![]() ![]() Make the image that you are looking at harder to keep stillįor more details please take some time to read this guide on How a Binoculars Magnification affects Stability, Field of View & Image Brightness.Will often decrease the brightness of the image produced.The most common being (but not exclusive to) 7x, 8x, 9x, 10x and 12x.Īs well as getting you closer to the action, for a more detailed view, a binoculars magnification affects many aspects of how a binocular performs and the view that you see through them. When looking for a binocular, you will notice that they come in a range of magnifications. The configuration of a bin should be used as a guide to get you to the right basic set-up, then you can go on and select the best binocular for you, based on your budget and your needs. So what is important to keep in mind is these configurations do not take into account the build quality, quality of the glass used and the coatings on the lenses and prisms and therefore does not take into account the transmittance levels. I have often seen a smaller binocular that uses good quality glass and coatings easily outperform a low quality larger one by producing an image that is not only brighter, but of a better quality. Sorry you cannot use this feature of comparing the the binoculars Side-BY-Side as your browser does not support iframes. I have also included the chart in a frame below, but for most people, it will be much easier and require less scrolling to view it, if you open it in a new window. The chart also lists a good example binocular for each configuration, to show what kind of eye-relief, field of view, weight and dimensions you can expect. Please note this is only a guide and different users may have specific requirements in different areas. I have also included a section on how well they can potentially perform in a range of general uses, like birding, hiking, travel and astronomy. There is also a scale section that shows how much detail you will potentially be able to see in low light as well as how bright an image each configuration of binocular should produce in poor light. ![]() The chart lists the most common configurations, right from a tiny 8x21, right up to the large 12x50 binoculars and shows how the binoculars size and weight, as well as their Exit Pupil and the Twilight Factor changes depending on the different magnification and size of objective lens combination. To get an overview and to clearly demonstrate how the different combinations of lens size and magnification affect a binocular, I have put this chart together: Different Binocular Combinations. It is important to know these and are indeed vital in helping you decide which combination is best for your specific needs. So a binocular with an 8x magnification and 42mm objective lenses (8x42) is very different to one that has a 10x magnification and 26mm objectives (10x26) – note neither is “better” and they both have their own strengths and weaknesses. The combination of a particular magnification and an objective lens size plays a big part in the size and weight as well as how well a binocular will perform in different circumstances. In this way, I hope it will make it much easier for you to decide what setup is the most ideal for your needs. So I thought I would put this document together that goes through the major binocular configurations and explains each of their particular weaknesses and strengths relative to each other. I often get asked questions in relation to the different configurations of a binocular and which one is the best for a particular use or uses. ![]()
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