![]() There are also some scopes that are specifically designed for traveling (see the Best Telescope for Camping below) that are lightweight and can be easily transported to a remote location. Ideally, you’ll want a scope with as much aperture as possible weighing as little as possible. Consider its weight – do you want a telescope you can take camping or to a dark location? Then you’ll need to consider its weight, as this will have a huge impact on its portability.For example, a small 70mm telescope has a maximum useful magnification of about 140x (70mm x 2) or 138x (2.76 inches x 50.) ![]() Opinions vary on exactly how the maximum is defined, but a quick calculation involves taking the aperture in millimeters and doubling it, or taking the aperture in inches and multiplying it by 50. As such, every telescope has a maximum useful magnification. It’s also harder to focus at a high magnification, and both these factors combine to produce nothing more than a blur. There comes a point where increasing the magnification is simply pointless because your scope is incapable of gathering any more light. Magnification isn’t everything – as mentioned earlier, almost any telescope is capable of magnifying 1,000x, but unless your scope has the aperture to back it up, you won’t be seeing much of anything. ![]() Large aperture telescopes are often used for observing galaxies and planetary nebulae because those objects are often faint and small. The more light it gathers, the fainter the objects you can see and the more detail you can see. The larger the aperture, the more light it can gather. The aperture is the diameter of the lens or mirror the telescope uses to gather light.
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