ergonomic rubber armored body design - a lightweight, ergonomic body design makes the binoculars enjoyable to hold for long periods of time. the central focus knob is intuitive to operate and is very user friendly. built to handle any environment, the binos has a rubber-armored coating to withstand extreme use and provide a non-slip grip, even in the wettest conditions. Objective lens diameter – the measurement of the lenses at the end of the binoculars where light enters them (measured in millimetres). The larger the measurement, the more light the binoculars can take in, making the image appear brighter (all other factors being equal). Their technical abilities include an impressive field of view up to 140 metres@1000metres and a close focusing distance of just 1.5 meters for those observations a little closer to home. Their exceptional colour reproduction makes it possible to reliably identify species across the entire focus-range.

The second number in the bin world represents the lens diameter of the outer lens; this represents the amount of light let in for a clearer, sharper image. This becomes important at dawn and dusk. If you are just shopping for the best deal and want an inexpensive product, ensure that the second number represents at least five times the magnification: so "40" is most frequently associated with 8x , and "50" is most frequently associated with 10x. This does not mean the second number needs to be even or odd, so go for the "8x43" or "10x54" if you like. What is the most important aspect that you wouldn't compromise when buying a pair of binoculars? The BRESSER Hunter 8x40is a compact and handy binocular, the perfect companion on just about any outdoor activity. The fully coated opticsand its solid mechanicsenable a true colour picture replication. The focus wheel is perfectly positioned in the DoubleLink Bridge and requires only 1.4 turns from close focus to infinity. The design is not only rugged but highly ergonomic, ensuring precise rotation even with gloves on. The second number refers to lens size. A larger lens will make the image brighter and clearer, especially in low light, but will also make the binoculars bigger and heavier (and probably more expensive)

Relative Brightness is the exit pupil squared. The relative brightness has no relation to how bright a pair of binoculars will be. The quality of the optics has more to do with the brightness of the binoculars than exit pupil size.

Remarkably, though the objective diameter is only 2mm smaller, the SFLs are considerably smaller (e.g., compare the length of 144mm with the 173mm of the SFs) and lighter (640g versus 790g). This means you have a pair of 8x40 binoculars which look and feel more like 8x32s but have a performance akin to 8x42s (incidentally the 8x32 SFs are 152mm long and weigh 600g). When out on the water, a rugged, waterproof design is essential. Low magnification will make it easier to see on a pitching boat. A magnification of 7x to 8x should do just fine. You will also want a larger objective lens. Look for an objective lens that is equal to or greater than 35mm. Suggested size: 7X50. Astronomy Top-rated glass optics with impressive specs: fully multi-coated lenses for brighter images, more contrast and highest resolution with phase-coated bak-4 prisms, 8x magnification power, and 6.5 foot close focusMost have a central focusing wheel and a dioptre adjustment for focusing images. The dioptre adjustment is an important feature, as it only adjusts one lens and so compensates for when your eyes have slightly different prescriptions. The central focusing wheel adjusts both lenses simultaneously.

This means that for your hobby or subject, it's worth thinking about what the best combination of magnification of objective lens size will work for you. Most binoculars offer somewhere between 8 and 12 times magnification, as this is generally the ideal range for bird watching and general wildlife viewing. Beginners should probably veer towards the lower end of this range. While greater magnification makes for a more close-up view, it also presents a few issues. The first is hand shake. At larger magnifications, any twitch of the hand becomes much more noticeable and can make the image appear blurry as a result. As you use binoculars more and more, you'll likely adapt and figure out how to reduce hand shake, but you'll probably want to start out with a more forgiving magnification. Eye relief – the distance between your eyes and the magnification lenses, which are the lenses you look through (measured in millimetres). Most binoculars have twisting eyecups that give you extra eye relief if you're not wearing glasses. Those wearing glasses shouldn't need to use the eyecups.

Will they suffice or do you need a more expensive pair? That depends on what you're after. Equipped with 10x magnification and 50mm objective lenses, the UpClose G2 10x50 are both powerful and fast, offering plenty of magnification and also able to collect a lot of light. The second problem posed by larger magnifications is a narrower field of view. While it's unlikely you're going to find a bird or other critter that won't fit in even a 12x pair of binoculars' field of view, getting that critter framed in your binoculars is another story. While it seems simple, seeing something and then raising binoculars up to your face and getting them trained on that exact thing is a skill in and of itself. Beginners often have trouble getting a bird within their binocular's line of sight, even when they can clearly see where it is with the naked eye. A wider field of view is more forgiving in such circumstances. You will get better at this the more you use binoculars. It is very common for birders to get an 8x pair as their first binoculars and then a 10x or even 12x pair as their second. This bright, sharp, and reliable model from the Olympus Pro lineup (a new 8x42 version is also available) feature nano coating for the first time in the range. Olympus is renowned for its optical expertise, so it’s no surprise that we get the same high-performance Zuiko optics that it deploys with its camera systems. Indeed, the claim here is these binoculars' optics offer unprecedented light transmittance for their class. If price isn't a concern and you just want the best optical quality on the market to date, then this pair of Swarovski CL Companion 8x30 compact binoculars are just the thing to let you observe wildlife from as close to 3 meters all the way up to 132 meters – with crystal clear vision. Best binoculars for beginners? Magnification: 10x magnification will make your target appear 10 times closer, and so on – it’s as simple as that.

These Olympus 8×40 S binoculars are the perfect companion for observing nature, sport, wildlife and bird watching. The larger the objective lens, the more light that can get into the binoculars, and thus the brighter the image. Larger objective lenses also make the binoculars themselves larger and heavier. You'll want to find a balance between brightness and portability that works for you. Objective lenses of 28mm are generally considered compact. Bins of this size often weigh well under a pound. However, you often make significant low-light performance sacrifices when moving to a lens of this size, meaning poor lighting conditions can result in silhouetted images with very little color detail. I use single-use lens wipes. I try to do this sparingly because you really never know if there is a tiny grain of something on the lens that will scratch. I have taken waterproof models and dunked them before wiping them down, but this is still a risky thing. Do you have any advice on how to keep your binoculars safe and clean when in the field? If you want to use binoculars for stargazing, you'll want to collect as much light as possible. There are many pairs on the market with 63mm objective lenses for just this reason. However, all of these models are quite heavy. Step 2: How Much Magnification do You Need?Focusing: Ease of focusing is an important factor to consider when choosing a pair of binoculars. When evaluating focusing, most binoculars use a central focusing knob that you turn while looking through the optic. Getting the sharpest focus possible may require very fine adjustment. This can be done in several ways. You can increase the number of revolutions that it takes to focus, making the adjustment finer. This slows down the focusing process. Extra time needed to focus can mean the difference between getting a good view of a moving object or not. Zeiss SFL 8×40 Binoculars are “SmartFocus and Lightweight”, designed specifically to have great performance and brilliant optics. The next major advancement was Keplerian Optics which used a convex eyepiece and relay lens in between the objective lens and eyepiece to flip the image. The lengths of these binoculars and telescopes were quite large to account for the long focal length.