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INSTRUCTION MANUAL

IN 611 Rev. A 01/18

Orion

®

 GrandView

 65mm and 80mm ED Spotting Scopes

#51852  65mm, #51853  80mm

Congratulations on your purchase of the GrandView ED Spotting 

Scope with interchangeable 1.25" eyepieces. The ED glass in the 

objective lens means you’ll enjoy images with far less color distortion 

than those seen in a standard scope. Your spotting scope is a high-

quality optical instrument for viewing birds, wildlife, sports events, or 

anything else you want to see more closely. It will provide many years 

of enjoyable viewing. Before using your spotting scope, we recom-

mend that you read through the following instructions.

Attaching the eyepieces

Your spotting scope is capable of accepting most all 1.25" standard 

astronomical eyepieces.  The GrandView ED includes a 1.25" zoom 

eyepiece that should fit most needs, but optional non zoom eyepieces 

are available through Orion should you desire them.  To attach your 

eyepieces, loosen the large knurled collar on the eyepiece end of the 

spotting scope by rotating it counter-clockwise.  Insert the eyepiece 

until it is fully seated, and then tighten down the collar by rotating 

clockwise until snug.  The GrandView utilizes a compression style 

locking mechanism to clamp the eyepiece by way of this collar, in 

order to hold it securely and also not scratch the side of the eyepiece 

barrel.  To remove the eyepiece, simply loosen the collar enough to 

allow the eyepiece to slide out by hand.

Calculating the magnification

If you decide to use your own 1.25" eyepiece in the GrandView ED, 

you can determine the power using the following formula by plugging 

in the focal length of the GrandView along with the focal length of the 

eyepiece you want to use:

Spotting Scope F.L. ÷ Eyepiece F.L. = Magnification

The GrandView 65mm has a focal length of 345.8mm, and the 80mm 

is 432mm.  So for example, the GrandView 80mm, used in combina-

tion with a 25mm eyepiece, yields a power of:

432mm ÷ 25mm = 17x

We don’t recommend going over a magnification of 60x during the 

day, as atmospheric disturbances due to the sun heating the atmo-

sphere above hot surfaces such as roads, sidewalks and buildings, 

can severely distort the image, and higher magnification will just 

magnify this distortion.

Focusing

The GrandView ED spotting scopes are equipped with a dual speed 

focusing knob, capable of 1:1 gross focus, and 9:1 fine focus. Point 

the spotting scope so that it is aiming in the general direction of an 

object at least 12' away (65mm) or 18' away (80mm). Turn the larger 

focus knob (1:1 gross focus) with your fingers until the object comes 

into focus. Go a little bit beyond sharp focus until the image just starts 

to blur again, then reverse the rotation of the knob, just to make sure 

you’ve hit the exact focus point. You can switch to the smaller focus 

knob (9:1 fine focus) in order to more finely control the focus shift 

and hit the exact focus of your subject. When you zoom in and out 

using the included zoom eyepiece, you may have to slightly adjust 

the focus position.

Using the included zoom eyepiece

The magnification is adjusted to the desired level by rotating the 

middle section of the zoom eyepiece body. The arrow indicator and 

magnification scale shows the magnification setting based on the 

objective size of your GrandView (65mm or 80mm). Changing the 

magnification may also require a slight refocusing of the spotting 

scope to achieve the sharpest image. For general use, it’s a good 

idea to start viewing at the lowest magnification until you’ve acquired 

your viewing target. Then you can zoom in to a higher magnification 

to see more detail. Note that as magnification increases, the images 

will not be as bright as they are at lower powers. 

Figure 2. 

Dual speed focus knob

Fine focus 

(9:1)

Gross focus 

(1:1)

Figure 1. 

The eyepiece and locking ring

Eyepiece locking collar

Zoom ring

Eyecup

#51853

#51852

Corporate Offices:

 89 Hangar Way, Watsonville CA 95076 - USA

Toll Free USA & Canada:

 (800) 447-1001 

International:

 +1(831) 763-7000

Customer Support:

 support@telescope.com

Copyright © 2020 Orion Telescopes & Binoculars. All Rights Reserved. No part of this product 

instruction or any of its contents may be reproduced, copied, modified or adapted, without the 

prior written consent of Orion Telescopes & Binoculars.

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