10X25mm T* Conquest

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The Zeiss 10 x 25mm Conquest Compact is the newest version of a high power pocket-size binocular that has been a favorite with on-the-go birders and world travelers for years. The Zeiss 10x25mm Conquest is compact enough to fit into pocket, purse, or auto glove compartment. It’s the right choice for travel and for neighborhood birding walks where you don’t want to be weighed down by your full-sized binocular. It is also an excellent choice for a traveler to slip into his or her pocket for examining architectural details high up in buildings, cathedrals, etc.

The Zeiss Conquest Compact has outstanding high contrast optics with famous Zeiss T* (T Star) multicoatings and P* (P Star) phase-correcting prism coatings – the very latest high-tech optical coatings. They make this 10x25mm Zeiss Conquest very suitable for high power/long distance daytime birding in open meadows and grasslands, where high light-gathering is not essential. With only 25mm objective lenses, the 10 x 25mm Zeiss Conquest is not an overwhelmingly bright low light binocular, but it will do a more than adequate job of showing you details and color in muted light conditions.

Sealed and nitrogen-purged to be waterproof and fogproof, the Zeiss 10 x 25mm Conquest is a rugged and capable compact binocular that can take the worst climate extremes in stride. And it is small enough and light enough to take conveniently anywhere in the world.

Features of this binocular . . .

  • Ultra-lightweight body: This H-body “mini” roof prism binocular weighs only 7.1 ounces. The rugged body is made of high impact polycarbonate. It has a non-slip matte black finish that provides a secure grip in wet weather and a cool grip in hot climates. The very light weight can emphasize minor hand tremors. If unsteady hands might be a problem, you would probably be better served by going to a heavier binocular, such as the 10x30mm Zeiss Conquest. Their somewhat greater weight will help soak up minor hand tremors and give you a steadier image.

  • Double-hinge body design: The 10 x 25mm has a double hinge design that lets it fold down to a very compact 4.7” x 2.4” x 2.75” size that fits comfortably into auto glove compartment, purse, or pocket.

  • Fully multicoated: All optical elements are fully multicoated with patented and proprietary Zeiss T* (T-Star) antireflection coatings for maximum light transmission. These are the same multicoatings that are used on the most-expensive Zeiss binoculars. They yield a level of brightness and contrast that’s uncommon in a binocular in this size range.

  • Phase coatings: The latest Zeiss P* (P-Star) phase-correcting coatings on the image-erecting prisms provide very high contrast and resolution. This is particularly visible when looking sunwards, where more color and detail is clearly visible in the shadowed areas of backlit or silhouetted birds. These are the same advanced phase-correcting coatings that provide such exceptional images with Zeiss full-size binoculars.

  • Fully waterproof and fogproof: Sealed and nitrogen-filled to be completely waterproof and fogproof. The dry nitrogen filling makes the Conquest internally fogproof in all humidity and temperature extremes. The inert nitrogen also prevents the internal formation of fungus in high humidity climates, such as rain forests. This Conquest compact is designed to operate reliably over a wide temperature and humidity range – from Attu to Death Valley, from the Serengeti Plains to Costa Rica.

  • Close focus: The 18’ close focus is acceptable for most long and medium distance birding. This is not a binocular for butterflies and close-in birding.

  • Good field: The field of view is a reasonable 5.4°, suitable for medium and long distance use.

  • Roll-up eyecups: The soft rubber eyecups roll up to block ambient light and improve the contrast when using the binocular without glasses. They roll down for eyeglass use.

  • Eye relief: Eye relief is an acceptable 12mm, comparable to other quality compacts and superior to many lesser binoculars. Vignetting will be visible, but mostly minor, for those who must wear eyeglasses while observing. Unlike many binoculars, whose usable eye relief usually measures a millimeter or two less than that specified by the manufacturers, all 12mm of the Zeiss eye relief is fully usable.

  • Fast focusing: Less than a single turn of the small ribbed focusing knob on the left side of the binocular hinge moves from the 18’ near focus to the horizon and beyond.

  • Diopter correction: A second small knob on the right side of the binocular hinge adjusts the binocular to match your individual eyesight. The diopter knob has a smooth surface (compared to the ribbed focus knob) so you can’t accidentally change the diopter setting by mistaking it for the focus knob. In addition, the stiff action of the smooth diopter knob is quite difficult to turn accidentally, further preventing accidental changes in the diopter setting.

  • Included accessories: The Zeiss Conquest Compact comes with a water-shedding padded Cordura-type soft nylon case with a Velcro closure. The case fits comfortably into auto glove compartment, purse, or pocket and has a belt loop for convenient no-hands carrying. The binocular has a permanently-attached thin woven neck strap.

  • Lifetime warranty: This genuine Zeiss import qualifies for the unique Zeiss Lifetime Transferable Warranty available only to registered owners of Zeiss products that have been legally imported by Carl Zeiss USA. Click on the “Warranty Information” link to the left and then click on the “Zeiss” link in the warranty page that opens up for the full details of the Zeiss Lifetime Warranty.
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.
5.4°
Field of view 1000 yards:
285'
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.
2.5mm
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.
6.25
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.
15.81
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.

12mm
Interpupillary Distance:
29-72.5mm
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
18'
Height:
4.7"
Armored:
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.
No
Weight:
The weight of this product.
7.1 oz.
Warranty:
Limited Lifetime
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Zeiss - 10X25mm T* Conquest

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Zeiss - 10X25mm T* Conquest
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Our Product #: Z1025C
Manufacturer Product #: 52 20 74
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MSRP: $611.10
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This high power Zeiss 10 x 25mm Conquest Compact binocular is the newest version of a pocket-size binocular that has been a favorite with weight- and space-conscious on-the-go birders and world travelers for years . . .





. . . our 34th year