CELESTRON UpClose G2 10×50 Porro Binoculars Instruction Manual
- October 30, 2023
- Celestron
Table of Contents
CELESTRON UpClose G2 10×50 Porro Binoculars
Product Information
The product is a binocular that is available in two types: Roof Prism Binocular and Porro Prism Binocular. Both types of binoculars have features such as Rubber Eyecup, Eyepiece, IPD Scale, Diopter Adjustment, Focuser, and Objective Lens. The Roof Prism Binocular has an additional feature of Zoom Lever (for Zoom Models) and Tripod Adapter Thread. The Porro Prism Binocular has an additional feature of Ichelle de Distance Interpupillaire.
Product Usage Instructions
- To use the binoculars, first adjust the IPD Scale to match the distance between your eyes.
- Adjust the Diopter Adjustment to suit your eyesight by rotating the Diopter Adjustment knob.
- Use the Zoom Lever (for Zoom Models) to adjust the magnification of the Roof Prism Binocular.
- Use the Focuser to adjust the focus of the binoculars until the object you are viewing is clear.
- For the Porro Prism Binocular, use Ichelle de Distance Interpupillaire to adjust the distance between the eyepieces.
- Attach the binoculars to a tripod using the Tripod Adapter Thread (for Roof Prism Binocular) for stable viewing.
- After usage, keep the binoculars in a safe and dry place to prevent damage.
Thank you for purchasing Celestron binoculars and we hope
you will have many years of pleasure with them. To maximize your
enjoyment of the binoculars, please read these instructions on
use and care before using them.
1. Adjusting the Interpupillary Distance (IPD) Since the distance between
the eyes (specifically, the distance between the centers of
the pupils) varies among individuals, the two eyepieces of the
binoculars must be correctly aligned (adjusted). This is called
adjusting the interpupillary distance. To adjust this distance,
lift the binoculars up to your eyes (using both hands) and look
through them at an object in the distance. Move the two halves
of the binoculars about the hinge until you see one clear circle
of image through both eyes.
Adjusting Focus
Since most people have a variance of vision from their left eye to their right
eye, you must adjust the focusing system. Use the following steps to achieve
focus: (1) Close your right eye and look through the left side of the
binoculars with your left eye at the subject matter. Rotate the center
focusing wheel until the image appears in sharp focus; (2) Close your left eye
and look through the right eyepiece (called the diopter). Rotate the right
eyepiece until the image appears in sharp focus; (3) Now look through both
eyepieces with both eyes open. Since you’ve already adjusted the right
eyepiece, use only the center focusing wheel to refocus on a new object at a
different distance.
Note: If your binocular has a diopter indicator, please note the setting
for later use for faster focus adjustment.
For Zoom Binocular models
to increase or decrease power, move the zoom lever. To adjust focus you first zoom the binoculars to the highest power and then adjust the focusing system as above. Then, when zooming in and out your binoculars will be in focus.
Hint : Eyeglasses worn for nearsightedness should be worn when using binoculars as you may not be able to reach a sharp focus at infinity without them.
Set the Rubber Eyecups
Leave the Rubber Eyecups up if you do not wear eyeglasses but fold them down if you do wear eyeglasses to obtain the maximum field of view. When done observing, fold the eyecups up for storage.
Tripod Adaptability
Porro Prism binoculars feature a built-in tripod adapter fitting. On these models, a threaded screw hole is underneath a cap. To attach a binocular tripod adapter, remove the cap and then thread the screw from the binocular tripod adapter into the threaded screw hole. The other end of the binocular tripod adapter attaches to a photographic tripod. Mounting binoculars this way allows for added stability and comfort especially when viewing at high powers.
5. Care and Cleaning
Binoculars do not need routine maintenance other than making sure that the
objective lenses and eyepieces are kept clean. If repairs become necessary,
they should be serviced by the manufacturer or a qualified binocular repair
company. Collimation (optical alignment) is the biggest concern with
binoculars. If your binoculars are roughly handled or dropped, there is a good
chance that the collimation will be out and they should be serviced. Dirty
objectives and/or eyepieces mean less light transmission and loss of
brightness as well as unsharp images. Keep your optics clean ! When not using
your binoculars store them in the case provided. Avoid touching the glass
surfaces but if fingerprints (which contain mild acid) get on them, they
should be cleaned as soon as possible to
avoid damaging the coatings. To clean the optical surfaces, we recommend a
lens/optics cleaning kit available at most photo or optical shops and follow
the instructions provided closely. If you have a lot of dust or dirt
accumulated, brush it off gently with a camel’s hair brush and/or utilize a
can of pressurized air before using the cleaning kit. Alternately, you could
use the Celestron LensPen (# 93575) made especially for cleaning binoculars.
Never attempt to clean your binoculars internally or try to take them apart!
Caution! Viewing the sun may cause permanent eye damage. Do not view the sun with your binoculars or with the naked eye.
Problems or Repair
If warranty problems arise or repairs are necessary, contact the Celestron technical support department if you live in the U.S.A. or Canada. If you live elsewhere, please contact the Celestron dealer you purchased the binoculars from or the Celestron distributor in your country (listings on the Celestron website).
Warranty
Your binocular has the Limited Lifetime Warranty for U.S.A. and Canadian customers. For complete details of eligibility and for warranty information on customers in other countries visit the Celestron website: www.celestron.com This product is designed and intended for use by those 14 years of age and older. Product design and specifications are subject to change without prior notification.