Exploring The Cosmos: A Guide To Telescopes

Uses you need to know: Whether to watch sports games, outdoor travel, or bird watching, star watching, or balcony viewing for different purposes, the requirements for the volume and weight multiples of the telescope are not the same.

It is necessary to inform the psychological price: the same, price can be from a few yuan to yuan, or even more than double the product of similar specifications, the same price may also be relatively large, and only a certain price is the best recommendation.

It is necessary to believe that the experience of the old players is obtained by spending a lot of money and time.

If you don't want to pay tuition, the old players think you are just sitting in front of the computer, and the players must play hard. A long time and many products.

Don't think with high-level choices: I want to zoom, zoom, pocket, look at XX 10 kilometers away, etc. Desires must be real and realistic-basic physical habits and how high prices you can control, no dream Meaningless. You can also shop at Amazon with discount code NHS.

Don’t substitute intuition for thinking: For example, high magnification is better than low magnification, zoom is better than fixed magnification, military is better than civilian use, and imported brands are better than domestic brands.

Large sales are better than small sales, and big brands are better than niche brands. Wait, don't jump to conclusions, read more, ask more, and think.

Resist the temptation: The product introductions of many low-end Amoy brand telescopes boasted that there is nothing in the sky, and there is nothing on the ground.

 What does something like 8x30 mean?

The specifications of binoculars are often expressed by numbers like 8x30. 8 means that the telescope has 8 times magnification and can shorten the distance of the observation target by 8 times. For example, a target 800 meters away can be observed and imaged by an 8-times telescope.

The size is as large as the direct observation with the naked eye at a distance of 100 meters (affected by atmospheric interference and the quality of the telescope, the observation effect is not as good as the direct observation with the naked eye at a distance of 100 meters).

And 30 means that the objective lens of the telescope is 30 mm in diameter. The larger the number, the brighter and clearer the image, and the more comfortable the observation. However, the volume, weight, and price of the corresponding telescope will increase.

Why not recommend Zoom binoculars？

In the imagination of many newcomers, if the picture in the telescope can be large or small, it should be far and near, what a great thing! This is just a beautiful imagination! From an optical point of view, zoom products are difficult to make.

Friends who play photography know that the effect of fixed focus lenses is better than zoom lenses.

Low resolution, small field of view, and large distortion are common problems of zooming. Moreover, binoculars are linked by two sets of zoom eyepieces.

The mechanical structure is also very complicated, especially the positioning of the zoom binoculars is generally very low, and the cost control is demanding.

The material and precision of the parts are low, so the common problems of optics are more serious, the failure rate of the structure is also higher, and the optical axis is almost more or less offset. So we never recommend Zoom binoculars, nor do we sell Zoom binoculars.

For the zoom monocular, the structure is much simpler, there is no linkage problem, and there is no problem with the non-parallel optical axis, so even with a very cheap bird-watching mirror, the effect is acceptable.

What multiple is more suitable?

Generally speaking, holding binoculars 7-10 times is enough. Too high a multiple will cause many problems (large imaging jitter, small field of view, low brightness, etc.), and serious brands generally do not use high multiples!

Many Amoy brands like to mark dozens of times and hundreds of times, which are all deceptive. If you can mount a tripod, the multiple can be higher, the single tube can be 20-70 times, and the double tube can be 20-30 times.

Note that the magnification must be matched with the aperture. Simply increasing the magnification without increasing the aperture will result in poor imaging. Customers also buy at eBay discount code NHS.

 What caliber is better?

The larger the diameter of the telescope, the better the observation effect. But the more expensive it is, the larger the volume and the heavier the weight.

The smaller the diameter, the observation effect is almost the same, but it is small in size light in weight, and easy to carry.

Generally, you can choose a double tube with a diameter of 20-50 mm. If you use a tripod, you can choose a diameter of 50-100 mm.

 Choose Paul Prism or Roof Rrism Telescope

The advantage of the Paul Prism telescope is its low price and good effect. However, the volume and weight are about 40% larger than the roof prism telescope of the same specification.

The nearest observation distance is far, and it is not suitable for bird watching and other occasions that require close observation.

The advantages of roof prism telescopes are their small size and weight, good portability, short observation distance, and suitability for bird watching. However, with high technical requirements, cheap models cannot obtain excellent picture quality.

Generally speaking, when the budget is less than 300 RMB the volume and close-range observation are particularly emphasized.

The Paul telescope is preferred. If the budget exceeds 300 RMB, the roof prism telescope can be considered. The budget is more than 1000, and the roof prism telescope is mainly recommended.

Binocular or Monocular?

In terms of observation effects, the binoculars of the same specification have much better effects than the monoculars. The image is rich in three-dimensionality, the resolution is higher, the imaging is bright, and the observation is more comfortable.

However, the volume and weight of the monoculars are more than half smaller than that of the binoculars of the same specifications. The single tube makes it easier to achieve a high magnification zoom, such as a bird-watching mirror.

Therefore, for handheld telescopes, binoculars are recommended for better results, and monoculars are recommended for lighter volumes.

If you can use a tripod and want to obtain a high-magnification zoom effect, a monocular bird-watching mirror is recommended. Buyers also purchase at aura accessories discount code NHS.

 How Many Ways to Express The Field of View?

The common methods include degrees, *** meters/1000 meters, *** yards/1000 inches, etc. Take 125 meters/1000 meters as an example.

It means that when a telescope is used to observe a target 1000 meters away. The range that can be seen is a circular area with a diameter of 125 meters.

In addition, take an 8x telescope with an actual field of view of 7.5 degrees as an example. Although the actual observation range is only 7.5 degrees because the telescope has an 8x magnification.

The apparent field of view is 7.5x8=60 degrees, and it does not feel cramped for observation.

 A telescope with an apparent field of view of more than 60 degrees can be regarded as a wide-angle telescope.