Knowledge

Introduction A laser rangefinder is a device that uses a laser beam to determine the distance to an object. It is commonly used in a variety of applications, such as hunting, golfing, and military ope

Thermal imaging cameras are mainly used in R&D or industrial inspection and equipment maintenance. They are also widely used in fire protection, night vision and security. The functions of thermal

1. Blind pursuit of high targets Due to a lack of understanding of the product, some buyers blindly pursue high-index parameters and blindly purchase products with high sales. However, in fact, the pu

In nature, all objects with a temperature higher than absolute zero (-273.15°C) radiate infrared rays all the time. The physical essence of infrared radiation is thermal radiation, which is also a

When purchasing a night vision device, you should pay attention to the performance parameters and technical indicators of the night vision device. If you want to buy a good night vision device, you mu

In addition to the consideration of the birdwatching telescope brand, another important consideration is the choice of birdwatching eyepieces. The most common problem is the image circle. The so-calle

Wide-angle birding goggles have three advantages: 1. The birdwatching scope can zoom, that is, if the distance between the bird and the observer changes. 2. The focus can be adjusted to prevent inaccu

1. Different compositions (1) Bird-watching scope: It is a monocular telescope for watching birds. (2) Telescope: A telescope is an optical instrument that uses lenses or mirrors and other optical dev

Insufficient battery power, operation error, target object is too far away or blurry. 1. Check whether the battery power of the birdwatching goggle is sufficient. The battery power is low and can be r

Advantages of monoculars include: 1. More lightweight: Compared with binoculars, monocular telescopes are more compact and easier to carry. 2. Easier focusing: The focusing operation of a monocular te

Advantages of binoculars include: 1. More comfortable: Binoculars correspond to two eyes respectively, allowing users to observe objects more comfortably. 2. The field of view is more realistic: Since

To adjust the optical axis of binoculars, please refer to the following steps: 1. Confirm that the base axis of the telescope is in good condition, adjust the right diopter adjustment ring to the midd