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Generally, for use on board we always recommend the Fujinon 7x50 FMTRC-SX-2 binocular because the 7-times magnification can still be hand held without too much shaking and the the 50 mm objective lenses mean that even under low-light or adverse conditions, the image will still be nice and bright. However, 7x50 does not say anything about the qualtiy of the optics of a binocular. If you compare several 7x50 models, differences will be visible in terms of resolution, i.e. the maximum sharpness and clarity of the image and in terms of light transmission, i.e. brightness of the imagee different quality levels available.
Features - Built-in compass - Field-flattener lens - by adding a field flattening lens to the eyepiece design, the sharpness on the edges of the image is increased to the maximum. - Suitable for the navigation - 100 % waterproof - Outstanding twilight characteristics - Rubber armoring - Warranty: 10 years
Specifications - Optical system: Porro prism - Objective lens diameter: 50 mm - Magnification: 7x - Field of view at 1000 m: 131 m - Luminous intensity: 50.4 - Twilight factor: 18.7 - Exit pupil: 7.1 mm - Eye relief: 23 mm - Weight: 1.056 kg
Included Accessories - Neck strap - Soft Case - Objective and eyepiece lens cup
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