Swarovski Optik STS-65 HD 20-60x65mm Spotting Scope with Eyepiece (Straight Viewing)
- Fishermans Marine$2,549Buy
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From Fishermans Marine
The objective lens diameter specifies how much light can enter the optics. This makes it a key factor in an instrument&&';;s performance for example in twilight. The bigger the objective lens diameter the more light the objective lens can capture. The darker the surroundings the larger the objective lens diameter needs to be. Check the precise product name as the number after the 'x&&';; specifies the objective lens diameter in millimeters. For example a device with the suffix 10x42 has an objective lens with a diameter of 42 mm. Variable magnification makes it possible to adjust the magnification flexibly within a specific range.