Important Information About Your Edge Hd 9.25" Optical Tube Assembly - Celestron NexStar EVOLUTION 9.25 EDGE HD Guide De Démarrage Rapide

2 . Open SkyPortal, tap the scope icon, and tap "Connect
and Align" . Follow the on-screen prompts and StarSense
will automatically align your telescope .
StarSense is aligned, but there's just one first-time-
only step before you're ready to go: Calibrate the
camera to the telescope.
3 . After the StarSense alignment is complete, select a
bright star in SkyPortal by tapping it on the screen, then
tap "GoTo" . If the star is not in the eyepiece's field of
view, start by centering it in the StarPointer, then center
it in the eyepiece .
With the star centered in the eyepiece, tap Align, then
tap Calibrate . Once the camera is calibrated, follow the
prompts to start a new StarSense Auto alignment . You
only need to do this the first time you are using
StarSense with the telescope in SkyPortal .
Installing & Using The Barlow Lens
Your telescope also comes with a 2x Barlow lens which
doubles the magnifying power of each eyepiece . To use the
Barlow lens, insert the Barlow between the diagonal and
the eyepiece .
Note: Start by using a low power eyepiece as it will be
easier to focus.
Installing The Moon Filter
To use the moon filter, simply thread the filter to the chrome
barrel of the eyepiece .
Aligned and Ready to Observe!
Tap objects on your screen and select GoTo, or search for
a specific object in the search field . To start out, you can
choose from "Tonight's Best" list in SkyPortal under the
Search menu .
Important Information About
Your Edge HD 9.25" Optical Tube
Assembly
Your EdgeHD is optimized for both visual astronomy and
astrophotography, delivering images free of coma or field
curvature across a large image circle . Start by using the
supplied 1 .25" visual back, Star Diagonal, and eyepieces
to familiarize yourself with the telescope .
Primary Mirror Clutch Knobs
(for Astrophotography Only)
These clutch knobs (shown in overview image) hold the
mirror in place to prevent movement during a long exposure
astrophoto . Keep these loosened unless you are using a
camera for long exposures .
When using a camera, focus the telescope first, then
tighten the knobs .
Warning: Do not turn the focus knob with the
clutch knobs tightened. Anytime you refocus the
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telescope, loosen the clutch knobs.
Optimum Camera Distance
The 9 .25" EdgeHD was designed to work with your camera
at a specific distance from the end of the threads (of the
adapter plate shown in the diagram) on the back of the
scope to the camera's sensor .
EdgeHD 9.25" - Optimum Back Focus Distance
Remove Visual Back
Camera Adapter
or T-Adapter
Adapter
Plate
If you are using a DSLR, the distance is already set
correctly when you use these standard adapters available
from Celestron:
T-ring for the make and model of your camera
T-adapter for 9 .25" EdgeHD
If you are using an astronomical CCD camera, you must
determine the necessary adapter length to the camera
body .
The total distance from the end of the adapter plate
threads to the camera sensor should be 146mm.
This is the total required backfocus distance . Your camera
body to the imaging sensor will take up some of this
backfocus distance . Your camera manufacturer will usually
specify the camera backfocus distance . For example, if your
camera's backfocus distance is 55mm, then you will need
91mm of spacing to reach 146mm .
Fastar Compatibility and Imaging at f/2
Secondary
Mirror
Secondary
Mirror
Retaining
Ring
Secondary Mirror
Mount Plate
Camera
Focal
Plane
Corrector Plate