GMGold Black Wooden Picture Frame, Wood, Lot de 1 NOIR, 10x15 cm

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At 8x magnification, I was also really impressed by just how little softening of the image on the periphery of the view there was and you can only just notice it by really looking for it. At higher magnification levels the amount of softening increases and becomes much more noticeable at 24x.

I do still have some reservations as to combining a compact instrument with small 25mm lenses and a powerful 20x magnification as it really does reduce their optimal operating window and they are never going to be able to offer you the image quality or brightness of a high powered fixed magnification binocular with large lenses. At 20x power these are advertised as having an angle of view of 2.6° (45m @ 1000 meters / 135ft @ 1000 yards) which is very narrow and indeed it feels it when looking through them. Delivery charges vary for the following postcodes and will be delivered between 5-7 working days to the following postcodes: GY, HS, IM, IV41,IV30, IV42, IV44 – 49, IV55, IV56, JE, KA27 – 29, KW1 – 14, KW15 – 17, PA21 – 38, PA20, PA40+, PH9, PH15 – 20, PH32 – 44, PH49, PH50, TR21 – 25, ZE. This is why I would suggest trying to mount any high power binocular onto a steady base like a tripod/monopod if you are going to use a magnification above 12x to 15x. Thus for me it is a shame that these binoculars are not easily tripod mountable using a standard binocular tripod adapter and thus to do so you will have to think a little outside the box and come up with your own plan or at the very least try and rest your elbows onto a steady surface like a table to minimize image shake. So here I am thinking of applications like hiking in the mountains or even as the instrument that a price conscious prepper would store in their survival / bug out bag as the Discovery Gator 8-20x25 binoculars could certainly be useful for scouting out terrain and looking for dangers or possible routes ahead of you.I measured these to have a length of 10.4cm, a width of 10.2cm (with the hinge open) and a depth of 4.5cm (with the hinge open). What I can say is that these use reverse porro prisms to turn the image upright. Whilst this design may not be the most compact design, it is both relatively cheap and simple to make as you do not need the same level of tolerances or the extra coatings to produce the same level of optical performance as that of a roof prism which is why it is a popular and usually the best choice for a cheap binocular. Located near the right eyepiece where you usually find the diopter adjuster is a slider which is used to alter the magnification. I found the placement to be excellent as it was very easy to change the magnification setting using my right thumb without having to move the binocular from my eyes or make a large change to my natural grip on the binoculars. The twist-up eyecups look to be made from a very hard plastic that have a very thin rubber coating on them. The ocular lens has a diameter of 11mm and the eyecup has an external diameter of 37mm, which are both considerably smaller than what you find on most full sized binoculars, but is about average for a compact. This smaller size and very thin rubber covering mean that they are not the most comfortable eyecups that I have ever used, but any discomfort is only really noticeable when you push them quite firmly against your face.

To see this in action, you can hold these binoculars up at arm's length and look at the eyepiece lenses, where you can clearly see the circle of light in the eyepieces, this represents the exit pupil. As you increase the magnification you can actually see this circle of light in each eyepiece getting smaller and smaller - see my series of photos below that I took to demonstrate this: An important thing to consider when looking at the size of a compact binocular is how small they are when they are folded. When you are are looking through them, just how small they are is not that important, but size is far more important when you carrying them around with you. Different designs of compacts fold up in different ways and this can make a big difference is their size. A cleaning cloth is included and whist it is not a very high end microfiber one, it is still useful for cleaning the body and if you are very careful, to lightly dust off the lenses. However you will still be best off with a lens cleaning kit for safely cleaning the lenses. Image shake also dramatically increases at the higher powers, which makes it very hard to view fine details, which in many ways negates the advantage of having a high magnification. The lenses on these Nikon EagleView Zooms are multilayer-coated. What this means is that they have received multiple layers of anti-reflective coatings which helps to increase light transmission, for a brighter image and therefore better low light performance. This is good, but it would have been even better if they had been fully-multi coated, which would mean that they had multiple layers of anti-reflective coatings on all air to glass surfaces and not just some of them as these are.If you want a binocular that is going to offer you a brighter, better quality view at high power, then I would certainly suggest going for a larger instrument. For more, take a look at my section on High Powered, Long Distance Viewing Binoculars. Whilst there is no mention as the actual material used in the construction of the chassis, I think it is safe to assume that a polycarbonate plastic is used when you considering their price and just how lightweight they are. Whilst this may not be quite as luxurious or as strong as more expensive materials like magnesium or aluminium, these Discover binoculars don't feel particularly flimsy in any way.

This is not the case with the Discovery Gator 8-20x25 binoculars and whilst the best image I could achieve after fine tuning the focus wheel was still not quite as sharp at 20x as that which I saw at 8x, it really was not bad at all, which for me is actually impressive for a compact zoom binocular at this price. As you would expect, keeping the image nice and still becomes harder and harder as you increase the magnification settings. At 24x I was able to the image still enough to take in all the details of what I was looking, but I had to concentrate on staying very still as even the smallest movement has a big impact on the amount of image shake. This is fine for short bursts, when you just want to take in a bit of detail, but is definitely not something that you would want to do over longer periods. The factor 0.393701 is the result from the division 1 / 2.54 (inch definition). Therefore, another way would be: You must be available to accept delivery on the date you have requested, failure to do so will result in paying for a re delivery charge.

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To calculate a centimeter value to the corresponding value in inches, just multiply the quantity in centimeters by 0.393701 (the conversion factor). Centimeters to inches formulae At 12x Magnification:When you increase the magnification on these Eagleviews to 12x their Exit Pupil reduces to 2.08 (25/12) which means that less gets to your eyes. My sample Discovery Gator 8-20x25 Zoom binoculars came equipped with a protective carry case, wrist strap and cleaning cloth: By opening and closing the central hinge, you can set the eyecups to match the distance between your eyes. On these, they go from a minimum of distance of 5.2cm apart, right up to 7.4cm.

Some cheap optics use coatings on the lenses to artificially tint the view, for example you find many cheap binoculars with ruby coated lenses which are used to filter red to compensate for their poor-quality optics that do not properly converge the color spectrum. Thankfully this is not the case with these and I thought that the colors that are produced by the EagleView look and feel natural, but with possibly a tiny bit less saturation than on my control binoculars. From our carrier you will receive a text message on the day of the delivery with a 2 hour delivery window. If there any changes or delays you will receive an update via text. At the low 8x zoom setting, I did find that there was just enough eye-relief to use them whilst wearing glasses and get the full field of view. Caused by chromatic aberrations, the level of color fringing that is observable around the edges of contrasting objects becomes a little more evident at higher magnifications. Even so and especially at lower powers, I feel the amount is more than acceptable for a binocular in this price class and thus I would say these do a reasonably good job of keeping it to a minimum. Whilst not at the same level as which you get from a high or even mid-to-high level 42mm binocular for example, for a low costing 25mm compact binocular, I thought that the colors produced and the level of contrast you see in the image were pretty good. this is especially true at lower magnifications where I am happy to say they easily compare with the majority of other 8x or 10x compacts that I come across at this sort of price level.

You should be under no illusions - these are far from being the best binoculars in the world, but having said that these Nikon EagleView Zoom binoculars are far, far cheaper than the top of the range compacts and to be fair to them they are not at all bad and I would say easily outperform their price tag. If you can live with their weak points and are looking for a cheap pair of zoom binoculars then the Nikon EagleView Zoom 8-24x25 CF maybe just for you.