2022-04-22
1. Look at the Magnifications
Many parents think that the higher the magnification of the telescope, the better the observation effect, but in fact, the magnification is inversely proportional to the size of the field of view
The lower the magnification, the larger the range seen, and the image will be brighter and more stable; the higher the magnification, the narrower the range seen, and the brightness of the image will be lower.
Also, high magnifications require high stability, and if you can't hold the telescope steady (or use a tripod) for long periods of time, the image will shake violently, causing eyestrain or nausea.
Therefore, a portable telescope under 10 times is the best choice for children.
2. Look at the weight
Since children observe by hand, the weight of the telescope should not be too heavy, otherwise it will be difficult to carry it, and the imaging effect will be unstable. For binoculars used by children aged 5 to 10, it is best to control the weight under 500 grams.
3. Look at the objective lens
Generally speaking, the larger the aperture of the objective lens, the larger the light-passing area, which helps the human eye to distinguish details and the higher the resolution. However, the large objective lens will increase the weight of the telescope, which is not conducive to children's use. In recent years, with the development of telescope manufacturing technology, many small objective lenses around 20mm can also provide good imaging effects.
3. Look at the objective lens
Generally speaking, the larger the aperture of the objective lens, the larger the light-passing area, which helps the human eye to distinguish details and the higher the resolution. However, the large objective lens will increase the weight of the telescope, which is not conducive to children's use. In recent years, with the development of telescope manufacturing technology, many small objective lenses around 20mm can also provide good imaging effects.
6. Look at the price
The quality of optical products is bound to be limited by price, so we do not recommend using telescopes that are too cheap.
But in the same way, we don't recommend high-priced telescopes that are several thousand or tens of thousands. After all, children's usage needs have not reached the professional level, and they will be more distressed if they are damaged.