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Using the Rubber Eyecups
The zoom eyepiece includes a soft rubber eyecup for eyeglass wearers. Fold
down the rubber eyecups to observe the full field of view when wearing
eyeglasses.
Focusing
To focus slowly rotate the focuser knob until the image in the
eyepiece is clear and sharp. Refocusing is usually required if the
power is changed
Changing the Magnification
Rotate the magnification ring around the zoom eyepiece to change the
power level of the spotting scope. Refocus as needed.
Photography
To use your spotting scope as a telephoto lens, remove the rubber eyecup from the top of the eyepiece.
optional t-ring for your make and model of 35mm camera onto the T-threads located at the top of the eyepiece. Attach
your 35mm camera body to the t-ring. Celestron spotting scopes have fixed apertures and, as a result, fixed f/ratios. To
properly expose your subjects photographically, you need to set your shutter speed accordingly. Most 35mm SLR
cameras offer through-the-lens metering which lets you know if your picture is under or overexposed. Adjustments for
proper exposures are made by changing the shutter speed. Consult your camera manual for specific information on
metering and changing shutter speeds.
35mm Camera
body
Model
52248
Series
Ultima 65
Magnification
18-55x
Aperture (mm)
65
Focal Length (mm)
386
Eyepiece
7-21mm Zoom
Angular Field of
View (FOV°)
1.7° - .73°
Linear FOV
(ft. @ 1000 yd)
89@18x 38@55x
Eye Relief (mm)
18@18x
Near Focus
20ft@18x
Coating
Multi-Coated
Length (in)
13
Instrument
Weight (oz)
37
, 2
2835 Columbia Street, Torrance, CA 90503 • Phone (310) 328-9560 • Fax (310) 212-5835
All manuals and user guides at all-guides.com
T-Ring
Eyepiece with rubber
)
(Optional
SPECIFICATIONS
52250
Ultima 80
20-60x
80
480
8-24mm Zoom
2° - 1°
105@20x
53@60x
18@20x
27ft@20x
Multi-Coated
16
57
Spotting
Scope
eyecup removed
52251
52252
Ultima 80ED
Ultima 100
20-60x
22-66x
80
100
480
540
8-24mm Zoom
8-24mm Zoom
2° - 1°
1.8° - 1°
105@20x
53@60x
95@22x 53@66x
18@20x
18@22x
27ft@20x
33ft@23x
Multi-Coated
Multi-Coated
16
19
57
72
Thread an
52253
Ultima 100ED
22-66x
100
540
8-24mm Zoom
1.8° - 1°
95@22x 53@66x
18@22x
33ft@23x
Multi-Coated
19
72
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