Smart phone zoom lensDue to the size limitation of the smartphone, it was difficult to set up an optical zoom lens that could be extended outwards. The current solution was to use the main camera focal length of 25mm-28mm as the benchmark, and use a telephoto lens to obtain a disguised " optical zoom " ability.
The telephoto lens in the smartphone was not a lens that relied on lens displacement to achieve image zooming in traditional cameras. Instead, it was a " fixed-focus lens " with a focal length ranging from 50mm to 240mm. The relative focal length of the main camera was magnified by 2X -10X. For example, a 50mm focal length telephoto lens could achieve an equivalent 2X optical zoom, and a 240mm focal length lens could achieve an equivalent 10X optical zoom.
The optical zoom of a smartphone relied on "switching lenses" to achieve. For example, in the Xiaomi 10 Youth version, different focal lengths were handled by different lenses. When it reached 5X mode, it switched to the periscope telephoto lens for equivalent 5X optical zoom. At other times, different lenses would perform corresponding digital or hybrid zooming.
For the periscope telephoto lens, the general 5X telephoto lens needed to adopt a periscope structure, with the LCD sensor and lens arranged horizontally. The periscope lens of some mobile phones had a special design. For example, the periscope telephoto lens of the Huawei P40 Pro+ had three sets of prism. When taking pictures, there were five light path reflections, doubling the focal length and obtaining a 240mm equivalent 10X optical zoom.
In addition, there was also a direction for the evolution of the zoom telephoto lens. The 10 lenses in the early ASUS ZenFone Zoom lens module could achieve 1X - 3X true optical zooming through motor displacement;Vivo's APEX2020 concept phone, the internal lens group of the periscope telephoto lens could be moved according to the camera APP interface to achieve 5X - 7.5X continuous optical zooming. The thinnest periscopic continuous zoom module developed by Orphie Light. The lens consists of three groups of " 1GMO6P ", with an aperture of 3.1 - 5.1 and an equivalent focal length of 85mm-170mm. It can achieve 3X -7X continuous optical zoom. The image zooming effect brought by lens displacement is better than digital zoom.
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Monitor the parameters of the electric zoom lensThe following are some of the parameters that might be involved in monitoring the power zoom lens:
1. ** Focus Range **:
- For example, 10 - 525mm, 10 - 150mm, 10 - 230mm, etc. Different focal lengths determined the zooming ability of the lens and the applicable monitoring distance and viewing angle. For example, the focal length of a telephoto electric lens could range from tens of millimeters to hundreds of millimeters or even higher for long-distance supervision; the focal length of a wide-angle lens was shorter, and the monitoring angle was wider but closer.
2. ** optical zooming factor **: For example, there are 52x and so on. The zooming factor reflects the zooming ability of the lens within the focal length range.
3. ** Pieces **: Some of the lenses are broadcast grade with 2 million pixels. Pieces affect the clarity and image quality of the image.
4. ** Automatic focus function **: Some lenses have an automatic focus function, which helps to quickly obtain clear images at different distances.
5. ** Fog Penetration Function **: It can be used in smoggy weather to improve the visibility of the monitoring screen.
6. ** Day and night function (infrared function)**: Can be used in different lighting conditions during the day and night. It can provide fine black-and-white images at night.
7. ** Automatic temperature compensation function **: To ensure that the lens works normally in different temperature environments.
8. ** Type of serial port communication **: For example, the serial port communication of the USB 485/USB 422 is used to independently control the lens.
9. ** Adaptability to the environment **: Able to work normally from-40 ° C to 70° C, and can adapt to various environmental temperatures.
10. ** Lowest Illumination **: If there is a lens, the minimum illumination is 0.002Lux(color mode), 0.0002Lux(black and white mode), and 0Lux(infrared light on). This parameters reflect the imaging ability of the lens in low-light environments.
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Cell phone plus zoom lens photoThere were many advantages and features to taking photos with a mobile phone and a zoom lens. For example, there was a mobile phone zoom macro lens with a magnifying power of 1.1 - 2.8x, an effective focusing distance of 22 - 82mm, a field of view of 88° at 22mm, and 72° at 82mm. The lens structure was three pieces in two groups, weighing only 24g and was small and portable. This lens solved some of the drawbacks of ordinary macro lenses, such as the difficulty of controlling the shooting distance (ordinary mobile phone macro shooting distance is short, and its effective focusing distance is 22 - 82mm), the depth of field is easy to shoot blurred (it can adjust the depth of field by adjusting the zoom ring, even if there is a deviation in the distance, it can be manually adjusted to become clear), and it can achieve a larger zooming effect (from 1.1x to 2.8x). In addition, some mobile phones came with lenses with different magnifying powers to achieve zooming. For example, the Vivo X60 Pro camera interface, 0.6x was a super wide-angle lens, 1x was the main lens, 2x was a telephoto lens, and 5x was a super telephoto lens. Among them, 0.6, 1x, 2x, and 5x were optical zooming, and other magnifying powers were mostly digital zooming. Different magnifying powers had different image quality, and different brands and models of mobile phone lens had different focal length settings. For example, the three lenses of the iPhone 12 Promax were 0.5, 1, and 2.5 times respectively. The Galaxy Z Flip6 could use the auto-zoom composition function to automatically detect objects through its vertical free shooting system and zoom in or out to take photos with suitable scene composition.
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Large aperture anti-shake zoom lens recommendedHere are some recommendations for large aperture anti-shake zoom lenses:
- Tamron 17 - 70mm F/2.8 Di III - A VC-RXD anti-shake large aperture micro-lens (E-port exclusive to the Sony-APS- C). It had a large aperture of F/2.8 and anti-shake function. It was suitable for shooting scenes such as scenery, portraits, and travel.
- Canon's EF70 - 200mm f/2.8L IS II USM lens had a large aperture of F2.8, equipped with level 4 IS anti-shake and USM ultrasonic motor. The price was 11880 yuan.
- The Tenglong 35 - 150mm F2 - 2.8 lens, under the large zooming range, included many classic focal lengths. The aperture could reach up to F2, and the floating range was small. The longest focal length had a maximum aperture of F2.8.
- It was a 60 - 600mm f4.5 - 6.3 lens. Although the quality of the image could not be too high, the zoom ratio was 10x, and the anti-shake stability was level 6.
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Analysis of the use of this killer's camera lensLéon: The Assassin's use of the camera was very unique:
1. ** The use of the opening scene **
- The opening scene was quickly edited, followed by scenes and echoes to arouse the audience's curiosity. The quick editing made the scenes of the streets, pedestrians, and vehicles switch quickly, creating a tense rhythm that made the audience feel as if they were in an emergency. The use of chase shots further increased the tension and pulled the audience into the tense scene. In this atmosphere, the main character, Leon, was introduced. He agilely passed through the crowd and avoided obstacles, making the audience curious about him. They wanted to understand his identity, personality, and background in depth, laying the foundation for the development of the plot. It also showed the director's proficiency in the language of the camera and his keen grasp of the audience's emotional resonance.
2. ** Choice of perspective **
- [Close-up shot: Close-up shots are often used to show the emotions and inner world of the protagonist, Leon.] This close-up allowed the audience to almost feel Leon's emotions, such as the sadness, anger, or indifference in his eyes, vividly conveyed through the lens, allowing the audience to better understand and resonate with Leon's emotional experience, establishing an emotional connection.
- ** Aerial Shot **: Aerial Shot puts the audience in a higher perspective than the character, allowing the audience to understand the character's situation and emotions more comprehensively. The audience could clearly see the subtle changes in the character's expression, movements, and posture, and then be guided into the character's inner world, deeply understanding and feeling the character's emotional experience.
3. ** Use of other shots **
- The opening scene of the film showed the bustling city background of the story, and then the camera moved from big to small to the dialogue between the main characters Leon and Tony. The characters 'facial expressions were shown through close-up shots, and the dim light created a mysterious and tense atmosphere. In addition, there were many scenes in the film that used the eyes of the protagonist as the camera lens, such as the scene where Leon aimed at killing people, and the scene where Leon fell from his perspective when he was killed by the villain. This made the audience more integrated into the plot and made the scenes more exciting and varied.
Watching Léon: The Assassin wasn't satisfying enough. Everyone is welcome to click to read the novel!
Analysis of Genshin Impact Weight Gain FanficWell, in a Genshin Impact weight gain fanfic, the author often has to be creative with the game's lore. Since the game has a set aesthetic and world - building, fitting in a concept like weight gain can be challenging. They might take a character like Paimon, who is always hungry, and use that as a starting point. The fanfic could then show how Paimon's eating habits lead to gradual weight gain and how it affects her ability to float or her relationships with other characters.
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2024-11-27 10:12
What are some cute zoom zoom cartoons?Well, 'Peppa Pig' is one such cartoon. It has charming visuals and simple yet engaging storylines. Another could be 'Dora the Explorer' with its colorful world and friendly characters.
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2025-05-15 17:29