![]() Make sure the image is sharp, bright and easy to focus.Choose a seller with a good returns policy. It’s best to try out several different binoculars before you buy, and in poor light conditions.Tips for testing out binoculars and telescopes Angled scopes also make it easier to share the scope with people of different heights. You look down into the eyepiece – this is comfortable and enables you to set your tripod lower, increasing stability. Scopes can be straight, with the eyepiece in line with the objective, or angled, with the eyepiece pointing upwards. An 8x42 gets more light through than a comparable 8x32, but you may not see it. A bigger exit pupil (see box) gets more light to the eye.īut our pupils become less able to dilate as we age, so you might not be able to use the extra light. How much comes out the other end depends on the design, glass and coatings. The size of the objective determines how much light enters a pair of binoculars or a scope. If you want to digiscope (take photos through your scope) then choose a bigger objective, because more light will get to the camera. If you want to travel light, you could try a 50mm scope, but you will sacrifice low-light performance. If you want a smaller, lighter pair, and don’t need low-light performance, compact binoculars with 20–25mm objectives are also worth a look. In terms of the objective size, 32mm or 42mm binoculars are popular choices. If there’s a wide-angle option, go for that.Īll things being equal, the bigger the objective lens, the brighter the view. ![]() For a fixed magnification, something around 30x is a good choice. A zoom gives you options, but decent ones are expensive. Scopes can have fixed magnification or zoom eyepieces. Bigger magnification isn’t necessarily better, though – the field of view tends to be narrower, and the optic is harder to hold steady. Most wildlife watchers use 8x, 8.5x or 10x binoculars. A 25–60x 85 scope magnifies from 25x to 60x, and has an 85mm objective. Is it mainly for watching birds and mammals? Do you want to look at insects in detail? How much low-light watching will you do? What do all of the numbers mean?Īn 8x42 pair of binoculars magnifies 8x – so the subject is eight times closer – and has a 42mm objective (light-gathering front lens). As well as budget, consider what you will be using your optic for.
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