7101 Diopter Tester
SKU
7101
The 7101 has a range of 9 diopters (from +4 to ˆ’5). Its scale is calibrated in major numbered divisions of whole diopters, with the smallest divisions equal to 0.2 diopters. Estimates to 0.1 diopter are easily and accurately made.
Aperture Diameter mm | 13 |
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Diameter in | 1-3/8" |
Diameter mm | 34.9 mm |
Diameter of Exit Pupil | 4-1/4 mm |
Field of View | 12°, 40? (12.2 m) |
Graduations | Smallest division 0.2 diopters, with whole diopters numbered |
Length in | 3.5 |
Length Accuracy | 3-1/2” (89 mm) |
Magnification | 3x |
Min. Height | 8" |
Weight, Product (Approx.) lb | 1.5 |
Weight, Product (Approx.) kg | 0.7 |
Zero Setting | At infinity (for perfectly collimated light) |