10X25mm Premier

by Nikon Print

What would you like to print?
(Reviews and Documents/Videos will not be printed)

Basic Product Information
Full Description
Tech Details
Supplied Accessories
Recommended Accessories

More product information
If you need high power in a small package, this new Nikon 10 x 25mm compact may be just what you’re looking for. Its handy size and light weight are just right for travel, casual daytime birding, neighborhood bird walks, backpacking, kayaking. It’s usable anywhere high power, light weight, waterproofing, and a pocket-sized package are just as important as outstanding optics . . . and blindingly bright low light images are not essential. Despite its small size, its state-of-the-art optics and optical coatings provide surprisingly bright images. And, of course, the image quality is typically Nikon – truly superb.

Its premium H-body roof prism optics use ecologically-safe glass components made without lead or arsenic, as is the case with conventional binoculars. All air-to-glass surfaces are fully multicoated for the highest possible light transmission and contrast. Its high index glass prisms are silver mirror coated for superior light transmission. In addition, phase-correcting coatings on the prisms make a visible difference when looking at backlit subjects in early morning or late afternoon, where the coatings reveal substantially more detail and color in the shadowed areas than can be seen through optics without phase coatings.

The lightweight (10.6 oz.) magnesium alloy body is nitrogen-filled and O-ring sealed to be fogproof and fully waterproof. This allows the binocular to be washed clean when it gets dirty or is accidentally soaked in salt water. The inert nitrogen filling also ensures a lifetime of tarnish-free performance from the silver prism coatings.

Textured black rubber gripping surfaces on the attractive deep bronze-colored body provide a secure grip in wet weather, and a more comfortable grip in hot or cold climates. The gripping surfaces provide a measure of shock-proofing to the optics, but this Nikon should not be considered an “armored” binocular in the normal understanding of the term.

One and a half turns of the ribbed center focus knob at the front of the binocular moves quickly and smoothly from the horizon to a 7.8’ close focus. There is a separate small rotary diopter adjustment knob at the center rear of the binocular to match the optics to the user’s individual eyesight. Twist up and lock in place rubber-rimmed eyecups and a long 15mm eye relief allow eyeglass wearers to see a virtually unvignetted field.

The 10 x 25mm comes with a genuine leather soft carrying case with a convenient belt loop. A durable magnetic catch keeps the case securely closed when traveling, but opens easily for quick access to your binocular when a life bird happens by. Individual eyepiece covers are supplied, with loops so they can be tethered to the 5/8” wide neck strap. There is no eyepiece rainguard. The dual fold design of the body lets you fold the binocular down to an easy-to-handle package that measures only 2.75” wide by 4.5” long.

Optically very sharp, with very low astigmatism, distortion, and curvature of field. The images look virtually as good at the edges of the field as they do in the center – a true rarity in binoculars in this size and price range. All in all, an optically superb and easy-to-handle high power compact binocular that will make the most critical observer a happy birder.

Optical Type:
The optical design of a binocular or spotting scope. A binocular can be either a porro prism (whose objective lenses are off-set and spaced further apart than the eyepieces) or a roof prism (whose objective lenses are in line with the eyepieces). A spotting scope can be either a porro prism or roof prism refractor or a catadioptric (a combination of lenses, mirrors, and prisms).
Roof Prism
Field of view:
The field of view (FOV) is the amount of observable world one can see at any given moment.
Field of view 1000 yards:
Exit Pupil:
The circular image or beam of light formed by the eyepiece of a telescope. To take full advantage of a scope's light-gathering capacity, the diameter of an eyepiece exit pupil should be no larger than the 7mm diameter of your eye's dark-adapted pupil, so that all of the light collected by the telescope enters your eye. (The eyepiece exit pupil diameter is found by dividing the eyepiece focal length by the telescope focal ratio.) Your eye's ability to dilate declines with increasing age (to a dark-adapted pupil of about 5mm by age 50 or so). For those in this age group, eyepieces with exit pupils larger than their eyes can dilate to simply waste their telescope's light-gathering capacity, as some of the scope's light will fall on their iris instead of entering their eye.
Relative Brightness:
A number used to compare the brightness of binoculars or spotting scopes of similar magnification. The relative brightness is determined by squaring the diameter of the exit pupil. The larger the relative brightness number, the brighter the image.
Twilight Factor:
A number used to compare the effectiveness of binoculars or spotting scopes used in low light. The twilight factor is found by multiplying the size of the objective lens (in mm) by the magnification and then finding the square root of that result. The larger the twilight factor, the more detail you can see in low light. A twilight factor of 17 or better if usually required for reasonable low light use.
Eye Relief:
Eye relief is the distance from the last surface of the eye lens of an eyepiece to the plane behind the eyepiece where all the light rays of the exit pupil come to a focus and the circular image is formed, sometimes called the “Ramsden Disk.” This is where your eye should be positioned to see the full field of view of the eyepiece. If you must wear glasses because of astigmatism, you’ll usually need at least 15mm of eye relief or longer if you want to see the full field of view with your glasses on.

A note on our eye relief figures: Quite often, our eye relief figures will differ from those of the manufacturer. This is because we measure the “usable” eye relief, while the manufacturers specify their usually-longer (but technically correct) “designed” eye relief.

The eye lens of the eyepiece is normally recessed below the rubber eyeguard or rubber rim of the eyepiece to keep the lens from being scratched during use. An eyepiece might have a “designed” eye relief of 15mm (and the eye relief will truly measure 15mm from the eye lens to where the image forms). However, if the eye lens is recessed 3mm below the eye guard, the Ramsden Disk forms only 12mm above the eyepiece body (the 15mm “designed” eye relief, less the 3mm of eye relief made unusable by having the eye lens recessed into the body of the eyepiece). This “usable” eye relief of 12mm (measured from the rolled-down eyeguard – the closest point you can get your eye to the eye lens – to where the image forms) is the eye relief figure we would measure and list in this website.

Why is it important to list the “usable” eye relief? For those people who don’t wear eyeglasses while observing, a few mm difference between the eye relief they expect from the manufacturer’s literature and the shorter eye relief they actually get in real life doesn’t mean a lot. They can simply move a little closer to the eyepiece to see the full field, and never realize that the eye relief is a little shorter than they expected. However, some people must wear eyeglasses while observing, because of severe astigmatism. These observers can’t move closer to the eyepiece if the eye relief is shorter than expected because their glasses get in the way. For these people, the real life “usable” eye relief is more important than the technically correct but sometimes not fully usable “designed” eye relief. We measure and list the actual usable eye relief so that people in the real world can pick the eyepieces that will work best for them.

Interpupillary Distance:
Close Focus:
How close you can get to an object and still see a sharp image of it in your binocular or spotting scope is called the “close” or “near” focus
A binocular or spotting scope whose body is clad in rubber or polyurethane armor is said to be armored. Armor can be applied for looks, a better grip, noise-proofing, etc. An armored body does not guarantee that a binocular or spotting scope is waterproof, although most waterproof optics are armored.
The weight of this product.
10.6 oz.
25 years
There are currently no Cloudy Nights reviews associated with this product

User Ratings/Reviews from our Customers (www.astronomics.com)
Overall Product Rating: AstronomicsAstronomicsAstronomicsAstronomicsAstronomics(0.00)   # of Ratings: 0   (Only registered customers can rate)

We haven't recommended any accessories for this product quite yet... check back soon or call one of our experts (1-405-364-0858).
  • Genuine leather soft case with belt loop
  • Individual eyepiece covers
  • Neck strap
No documents have been associated with this product.
No videos have been associated with this product.
There are currently no formulas associated with this product
Nikon - 10X25mm Premier

Click icon(s) below & hover image above for zoom

Nikon - 10X25mm Premier
   · No ratings/reviews   Only registered users can submit ratings - Register Here
Our Product #: N1025P
Manufacturer Product #: 7507
Price: $479.95  FREE ground shipping - Click for more info
Congratulations. Your order qualifies for free ground shipping within the 48 contiguous United States.
MSRP: $798.95

 E-mail this product to a friend E-mail this product to a friend

Your Email:  
Your Friend's Email:  
Confirm Friend's Email:  

  200 characters or less

An email containing a link to this product has been sent to the email address you provided.

Clear Skies!

 Have a question? Do you have a question about this product?
 Found a better price? Found a lower price? Click to let us know... or call 800-422-7876 before you buy.

If you’ve found a lower delivered price on this product, let us know about it below. We’ll do our best to meet or beat that price and will get back to you within one business day with our best offer. Thanks for giving us the opportunity to give you a better deal.

Your Name:  
From Who:  
Context:  Magazine AdOnline
Website Address:  
Cut and paste the web address into the box above
Your Email:  
Confirm Email:  

We’ll do our best to meet or beat that price and will get back to you within one business day with our best offer. Thanks for giving us the opportunity to give you a better deal.

Clear skies,

This Nikon 10 x 25mm Premier is a high power waterproof and fogproof compact with performance that was unobtainable from any 25mm binocular at any price only a few short years ago . . .

. . . our 35th year