Leupold Cascades 10X42Mm Binocular Advantage Timber 57505 Review

Average Reviews:

(More customer reviews)I gave these to my husband as a gift and he loves them!! The price is about $100 cheaper on Amazon then any other website. A great buy.

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Need a good low-light binocular for when you're bird watching or hunting at dawn or dusk? Turn to the Leupold Green Ring Cascades center-focus binocular, which incorporates phase-coated roof prisms to give you the sharpness, contrast, and color fidelity you demand, even when the light is less than ideal. The Cascades binocular employs 42mm objective lenses with a magnification of 10x, creating a linear field of view of 267 feet @ 1,000 yards. The multicoated lens system, meanwhile, produces high-end brightness, clarity, and contrast as you track your object. And users will love the slim inline design, which makes the binocular easy to grip in all weather conditions, even pouring rain. Other details include a generous 16mm of eye relief, twist-up eyecups, and a close focus distance of 10 feet. Rugged, waterproof, and coated with an Advantage Timber HD camouflage finish, the Cascades binocular carries a limited lifetime warranty.
Specifications
Actual magnification: 10x
Linear field of view: 267 feet @ 1,000 yards
Angular field of view: 5.1 degrees
Objective aperture: 42mm
Twilight factor: 20.5
Exit pupil: 4mm
Eye relief: 16mm
Interpupillary distance: 58 to 72mm
Close focus distance: 10 feet
Length: 5.5 inches
Weight: 23.1 ounces

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Leupold Cascades 10X42Mm Binocular Black 53532 Review

Average Reviews:

(More customer reviews)The binoculars them self are great, very clear, good in low light , nice size. Do not care for the lense covers and would have liked a hard case but over all a great product.

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One of the greatest values in current binoculars, the Leupold Cascades 10 x 42mm binocular offers serious optical performance in a slim, in-line design that's easy to grip in all weather conditions and a pleasure to take into the field. An outstanding low-light performer, the Cascades binocular's multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity. It also features generous eye relief and twist-up eyecups for comfortable extended viewing, even with eyeglasses, and close focus distance of 10 feet. This rugged, waterproof binocular is covered by the Leupold's limited lifetime warranty.
Specifications:
Magnification: 10x
Linear field of view: 267 feet per 1000 yards/89 meters per 1000 meters
Angular field of view: 5.1 degrees
Objective aperture: 42mm
Twilight factor: 20.5
Exit pupil: 4mm
Eye relief: 16mm
Interpupillary distance: 58 to 72 mm
Close focus distance: 9.9 feet/3 meters
Weight: 23.1 ounces
Length: 5.5 inches

What is Twilight Factor? The factor that has the greatest impact on resolution or image detail, will be dependent upon the amount of light available during the time of observation. During daylight hours, when your eye pupil size will be only about 2 to 3mm, magnification will be the principal factor in image resolution. At night, with the eye pupil dilated to 6 to 8mm, aperture size is the controlling factor. In twilight conditions both of these factors control resolution effectiveness and the twilight factor is the term that compares binocular performance under these conditions.
The twilight factor is calculated by taking the square root of the product of the magnification and the aperture. The higher the twilight factor, the better the resolution of the binocular when observing under dim light conditions. For example, a 10 X 40 (twilight factor 20) would effectively resolve better under these conditions than a 7 X 35 (twilight factor 15.4) even though the 10 X 40 has a smaller exit pupil. Remember, however, that the twilight factor does not take into account the transmittance or quality of the optical system.

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