Leupold Mesa 10X50Mm Binocular Black 53696

by Leupold

Product Features

• Porro prism binoculars offer classic binocular styling
• Multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity
• Focus dial-lock holds focus for a specific distance, making extended or repeated viewing easier
• Close focus distance of 29.5 feet; 5.5 degree field of view; 22.4 twilight factor rating
• Waterproof; backed by limited lifetime warranty

Product Description

Amazon.com Product Description

The center-focus, Porro prism Leupold Mesa binocular offers classic binocular styling, along with advanced optical features such as high-performance lens coatings. The Porro prism design offers the user excellent depth perception and outstanding 3D image representation. The focus dial-lock holds focus for a specific distance, making extended or repeated viewing easier. The multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity. Twist-up eyecups and generous eye relief for comfortable extended viewing, even with eyeglasses. This rugged, waterproof binocular is covered by the Leupold's limited lifetime warranty.

Specifications:

• Magnification: 10x
• Linear field of view: 288 feet per 1000 yards/96 meters per 1000 meters
• Angular field of view: 5.5 degrees
• Objective aperture: 50mm
• Twilight factor: 22.4
• Exit pupil: 4.9mm
• Eye relief: 28mm
• Interpupillary distance: 60 to 70 mm
• Close focus distance: 29.5 feet/9 meters
• Weight: 32.3 ounces
• Length: 6.5 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.

Product Description

The focus dial-lock holds focus for a specific distance, making extended or repeated viewing easier. The multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity. The Porro prism design offers the user excellent depth perception and outstanding 3D image representation. Twist-up eyecups and generous eye relief for comfortable extended viewing, even with eyeglasses. Rugged, waterproof, and covered by the Leupold® Limited Lifetime Warranty. Available in black or Advantage® Timber¿ HD¿ camouflage finish.

Product Details

• Item Weight: 12 ounces
• Shipping Weight: 2.7 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B001HN5GVW
• Item model number: 53696
• Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
• Amazon Best Sellers Rank: #336,502 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Customer Reviews

Most Helpful Customer Reviews

4 of 7 people found the following review helpful:

5.0 out of 5 stars Great Binoculars for the Price!, October 3, 2007

By 

Perry (Ga) - See all my reviews

Amazon Verified Purchase

I have never owned any binoculars other than Bushnell, and these are by far better. The view looks like HD as opposed to 480i.