Celestron Cometron 12x70 Cometron Binocular Manual - Page 4

Setting the Diopter / Focusing To ensure a crisp, sharp image the focusing system of the binocular must be set to compensate for any differences in your eyesight. This is achieved by setting the diopter (located on the right eyepiece) before use. To set the binocular to your eyesight follow the instructions below. 1. View an object in the distance through the binocular. 2. Cover the right objective lens with your hand or the objective lens cap. 3. Rotate the focus wheel until the image viewed with your left eye is clear and sharp. 4. Cover the left objective lens with your hand or objective lens cap. 5. Viewing the same object, rotate the right eyepiece (the diopter) until the image viewed with your right eye is clear and sharp. 6. Your binocular is now adjusted to your eyes and focusing on any object can now be achieved by simply turning the focus wheel. Tip: Eyeglasses worn for nearsightedness should be worn when using binoculars as you may not be able to obtain focus at infinity without them. Diopter Adjustment Focus Wheel Fig. 3 4 I ENGLISH Eyecup Adjustment The Cometron binoculars feature foldable rubber eyecups to accommodate both eyeglass and non-eyeglass wearers. If you do not wear eyeglasses, leave the rubber eyecups in the up position. If you wear eyeglasses, make sure that the eyecups are folded down to obtain the maximum field of view. When done observing, make sure the rubber eyecups are in the up position for storage. Fig. 4 ENGLISH I 5