If you're new to telescopes, we strongly recommend you read the guide below before you buy any scope! This guide concentrates on visual observing, as opposed to astrophotography. If you’re new to astronomy, it’s smart to gain a thorough grounding in visual astronomy before you go to astrophotography. There's no one "perfect" telescope — just as there's no such thing as a perfect car. The telescope you want has two essentials: high-quality optics and a steady, smoothly working mount. But don't overlook portability and convenience — the best scope for you is the one you'll actually use. Focal Length - Longer or Shorter? I saw many 80mm and 70mm telescopes with 400mm, 500mm, 600mm or even 900mm focal length . Will that be the longer the better? Again, that's another trick in marketing. It's another use of magnification, it seems, the longer the higher magnification. Let me explain what will happen if you increase a 80mm aperture, with 400mm focal length refractory telescope to 600mm focal length: 600mm tube is 1.5 times longer than normal 400mm tube, that will make it even harder for travel and camping.Again, the longer the focal length, the harder to find the star, reference the finder scope part. 600mm will ask for a red dot finder, and better sturdy mount.For new astronomers, going with 300~400mm focal length will be best. You will find it easy to use. Again, A scope should be easy to use and travel: The scope that gets used regularly is always a better scope than the one that rarely or never gets used. Discover the universe this Christmas! Explore the Moon from home and give the gift of wonder! Product Details 80mm Super Large Aperture 80mm objective lens provides 31% brighter image and greater details than telescopes with 70mm objective lens.For new player, the most popular apertures in the market are: 70mm, 80mm. If your budget allows, go with 80 mm. From my personal experience, 70mm is for child use only, it's too tiny for adults. Red Dot Finder Scope Advantages: Easy to use, especially for new astronomersMuch easier to quickly point and shoot at anything that you can see with the naked eye. It's as simple as aiming a flash light at the moon.Much easier to align with the telescopeThey are simple to use, much lighter weight than a finder scope, and because you can see the entire sky when using them, they offer a very wide field of view Finder Scope Disadvantages: Harder to use for new astronomers. Even if you have seen the star with your naked eye, but it's difficult to find it in your finder scope due to the narrow view filed it provided.Trickier to align properly with the optical tube, especially for new astronomers.Cheap ones extremely hard to aim. APERTURE: A TELESCOPE'S MOST CRUCIAL SPECIFICATION Why 80 mm aperture is right choice for beginners? The more light gathering power it has, fainter objects and more detail in brighter objects. A smaller telescope that’s easily portable. Bigger and more expensive telescopes will allow you to see fainter objects but remember that the smaller the telescope, the easier it will be to transport, use and store when it's not in use. Smaller telescopes are usually cheaper too, so you don't have to break the bank to get a good view of the cosmos! The most important characteristic of a telescope is its aperture. Aperture simply refers to the diameter of the primary lens or mirror of the telescope, typically measured in millimeters or inches. The larger the aperture of the telescope, the more light gathering power it has, which allows you to see fainter objects and more detail in brighter objects. Does that mean you should rush out and buy the biggest telescope that you can afford? Not necessarily. A telescope that lets you see the faintest of objects isn’t any good if you don’t want to use it. Telescopes with big lenses or mirrors tend to be heavy and bulky. That will be harder to use for new astronomers. In this case, you’re much better off with a smaller telescope that’s easily portable.Besides, the cost of building a good lens rises very steeply as the aperture increases. So, check your budget. Different Occasions Where You Can Use in the Daily Life Objects You Can See with 80mm Refractor Telescope