What are the 100x optical zoom lenses?
At present, it was known that a single-lens reflex camera could be equipped with a 100x optical zoom lens. The Galaxy S20 Ultra was equipped with a 100x hybrid optical zoom function. The Galaxy S23 Ultra used two 10-million-pel telephoto lenses, which supported up to 10x optical zoom and 100x digital zoom. In addition, the phone's rear lens module supported 3.5x optical zoom, 10x hybrid zoom, and up to 100x digital zoom, but there was no mention of a 100x optical zoom lens. Read more exciting novels for free
What are the x60pro zoom lenses?
The Vivo X60 Pro's periscope ultra-telephoto lens was 8 million-pel, and with the help of an algorithm, it could achieve a super zoom of up to 60 times. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How much is a 100x optical zoom lens?
Different types of equipment had different prices for 100x zoom optical lenses. For example, the price of a 100x industrial camera electron microscope lens was 50 yuan per unit; in mobile phones, the actual starting price of a model with 100x zoom function was 6999 yuan due to the price drop; The price of outdoor 100x optical zoom mobile phone remote surveillance camera was 360 yuan; Hikvision's 4 million POE star network ball machine zoom surveillance camera was 1540 yuan. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Introduction to the classification of optical lenses from different angles
The optical lens could be categorized from the following different angles: 1. * * By Material **: - * * Glass lens **: composed of glass lenses. It has high requirements for molding technology, coating process, precision processing, etc. It has high light transmission and is not easy to age. It is mainly used in high-end imaging fields, such as single-lens reflex cameras, high-end scanner, high-end security video surveillance equipment, etc. - * * plastic lens **: It is mainly composed of plastic lenses. It has strong malleability and is easy to be made into an aspheric shape. It is also convenient for miniaturized processing and has low cost. It is widely used in the field of mobile phones and digital cameras, but the light transmission rate is lower than that of glass lenses. - * * Glass-plastic hybrid lens **: Composed of glass lens and plastic lens, combining the characteristics of the two, mainly used in surveillance cameras, vehicles and other fields. 2. * * By focal length **: - * * Short focal length lens **: suitable for close-up shots. Due to the small focal length, the image is not clear when shooting distant objects. - Medium focus lens: The image captured is close to the perspective seen by the human eye. - * * Telephoto lens **: The angle of view is small, but it can magnify distant objects. It is suitable for shooting distant objects, football games, wild animals, etc. 3. * * By field of view **: - * * Wide-angle lens **: The field of view is generally around 80 °. It is mainly used for shooting in general scenes. - * * Super wide-angle lens **: used to shoot scenes such as scenery, buildings, and group photos. - Fisheye lens: It is an extreme wide-angle lens with a field of view close to or even more than 180 °. The diameter of the lens is very short and bulges outward, similar to the eyes of a fish. It is widely used in scene monitoring, robot navigation, measurement, and other fields. 4. * * According to the change of focal length **: - * * Fixed focus lens **: - * * Fixed focal lens **: Mainly used in surveillance, micro-cameras, and vehicles. - * * Manual aperture circle focal lens **: Used for robot vision, road monitoring, etc. - * * Automatic Aperture Rifle Lenses **: They are widely used in places with complex lighting, such as surveillance cameras. - * * Zooming lens **: - * * Manual aperture zoom lens **. - * * Automatic aperture electric zoom lens **. - * * Electric triple variable lens (Aperture, focal length, and focus can all be changed)**. 5. * * By structure **: - * * Fixed aperture circle focal lens **. - * * Manual aperture circle focal lens **. - * * Automatic aperture circle focal lens **. - * * Manual zoom lens ** - * * Automatic zooming lens ** - * * Automatic aperture electric zoom lens **. - * * Electric triple-variable (Aperture, focal length, and focus can be changed) lens **. 6. * * By Origin **: - * * Japanese lens **: The color reproduction is better. - * * Germanic lens **: The layering is stronger. - [China Shot: The price is relatively low.] <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Price of Guiyang Electric Zoom-Changing Video Lenses
It was difficult to give an accurate answer to the price of an electric zoom lens. Its price was affected by many factors, such as functional requirements (whether it needed anti-shake, good anti-shock performance, stronger fog penetration ability, etc.), monitoring distance (ultra-long-distance monitoring would require a high price), etc. The price of different types and uses of electric zoom lenses varied greatly. For example, the telephoto electric zoom lens was used for general monitoring distance of about 1 - 20 kilometers. 50,000 - 100,000 yuan was normal, and more than 100,000 yuan was customized for special needs. If it was for ultra-long-distance monitoring, 1,000,000 yuan was normal. There were also some cheaper ones, such as 129.2 yuan, 2000 yuan, 8000 yuan and other electric zoom lenses at different prices, but the functions and application scenarios were different. Therefore, it was impossible to determine the price of the electric zooming video lens based on Guiyang alone. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Which is the best optical zoom surveillance camera for home use
Aiya, then the Hikvision C6C2K version was pretty good. Its optical zooming function was very practical and was considered outstanding in home surveillance. There was also the Dahua Le Orange TP7S, which also had a good optical zooming ability. The image quality was quite clear, and it could meet the daily household monitoring needs. Then there was the fluorite C8C. The optical zoom of this model was also very useful when monitoring the situation at home. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Puyi optical
Puyi Eyewear was a high-end eyewear brand founded in Hong Kong. Its price was higher because it was of very high quality, and the materials and craftsmanship used were very exquisite. Pu Yi glasses were designed, produced, and sold by brand manufacturers, so the price was much more expensive than ordinary glasses. Pu Yi Glasses cooperated with many internationally renowned brands to provide high-quality products and services, as well as a luxurious experience. Its stores provided a personalised service, selecting matching styles for each customer, and providing a series of shopping experiences and VIP services. Mr. Qiu Zijie, the founder of Puyi Glasses, shared his experience and ideas in brand management, product selection, and service content. Pu Yi Glasses was based on the personalisation and advanced optometrification and eye protection technology, providing perfect answers for every pair of eyes. Puyi Glasses had been in the market for 18 years and had become the leader of the luxury glasses market.
What does 'cartoon car zoom zoom zoom' mean?
It might just be a fun and playful way to describe a cartoon car moving very fast with the repetition of 'zoom'.
The hood of an optical lens
The hood was a device installed at the front of the camera lens, digital camera, and video camera. It was an important part of the lens optical system. Its main uses included: 1. ** Suppression of stray light **: avoid glare and improve image clarity and color reproduction. In different light positions such as backlighting, side backlighting, forward lighting, side lighting, lighting photography or night photography, it can prevent non-imaging light, surrounding scattered light or interference light from entering the lens, avoid fog and halo phenomena, and improve the color saturation and clarity of the picture. 2. ** Protect the lens **: When the lens is accidentally dropped, it can help reduce the damage caused by the fall; it can prevent fingers from accidentally touching the surface of the lens; it can also block the sand, rain, snow, etc. to a certain extent to prevent other things from directly touching the surface of the lens. In terms of usage, the hood in front of all the lenses had been carefully calculated by the manufacturer to help improve the quality of the shot. If the lens was equipped with a crystallizer, although the crystallizer and the hood had no similarities, the hood still needed to be installed. When rotating the crystallizer, the hood could be turned upside down and buckled on the lens, or temporarily removed and placed in the camera bag. It was not necessary to buy the original hood. Buying a hood that matched the lens 'caliber and angle of view could play its role. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The optical parameters on the lens
The following is some common optical parameters on the lens: 1. ** effective focal length (EFL)**: The distance from the center of the lens to the focal point. It could be divided into image focal length (the distance between the main surface of the image and the focal point of the image) and object focal length (the distance between the main surface of the object and the focal point of the object). If the focal length is too short, it will cause the field of view to be too large, causing distortion, difficulty in controlling the angle of the chief ray, low contrast, serious lens bending, difficulty in correcting the phase difference, and other problems. If the focal length is too long, the lens will be too long, which is not conducive to the miniaturized system. Moreover, the field of view is too small to meet the user's needs (FoV>60°). 2. ** Total length of lens (TL)**: It is divided into optical length (the distance between the first surface of the lens and the image surface) and mechanism length (the distance between the end of the lens barrel and the image surface). 3. ** Back focal length (BTL)**: The distance from the last side of the lens in the optical system to the image plane. 4. ** Front focal length (FFL)**: The distance from the first surface of the lens to the object surface in the optical system must be distinguished from the back focal length of the mechanism. 5. ** Mechanical back focal length (FTL/FFL)**: The distance from the last mechanical surface of the lens group to the image surface. 6. ** Field of View (FoV)**: The largest field of view that the camera can capture. It can be divided into diagonal field of view (FoV-D), horizontal field of view (FoV-H), and vertical field of view (FoV-V). The diagonal field of view is the largest, followed by the horizontal field of view, and the vertical field of view is the smallest. The so-called field of view refers to the diagonal field of view of the digital camera module. The size of the field of view was related to the focal length. Generally, the larger the field of view, the shorter the focal length. 7. ** Joules (F/NO.)**: It was the ratio of the effective focal length to the diameter of the pupil, which was used to determine the brightness of the lens. Under the premise of ensuring the same aperture, the shorter the focal length, the smaller the relative aperture should be. In general, the smaller the F/#, the larger the aperture. 8. Distortion: It is the off-axis phase difference. It is the height difference between the intersection point of the off-axis point and the main ray on the image plane and the ideal (paraxial-like) image plane. It is a function of the field of view and has nothing to do with the aperture. Distortion was divided into TV distortion and optical distortion. TV distortion was further divided into pillow type and cylinder type. Distortion is the image quality that users can easily feel. Different application scenarios have different requirements for distortion. For example, Optical-Distortion <3% is not easy to detect by the human eye, and the objective lens generally requires Optical-Distortion <2%. 9. ** relative illumination (Ri)**: The ratio of the central illumination to the peripheral illumination. If the contrast was too low, the center of the image would be bright and the surroundings would be dark (vignette phenomenon, commonly known as dark corners), which would also cause color distortion. The Ri is directly proportional to COS4 (semi-fov). Different semi-fov correspond to different theoretical values of the Ri. When the Ri<50%, the human eye can distinguish it. In serious cases, the four corners of the picture will be completely black. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
camera optical parameters
The optical parameters of the camera included the following aspects: 1. ** focal length **: This is a very important optical parameters of the lens. It refers to the distance from the main point of the lens to the focal point. It is an important performance indicator of the lens. The length of the focal length of the lens was inverse to the size of the image taken by the lens. That is, under the same object distance, the larger the focal length of the lens, the smaller the size of the image taken. Most industrial cameras use fixed-focus lenses in practical applications. Before choosing the focal length of the lens, you need to know the object distance of the on-site camera (the installation height of the camera lens from the surface of the measured object) and the field of view of the camera (the size of the characteristics of the measured object). In some applications involving the mixed inspection of objects at different heights, the use of a variable focal length lens would be considered. However, the variable focal length lens had two issues to consider: zooming speed and lens life. 2. ** Depth-of-field **: When the focal length of the lens is adjusted to a focal point, only the objects within a certain distance before and after the focal point are clearly visible. The objects outside this distance are blurred. This distance is the depth of field of the lens. 3. ** Pieces and resolution **: Pieces are the smallest unit of an image generated by the imaging chip, such as a 2-million-pel image. The resolution referred to the imaging ability of the CCD-or CMOS-chip. For example, the resolution of a 2-million-pel camera was 1626 x 1236, which meant that the camera had 1626 x 1236 rows in the X-axis direction. The total image taken was about 2 million pel. The detection accuracy could be simply evaluated by dividing the actual size of the image's X-axis by the number of X-axis dots. However, the final detection accuracy was affected by many factors, including the moving speed of the object being measured, light interference, the shape of the object, the contrast of the features, the computing power of the software, and so on. 4. ** Picture element size **: This is also an important optical parameters of the camera. 5. ** Target size of sensor **: It is the most concerned part of the camera's optical parameters. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>