Is it effective to connect a mobile phone to a telephoto lens? What do you recommend?

Generally, telephoto lenses used in mobile phones are fixed with metal brackets, which are connected with tripods for fixing. The telephoto lens is heavy and will shake when held, so a tripod is essential. In terms of price, X Bao and X Dongshang range from 10 yuan to nearly 1,000 yuan. I think if it's not a deep fever, after all, it's just a plug-in product of mobile phone photography, and a more suitable mobile phone lens can be found within 200 yuan. If there is no shortage of money, there are several kinds of lenses with more than 900 in foreign countries. The telephoto multiples are 12x, 18x, 20x.

Different multiples, different viewing distances, the higher the multiple, the farther you can see. Of course, the heavier the weight (generally about100g), the more complicated the operation. Generally, you can see 3- 1500 meters at 12x, which is enough. If it is too heavy, it is not portable enough. You can usually watch the moon, watch birds and fish live.

Regarding the price, such as orea telephoto lens 120- 180 yuan, the effect is that almost all telephoto lenses on the market are as standard as Hong Kong films in the 1990s, which is much worse than the original camera of mobile phones, because the cmos of mobile phones is too small.

If the required effect is high, special monocular telescopes (ranging from 300 to 500) and astronomical telescopes (ranging from 800 to 3000) are needed, but the weight is heavier, and some of them reach 300- 1000 grams, which is more complicated and troublesome to fix on mobile phones. It is best to observe them directly with the naked eye.