These EagleView Zooms come with a fairly disappointing 13mm of eye-relief, which may be something to keep in mind if you want to use your optics whilst wearing glasses. Ideally and to be sure that you have enough distance to play with to enable you to see the full field of view without any vignetting when using your glasses most experts recommend that you should look for binoculars that have an eye relief of about 16mm or more. In most cases an eye relief of 14 to 15mm is adequate for most people who wear eyeglasses to be comfortable, so 13mm is a little on the short side. Most non-eyeglass wearers will just use the eyecups in the fully extended position. If the brand you buy is important to you, our best advice is to spend some time writing up your own list of ideal brands. That way when you come to the point where you’re comparing product options you can filter to only show the products from brands in your list. Price is another really important factor for analysing the quality of Nikon Sportstar 8-24×25 Zoom Binoculars vs other products in the Binoculars category. It’s obvious, but you will need to set your expectations of quality based on your budget and the price of the product you’re looking at, against the price of alternatives. 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.

You must remember that as well as the Exit Pupil, the performance of a pair of optics in poor light also depends a lot on the quality of the glass and optical coatings and not just the exit pupil and twilight factor formula. Good coatings on the lenses and the prisms can double the amount of light that gets through the binocular, when compared to those that have none or poor quality coatings.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. At 8x Magnification: All binoculars with an 8x magnification and 25mm objective lenses have an Exit Pupil of 3.13 (25/8) and a Twilight Factor of 14.1, which if you compare them to a full size 8x42 binocular, which has an exit pupil of 5.25 and a twilight factor of 18.3, it shows that the increased objective lens diameter of the 8x42 binoculars will gather more light and make it possible for the binoculars to transmit more light to your eyes. This is the main compromise to using a compact over a larger pair of optics, but having said that in reasonably good lighting conditions like during the day, where your eye pupil size is only about 2 to 3mm, this will not be much of a factor, it is just at twilight and under poor light where you can really notice the difference. You must also remember that having a good pair of compacts even in poor light is still much better than having no binoculars at all! Please Note: any reference to 'Royal Mail 24 ™' and 'Royal Mail 48 ™' are Official Royal Mail Service names and should not be interpreted as '24 Hour Delivery' and '48 Hour Delivery'. At 16x Magnification:When you increase their magnification to 16x their Exit Pupil reduces to 1.56 (25/16) which means that even less light will be getting to your eyes.

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. The next step was to try and narrow down our search even more. So we’ve already looked the prices of products in the Binoculars category. Then we’ve also looked at the prices of products from Nikon. So this step combines the two and looks specifically at the price you’d expect to pay for Nikon branded products in the Binoculars category. The brand of product you buy can vary in importance, from person to person. Some people will of course be much more particular about the brands they will use. Whilst others aren’t interested in the brand and are more interested in the overall quality or price of the product itself. Thankfully Nikon is a brand that many customers have grown to love over the years and is very popular for items in the Binoculars category.Ideal Uses: Like most compact binoculars, these are pretty good if you are looking for a take anywhere pair of binoculars, perfect for camping... although not if you are going to get them wet! I would take them hiking with me, if spotting birds and wildlife was not my main focus as they are let down by their poor field of view. I also see them sitting in the cubbyhole of my car, or in my golf or kit bag to be used at any time. I think where they may be ideal is at a sporting event, where you can use the zoom to take in some details on the field, although once again a wider field of view would have really been appreciated here. Brand is again something that you should really put some thought into when buying any product, but especially so for Binoculars. There will of course be some recognised brands that offer better products and brands that you know you can rely on to provide a great product, time after time. Thankfully Nikon is one of those brands. centimeters = inches / 0.393701 Using our inches to centimeters converter you can get answers to questions like: As you can imagine, pricing is one of the most important factors of any purchasing decision. We can find the perfect product for our needs, that fits the brief in every single way. But if it doesn’t fit our budgets, we simply can’t (or at least shouldn’t) buy it.

In summary we feel that NIKON Aculon T11 8-24 x 25 mm Binoculars really hits the mark. We’ve scored it an amazing 8.8/10 overall and there aren’t many products in this category that get such a good score. The 25 times table chart is given below to help you learn multiplication skills. You can use 25 multiplication table to practice your multiplication skills with our online examples or print out our free Multiplication Worksheets to practice on your own. 25 Times Tables Chart Whilst I would not expect a low cost binocular like these to have the same build quality as a top of the range pair that costs ten times as much, but I still want them to be tough enough to handle most normal bumps and scrapes and still want them to feel like you have a good quality optical instrument in your hands and not just a toy. The first is brand. Looking at the brand of the product is often a really good indicator for judging product quality. For example you’d expect a much higher quality product from a brand known for providing excellent quality than you would from an unknown or even a budget brand.Weight and especially size really matter in a good pair of compacts and obviously we are looking for a pair that is as small and lightweight as possible. This is because if the "compact" pair is too large to suit your specific requirements, you may as well just go and get yourself a similar quality mid or full sized pair of optics that by their very design will usually perform better, especially in low light conditions: To calculate an inch value to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor). Inches to centimeters formulae I doubt if this very thin rubber armouring would protect the optics very much from damage, but it does make a nice grippy surface to hold onto and is well placed for this. 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.