How to choose a telescope, how to choose a telescope

1. There are actually many kinds of telescopes, and the telescopes for observing the scenery can be divided into handheld and desktop (tripod) high times. The hand-held one can be carried with you, and you can see it by holding it, and the desktop one must be on a tripod and cannot be observed by hand.

2. If it is handheld, whether it is a civilian or military telescope, there is a standard optimal multiples range for hand-held, that is, 7 10 times, among which, the most commonly used in the military is 7 times and 8 times. The so-called 20 times, 30 times, 50 times, and so on are all deceptive, not even regular products. People who don't understand can be easily misled.

And if it is a tabletop type, this multiplier range is relatively large because there is a tripod. But for observing the scenery on the ground, it is generally the highest and the highest, and in my experience, when looking at the scenery on the ground, the image quality begins to decline significantly after more than 25 times, because the air begins to boil, and when it starts at 35 times, it is meaningless.

3. A good telescope, that is, you choose a more formal product at the price you want to invest.

4. Regarding the identification of telescopes, as an ordinary person, the simplest is probably from some details, such as whether the merchant's propaganda is regular, whether it is honest, and whether the product has some performance that needs to be avoided, such as "Japanese cherry blossoms", "night vision infrared", "shimmer", "Russia" and other deceptive propaganda, or a very risky direction that should not be considered. Wait a minute. In this regard, you can take a look at Popular Optics, which has some basic knowledge introduction, which is relatively comprehensive.

A telescope is an optical instrument that uses lenses or mirrors and other optical devices to observe distant objects. Light rays that are refracted through a lens or reflected by a concave mirror allow them to enter a small hole and converge for imagery, and then pass through a magnifying eyepiece to be seen. Also known as "clairvoyant mirror".

Let me share with you how to choose a telescope.

1. Optical quality and lightweight shape are often contradictory, and if you want both, you need to significantly increase your budget.

2. Each size and type of telescope has a specific environment suitable for its use in order to achieve perfect results, and no telescope is omnipotent.

3. The volume of the roof prism telescope is the smallest among telescopes of the same specification, but the optical quality is often not as good as that of the porro prism telescope.

4. The quality of the telescope depends on many external factors, such as cost, profit, market strategy, etc., and the multiple of the telescope has little to do with it.

5. The imaging effect of the telescope depends on many factors, and the magnification is only one of many factors, and it is not advisable to blindly pursue the magnification.

6. The possibility of military telescopes being fakes is extremely high, and regular military telescopes are basically black, and they are expensive.

7. Do not buy binoculars with a wide range of zoom, there are many problems such as small field of view, serious imaging distortion, and easy deviation of the optical axis.

8. You must know that you get what you pay for, and the actual effect of a telescope with the same specifications and parameters may be very different, of course, it will also be thousands of miles apart.

9. Try not to buy a red film telescope, it is only suitable for high reflection environments such as ice and snow, and the imaging in the general environment is dim and the color cast is serious.

10. There have never been any infrared night vision telescopes, but some specifications of telescopes such as 7x50 work well in low-light environments!

1.Ensure that the telescope is stored in a ventilated, dry and clean place to prevent mildew, and if possible, put desiccant around the telescope and replace it frequently.

2.If you need to clean the mirror, you should use absorbent cotton to occupy a little alcohol, wipe it from the center of the mirror in one direction to the edge of the mirror, and constantly replace the absorbent cotton ball until it is clean.

3.Telescopes are precision instruments, so do not smash, press or do other strenuous movements on the telescope.

4.Non-professionals should not attempt to disassemble the telescope and clean the inside of the telescope by themselves.

5.Please rush to collide with sharp objects such as nails, needles, etc.