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6
4. Tighten each screw a quarter turn so the finder does not come loose.
Using Your Spotting Scope Visually
With the standard accessories attached, you are ready for your first look.
1. Point the front end of the spotting scope at a distant object.
2. Locate the object in the finderscope.
3. Look through the spotting scope and turn the focus knobs until objects come to a sharp focus.
4.
Center your target using the slow motion controls of the tripod.
Repeat this process for each object you observe.
Focusing
For objects closer than the one you are currently observing, turn the focus knobs towards the eyepiece
and for objects further away, turn the focus knobs away from the eyepiece.
Changing Eyepieces
You can vary the power of your spotting scope simply by changing eyepieces. To change eyepieces:
1. Loosen the thumbscrew on the 45° Erect Image Diagonal.
2. Remove the eyepiece currently in the spotting scope.
3. Insert a new eyepiece into the 45° Erect Image Diagonal.
4. Tighten the thumbscrew on the 45° Erect Image Diagonal to hold the eyepiece in place.
With the new eyepiece in place you will need to refocus your spotting scope (unless the eyepieces
have the same focus point, something known as being parfocal). Once again, turn the focusing knob
until the image is sharp.
Celestron offers a wide variety of eyepieces as optional accessories. To determine the magnification
of each eyepiece used with your spotting scope, see the section “Calculating Magnification” at the
end of this manual.
In addition to eyepieces, you may also use a Barlow lens to increase magnification. A Barlow lens is
a negative lens that increases the focal length of a spotting scope. Used with an eyepiece it increases
the magnification. The amount of the increase depends on the lens itself and its position in the optical
system. Celestron offers Barlow lenses for 1-1/4” eyepieces.
Using Your Spotting Scope Photographically
Your Spotting Scope can be used photographically as well as visually. To turn your spotting scope into a
telephoto lens all you need is a T-Ring for your particular camera make (i.e., Nikon, Minolta, Pentax, etc.). The
T-Ring replaces the 35mm SLR camera’s normal lens.