Canon 10 x 30 IS Technology Guide - Page 3

Eye Spacing/Diopter Adustment/ Rubber Eyepieces How to Use the Binoculars 1) Look through the binoculars with both eyes, and adjust them for the spacing of your own eyes (with the IS series, use the eyepiece barrels). The instrument is correctly adjusted Remembering the readings of once both views merge into one circle. the diopters will be convenient to adjust the binoculars after someone else has used them. Next, adjust the diopter adjustment rings to your eyesight. This is an important step, as each person has different eyesight. 2) With your right eye closed, look through the left eyepiece with your left eye. Using the focusing ring, adjust the focus on an object. 3) Now, close your left eye and look through the right eyepiece. If the object is in focus, the diopter was adjusted correctly. Otherwise, use the right diopter adjustment ring to readjust the focusing. 4) By adjusting the focusing ring each time you look at an object, the diopters will also automatically focus. Please note that eye spacing and diopter adjustment is different for each person. Another person would have to adjust the eye spacing and diopters again. • For eyeglass wearers If you look through the binoculars while wearing eyeglasses, your eyes will be further away from the eyepieces, and scenes will gradually shade off at the edges. To prevent this, use the foldaway rubber eyepiece rings if available. With the IS series, you can simply lengthen the eye cups by squeezing the edges of the eye cups. 3