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Mid-Priced Binoculars ReviewFor Bird Watcher's Digest, January, 2012by Michael and Diane Porter 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15| 16| 17 | Michael and Diane Porter wrote the following review, which appears in the January, 2012, Bird Watcher's Digest. This is page 6 of the review. Testing diopter adjustments Diopter Adjustment. The diopter setting lets you customize a binocular’s focusing to accommodate any differences between your two eyes. The setting will differ from person to person. You should have to set the diopter only once, unless you lend your binoculars to someone else, who changes your setting.
The worst diopter mechanisms have neither lock nor scale and are located where they are likely to get changed unintentionally. NEXT: Testing Resolution 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15| 16| 17 | |
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Birdwatching Dot ComPlease call us toll free 800-779-7256 for advice on choosing binoculars or other birding products. All text is copyright Birdwatching Dot Com unless otherwise specified. |
The best diopter mechanisms lock, so that they can’t be changed accidently. And they have an easy-to-read scale, so that you can return to your preferred setting if it does get changed. 