Nikon 7541 MONARCH 3 10x42 Binocular (Black)
|Price:||$192.91 & FREE Shipping. Details|
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- High Reflective Silver Alloy Phase corrected prisms - helps eliminate the degradation of the image caused by different light phases reflecting in the binocular.
- Fully Multicoated - all lens surfaces are multicoated with anti-reflective coatings
- Polycarbonate Body - designed to be rugged and durable
- Multi-click Turn and Slide Eyecups with generous eye relief - great for eyeglass wearers
- Unmatched Warranty - 25 year No Fault repair or replace warranty
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|Exit Pupil Diameter||4.2 mm|
|Field Of View||299 feet|
|Item Dimensions||3 x 5.1 x 5.7 inches|
|Item Display Weight||3 pounds|
|Item Weight||1.3 pounds|
|Objective Lens Diameter||42|
|Shipping Weight||1.85 pounds|
Compare to Similar Items
This item: Nikon 7541 MONARCH 3 10x42 Binocular (Black)
Nikon 7577 MONARCH 5 10x42 Binocular (Black) B00C66C784
Nikon 7576 MONARCH 5 8x42 Binocular (Black) B00C66C950
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||The Professional Depot||Kellards||The Professional Depot||Amazon.com|
|Objective Lens Diameter||42||42||42 mm||50 mm|
|Item Weight||1.3 pounds||2.25 pounds||1.34 pounds||1.88 pounds|
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From the Manufacturer
PERFORMANCE JUST GOT A NEW NUMBER! With its legendary MONARCH bloodlines and enhanced optical system— the all-new MONARCH 3 can maximize every moment you spend in the field— with incredibly bright, high-resolution views from the first rays of light until the very last. Designed for a lifetime of tough and exciting adventures, this binocular comes equipped with multi-click, turn-and-and-slide rubber eyecups, long eye relief and a new lightweight and rugged, yet sleek and comfortable, ATB body. The all-new MONARCH 3, the new benchmark of performance. Available in 10x42mm and 8x42mm models.
- Focusing System – Center Focus
- Magnification – 8x or 10x
- Objective Diameter (mm) – 42
- FOV @ 1000 yds – 299 to 330 ft
- Close Focus Distance (ft) – 9.8
- Exit Pupil (mm) – 4.2
- Eye Relief (mm) – 17.4 to 24.1
- Waterproof/Fogproof – Yes
- Prism coating – High Reflective Silver Alloy Phase corrected prisms
Fully Multicoated lenses and prisms
Multi-click Turn and Slide Eyecups with generous eye relief – great for eyeglass wearers
New Objective Lens Covers
Nikon MONARCH 3 Additional Highlights
- Unique Ergonomic Design – Soft feel that helps you stay comfortable for long periods of glassing
- Tripod Adaptable
- Waterproof / Fogproof – Nitrogen filled and O-Ring sealed
Nikon is dedicated to quality, performance and total customer satisfaction. If your Nikon binocular, Spotting Scope or Fieldscope requires service or repair not covered by our 25 Year Limited Warranty, Nikon will repair or replace it (even it was your fault) for just $10, plus return shipping and handling.
Excludes – StabilEyes, Laser Rangefinders and Spotting Scope/Fieldscope eyepieces.
Real field of view
Real field of view is the angle of the visible field, seen without moving the binoculars, measured from the central point of the objective lens. The larger the value is, the wider the viewfield available. For example, binoculars with a wider field of view are advantageous for locating fast-moving wild birds within the viewfield. This also applies for finding small nebulas or a cluster of stars in astronomical observations.
Apparent field of view
Apparent field of view is the angle of the magnified field when you look through binoculars.
The larger the apparent field of view is, the wider the field of view you can see even at high magnifications.
With the conventional method used previously, the apparent field of view was calculated by multiplying the real field of view by the binocular magnification. (With this formula, apparent field of view wider than 65˚ is called wide field of view.)
After revision, Nikon's figures are now based on the ISO 14132-1:2002 standard, and obtained by the following formula:
tan ω' = τ x tan ω
Apparent field of view: 2ω'
Real field of view: 2ω
(With this formula, apparent field of view wider than 60° is called wide field of view.)
For example, the apparent field of view of 8x binoculars with an 7.0°real field of view is as follows:
2ω' = 2 x tan-1 (r x tan ω)
Relative brightness value is obtained by squaring the diameter of the exit pupil. The greater the relative brightness is, the brighter the image will be. With 8x42 binoculars, the brightness is (42÷8)2= 28.1. This means that if the magnification is the same, the larger the effective diameter of the objective lens, the brighter the image will be.
Do binoculars with the same exit pupil offer the same brightness?
Multilayer coating is also applied to prisms to raise transmittance. A roof prism system has one surface that does not feature total internal reflection, so vapor deposition with metals, etc. must be used to raise the reflectivity of this surface. Also, phase-correction coating on roof surface ensures high-contrast images.
*Binoculars' brightness and contrast are affected by not only prism coatings, but also the number of objective lens and eyepiece lens, and types of coatings.
|Metal-vaporized, high-reflectivity prism coating |
Using vacuum-vaporization technology, metallic material such as aluminum or silver is applied to the reverse side of a prism surface that is not totally reflective. This raises the reflectivity of the prism mirror surface.
Dielectric high-reflective multilayer prism coating
This coating features reflectance that exceeds 99%. By utilizing light interference, this coating assures high reflectivity across the full visible range, and ensures high color reproducibility.
|Reflectance characteristics of prism coatings on mirror surface |
The horizontal axis indicates the wavelength of light. The vertical axis indicates the reflectance of light.
Binoculars' brightness is determined not only by the reflective mirror, but also by the total optical system such as the number of lenses and quality of coatings.
A roof (Dach) surface can cause phase shift of light that affects image resolution. This phenomenon is caused by phase differences arising from total light reflection on a roof (Dach) surface and it can occur with even a perfectly processed prism. Phase-correction coating is applied to the surface to minimize loss of resolution, ensuring high-contrast images.
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.
Top Customer Reviews
After studying reviews and comments thoroughly, I concluded there are brilliant experts commenting regularly on Amazon - much more insightful than the professional reviewers who focus on expensive, heavy devices purchased by others of their ilk. From my fellow consumers' insights, I purchased 11 binoculars with at least 70% five-star ratings that fit my general specifications for home or travel.
GENERAL CONCLUSIONS. After exhaustive examination - reading a DVD box at 46 feet, finding individual cattle from a moving minivan, and watching stars and planets in my backyard - I concluded the essential attributes for binoculars across categories are:
(A) Plenty of Light brought to your eye. Light is determined by the diameter of the light-gathering lens divided by the magnification. In other words, an 8x42 pair has a ratio of 5.25 and produces LOTS of light, while a 10x21 pair has a ratio of 2.1 and always appear dark. Conclusion: About 3.0 is adequate and the best available for compact binoculars.
(B) Good Stability of View. View stability depends on (i) the degrees of field of vision (can you find what you are looking for), (ii) the depth of visibility (do you have to refocus for every few feet of depth), and (iii) wobble (which is itself determined by (i) and (ii)).Read more ›
Anyway, I took the Nikon out today and was immediately impressed by the clarity and light gathering ability of these fine binoculars. Images were crisp and clear and looking at a Redtailed Hawk in a dead tree at 30 yards was a beautiful experience. The detail was amazing. Even dream like as one friend said who took a look. "More real than real"
UPDATE: Well I've had them out several times now and while I like them more and more I still wasn't sure how good they actually were not having much to compare them to. But today I got to compare them to some Kowa 8x42 BD binos and they did very well. It was a cloudy day so I couldn't compare them in bright light but in the conditions present it was hard at times to tell that much difference optically. (The Kowa's cost almost twice as much) I compared them thinking I was going to be disappointed but ended up really appreciating these Nikons. What a fantastic deal for $200 bucks. If you are on a budget buy these binoculars.
Most Recent Customer Reviews
I love these. They are heavier than I'd expected, but considering the optics, I'm not surprised. I am not in love with the placement of the strap attachment, but such is life. Read morePublished 2 months ago by AnnainOK
Very nice binoculars. Great contrast and very clear. A bit heavier than I would've liked, but that's ok. They are excellent quality for the price.Published 2 months ago by Birdie
Spectacular performance -- just right for boating and watching birds = 2 of our favorite activities.Published 2 months ago by David-Mercer Island
I could bore you with a lot of scientific mumbo jumbo and fancy benchmark performance metrics, but I won't. I respect you too much for that. Read morePublished 2 months ago by The Fryman