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A zooming compact unit that's a good choice for hikers and outdoors enthusiasts, the Olympus 10-30x25 Tracker Zoom PC I Binocular incorporates fully multicoated optics into a 'reverse' porro prism design designed for daylight use. It is ergonomically contoured, with a rubber armored housing and turning-type eyecups. Adjust from 10 to 30x magnification with a simple lever on the right of the unit.
| Prism Type | Porro |
| Magnification | 10x |
| Objective Lens Diameter | 25 mm |
| Angle of View |
10x: 3.2° 30x: 1.9° |
| Field-of-View |
10x: 168' @ 1000 yd / 55.78 m @ 1000 m 30x: 100' @ 1000 yd / 33.20 m @ 1000 m |
| Minimum Focus Distance | 16.40' / 5 m |
| Exit Pupil Diameter |
10x: 2.5 mm 30x: 0.8 mm |
| Eye Relief |
10x: 15 mm 30x: 8 mm |
| Interpupillary Adjustment | 58 - 70 mm / 2.28 - 2.76" |
| Dioptric Correction | ±2 |
| Focus Type | Center |
| Tripod Mount | None |
| Dimensions | 4.37 x 1.89 x 4.49" / 11.10 x 4.80 x 11.40 cm |
| Weight | 11.11 oz / 315 g |
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Comments about Olympus 10-30x25 Tracker Zoom PC I Binocular:
This binos are an exciting toy, hence the name OlysTrackers They are stylish and rugged, light in weight and fun to use. Optics are mediocre with poor eye relief and outrageous color aberration at all magnifications. I bought them to help me find the subject when I'm using my serious spotting scope. I would recommend them only for brief observation as described above.
Expertise: Avid nature observer.
Problems Encountered: Poor eye relief and color rendition.
Previous Equivalent Item Owned: Bushnell - Bausch and Lomb - Zeiss
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