1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Some telescopes are better for terrestrial use, like birdwatching, and some are better for astronomy. Some work fine for both. Generally speaking, large aperture size is much less important for terrestrial viewing than for astronomy. Portability may be much more important if you're primarily doing terrestrial viewing.

Some scopes (usually the hybrids such as the Cassegrains) are both small enough to be portable and have a large enough aperture to use for astronomy. These are usually the ones you'll want if you need a dual- purpose scope.

If you want to use your scope for photography, make sure it's designed to allow attachment to your camera. For astrophotography where long exposures are necessary, you'll also need an equatorial mount. (Some altazimuth mounts with built-in computers can also be used for photography.)