar Assembly - 11 in (item no. 94192)
It attaches to both the front and rear cells of an 11" SCT.
The
Counterweight Bar Assembly is a metal rail that runs the length of the telescope
tube. It attaches to both the front and rear cells of Schmidt-Cassegrain telescopes.
Once
the Bar Assembly is in place, counterweights can be attached to it and moved
along its length, as well as perpendicular to it, for better dynamic balancing.
Each Counterweight Bar Assembly comes with mounting hardware and one 2.5 lb.
weight.
T-Adapters
A
T-Adapter allows you to attach your 35mm SLR camera to the prime focus of
your telescope or spotting scope. This arrangement is used for terrestrial
photography and short exposure lunar and planetary photography. It can also
be used for long exposure deep-sky photography when using a separate guidescope.
Both
a T-Adapter and T-Ring are required to mount a 35mm SLR camera to your instrument.
1.25" UNIVERSAL
T-ADAPTERS:
T-Adapter, Universal - 1.25 in
Universal
1¼" T-Adapter fits (drop in style) any type of telescope
that uses a 1¼" focuser or visual back. |
(item no. 93625) |
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T-Adapter with Barlow Universal - 1.25 in
Universal
1¼" T-Adapter. Similar to #93625 but in addition
includes an integral 2x Barlow lens which can be used visually
or photographically. |
(item no. 93640) |
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T-ADAPTERS
FOR TELESCOPES & SPOTTING SCOPES:
T-Adapter,
(C5, 6, 8, 9-1/4, 11, 14)
For
all Schmidt-Cassegrains. It threads onto the rear cell. |
(item no. 93633-A) |
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T-Adapter,
NexStar 4, C90 Mak & C130 Mak
For
NexStar 4 and for all C90 Spotting Scopes. |
(item no. 93635-A) |
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T-Adapter, 52200 Spotter
For Pro Zoom Spotters. |
(item no. 93628) |
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Onyx T-Adapter
For Onyx 80 EDF telescope. |
(item no. 93642) |
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Tele-Extender – Deluxe
 The
Deluxe Tele-Extender for Schmidt-Cassegrain telescopes is a
hollow tube that allows you to attach a camera to your telescope,
with an eyepiece installed. By using the Deluxe Tele-Extender
in combination with an eyepiece, you can increase your instrument’s
effective focal length to well over 10,000mm! And this corresponds
with a matching increase in image size. This technique is known
as eyepiece projection photography. The following formula can
be used to determine approximate effective focal length:
EFL
= Telescope focal length/Eyepiece focal length x DF (the distance
from the center of the eyepiece to the film).
The
Deluxe Tele-Extender is used for high-power lunar, solar and
planetary photography as well as for extreme terrestrial photography.
It fits over the telescope’s eyepiece (even large eyepieces
such as those in Celestron’s Ultima line), and connects
to the visual back of the telescope. Optional counterweights
will be necessary to properly balance the telescope when using
the Tele-Extender.
To
use the Deluxe Tele-Extender, remove the diagonal from your
telescope and insert an eyepiece directly into the visual back.
Place the Tele-Extender over both the eyepiece and the visual
back, then attach your 35mm SLR camera to the back of the Tele-Extender,
using a T-Ring. The Tele-Extender’s built-in safety device
will help prevent your eyepiece from becoming accidentally
dislodged.
There
are a few things to keep in mind when using this accessory.
First, the image you’ll see through your camera’s
viewfinder will be upside-down. Secondly, due to the extremely
high magnifying effect afforded by this accessory, extra care
to prevent camera and telescope vibration, accurate polar alignment
and use under good seeing conditions will all assist you in
capturing high quality images. |
 Reducer Lens - for NexImage
Increase
your field of view by over two times for wide field lunar and filtered solar
imaging.
The
NexImage Reducer Lens replaces the 1.25" barrel and threads directly
into the NexImage housing.
 Reducer - Corrector
This
combination focal reducer and field corrector lens accessory works with all
Celestron 5", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain
telescopes. This clever accessory makes it possible to have a dual focal ratio
instrument, without sacrificing image quality. The Reducer/Corrector is f/6.3
for C5, C8, C9¼ and C11 telescopes and f/7 for the C14 telescope.
It
offers wide fields of view with any Schmidt-Cassegrain telescope. Used for
astrophotography, it reduces exposure time by a factor of 3.
Celestron
doesn’t offer a f/6.3 Schmidt-Cassegrain telescope, because the design
is impractical, with a large central obstruction, and resulting loss in contrast.
This, added to the inability to utilize longer focal ratios for certain objects,
led Celestron to design the four-element, fully multicoated f/6.3 Reducer/Corrector.
Results are amazing both visually and photographically.
 Digital Camera Adapter - Universal
Universal
mounting platform that allows you to do afocal photography (photography through
the eyepiece of a telescope) using a 1-1/4" or 2" eyepiece.
NexImage
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FEATURES |
 General
- View
and capture live video on your computer screen
- Software
automatically filters out video frames most affected by
poor atmospheric "seeing" leaving only the sharpest,
clearest frames to be stacked and aligned into one high
quality image
- Easy
to follow quick start instructions and tutorial with sample
video file that will have you producing quality images
your first night out
- Camera
control software allows you to manually change the gain,
contrast, exposure time, frame rate and color saturation
using your PC
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DESCRIPTION |
Astro
Imaging Made Easy.
Whether
you currently own a telescope or are contemplating a purchase,
our new NexImage Solar System Imaging Kit is a MUST HAVE!
NexImage
is a complete CCD solar system imager capable of producing
high quality planetary images with greater light sensitivity
and color fidelity than comparable CMOS imagers. Combined with
the NexImage software package, NexImage can bring out tremendous
detail and reveal a final image that will rival those taken
with astronomical CCD cameras costing thousands of dollars
more.
Compatibility – 1.25" adapter
barrel makes NexImage compatible with most any telescope
Versatility – 1.25” adapter
is threaded for standard eyepiece filters and can be removed
and replaced with optional focal reducer lens
Recommended
Minimum System Requirements
- PC
running Windows 98SE - XP - Vista (visit Celestron web
site for Vista Drivers)
- 333Mhz
Pentium II or better
- 128
MB of RAM
- 40
MB of hard drive space
- Screen
resolution of 1024x768 or higher
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SPECIFICATIONS |
| CHIP |
1/4" format,
HAD, color CCD chip |
| CAMERA
RESOLUTION |
VGA
640x480 |
| SIZE |
3.6mm
x 2.7 (4.5mm diagonal) |
| PIXEL
SIZE |
5.6
micron square |
| SENSITIVITY |
<1
lux |
| USB
CABLE |
7ft |
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 Piggyback Mount - C8, 9-1/4, 11 & 14
The
Celestron Piggyback Mount is a great accessory for all observers interested
in deep-sky astrophotography. This mount allows you to attach your camera,
with its lens, to the top of the telescope, making it possible to shoot with
a normal or wide angle lens while guiding through the telescope.
The
Piggyback adapter mounts to the rear cell of the C8, C9.25, C11 and C14 telescopes.
Piggyback
Mount - for 5, 6, & 8 SE
 The Celestron Piggyback Mount is a great accessory for
all observers interested in deep-sky astrophotography. This
mount allows you to attach your camera, with its lens, to the
top of the telescope. Its unique design also allows you to
fit your NexStar telescope's Star Pointer on top of the Piggyback
so that you can accurately navigate your telescope and conduct
astrophotography at the same time.
The
Piggyback adapter mounts to the rear cell of the 5, 6, and
8 SE NexStar telescopes. |
 Radial Guider
Specifically
for use in prime focus, deep-sky imaging or astrophotography with Schmidt-Cassegrain
telescopes, the Radial Guider is compact and sleek in design. This accessory
makes it possible to simultaneously photograph and guide through the optical
tube assembly of your telescope. The Radial Guider also eliminates the problem
of differential flexure, because you’re both guiding and photographing
through the telescope.
The
Radial Guider is compatible with Celestron’s C5, C6, C8, C9¼,
C11 and C14 telescopes and comes with a unique prism angle adjustment screw.
It must be used with a guiding eyepiece, camera T-Ring and drive corrector
(dual axis preferred). Primarily for use with catadioptric telescopes, but
also works on refractor telescopes having adequate back focus.
This
guider is a tremendous improvement over conventional off-axis guiders. Not
only is the angle of the prism tunable, but it also maintains a fixed rigid
camera orientation while still offering users the freedom to move the guiding
eyepiece radially about 135°.
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