The fisheye lens was an ultra-wide-angle lens with a focal length of about 6 - 16mm and a viewing angle close to or equal to 180°. It was named after its front lens that protruded toward the front of the lens in a parabola shape, similar to a fisheye. Using a fisheye lens in a movie could create a unique visual effect. In terms of perspective, its ultra-wide perspective could capture a very wide range of scenes. It could bring a strong visual impact to the audience in the performance of large scenes such as grand buildings, vast natural scenery, or large scenes with a large number of people. It made the audience feel as if they were in the scene and had an immersive panoramic feeling. From the perspective of image distortion, the fisheye lens would bring about obvious distortion effects. This kind of distortion had a special meaning in the movie narrative. It could be used to express a special atmosphere or character state. For example, in the movie " Village Play," the photographer Shao Dan used a fisheye lens to describe absurd events. This distortion effect might cause exaggerated changes in the shape of characters or objects, thereby emphasizing the sense of absurdity, unrealism, or complex emotions such as distortion and confusion in the character's heart. In terms of composition, due to its unique perspective and distortion, it would change the conventional composition method. The principles of balance and symmetries that were followed in traditional composition would be re-shaped under the fisheye lens. The layout of the elements in the picture would produce new visual relationships due to the characteristics of the lens. The director could use this characteristic to guide the audience's gaze, highlight the key elements he wanted to express, or hint at the special relationship between the characters. Read more exciting novels for free
Fisheye lenses could be used in drones. For example, LAOWa has a 4mm F2.8 210° circular fun fisheye lens that can be used for drone aerial photography, suitable for a variety of camera mounts such as Fuji micro-single X mount, Sony micro-single E mount, etc.; Chuangan Optoelectronics developed a 0.7mm, F2.8, 210° M8 fisheye lens, which was successfully applied to the visual obstacle avoidance of drones. By installing this lens in four directions, it could achieve no dead angle image acquisition. The image could be processed to give movement instructions to bypass obstacles. It could cruise automatically with the satellite positioning system and cooperate with the ground station for image big data analysis. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There were many brands that supplied 360-degree fisheye cameras. For example, Joan had a 360-degree panoramic fisheye camera, and Puwei had a panoramic 360-degree network HD camera, a smart house-keeping remote Wi-Fi surveillance VR panoramic fisheye camera, and so on. These cameras usually had a panoramic surveillance function, which could achieve large-scale surveillance without blind spots. Some of them also had a variety of image display modes, video security encryption, and other functions. Different products might have differences in terms of price, image quality, and functional details. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The fisheye lens had its unique performance and application in night scenes. The fisheye lens had a wide angle of view, some of which could reach 180 degrees or even more, allowing it to capture a very wide scene when shooting at night. The images captured by the camera had a distortion feature. This feature could turn a normal straight line into a curve, resulting in interesting visual effects. For example, the city at night was shot into an effect similar to "Earth's night scene." However, using a fisheye lens to capture night scenes also had some challenges. For example, some fisheye lenses had a fixed aperture (such as the Rock Star 10mmF8 fisheye lens). If you didn't have a tripod to help you shoot at night, increasing the USB to ensure enough light would bring more noise. In order to overcome the problem of shooting at night and to bring out the creative effect of the fisheye lens, some equipment used a variety of technical means. For example, the iQOO 9 Pro's 50-million-pel 150-degree fish-eye ultra-wide angle lens had excellent performance in dark light imaging. Its main camera had a large base pan head and high resolution, which helped capture rich details. The sensor had excellent dark light sensitivity. The lens used special coating and various algorithms to suppress noise, improve ghostly shadows and glare. It also provided special fish-eye effect modes such as crystal balls and asteroids, adding creativity and fun to shooting night scenes. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The following is a comparison between a fisheye lens selfie and a normal selfie: * * 1. Image Range ** 1. * * Fisheye lens ** - The fisheye lens could capture a very wide angle of view. For example, some mobile phone fisheye lenses could reach a 198 ° angle of view, allowing more background to be included in the picture. Compared to ordinary selfies, it could show a wider surrounding environment, which was more advantageous when taking selfies with many people or when you wanted to show the surrounding scene. 2. * * Normal selfie ** - Ordinary selfies usually had a narrow angle of view, focusing mainly on the face of the person and a small area near it. Generally, it could only accommodate a small number of background elements. * * 2. Image Distortion Effect ** 1. * * Fisheye lens ** - The fisheye lens would produce a noticeable distortion effect. This distortion would cause the center of the image to be magnified, while the edges would have a strong stretch and distortion. For example, the face of a character might look normal in the center of the picture, but the facial features or body parts near the edge of the picture would be elongated and deformed, looking like a "big Japanese melon"(more obvious in a photo). However, if this kind of distortion was used properly, it could also create interesting, unique, and exaggerated visual effects. For example, it could make funny expressions or make the scene look more dramatic. 2. * * Normal selfie ** - Ordinary selfies basically did not have such a special distortion effect. The picture was relatively neat, and the character image was closer to the normal visual perception. * * 3, visual impact ** 1. * * Fisheye lens ** - Due to its special distortion and wide viewing angle, the photos taken with the fisheye lens often had a strong visual impact. The elements in the photo were exaggerated and easily attracted the attention of the audience. It was suitable for creating creative and artistic selfies or for attracting attention on social media. 2. * * Normal selfie ** - The visual impact of ordinary selfies was relatively weak, and it was more important to present the appearance and expression of the character. * * 4. The degree of prominence of the subject ** 1. * * Fisheye lens ** - Although the fisheye lens had a wide field of view, the center of the image was still relatively prominent. However, due to the distortion and richness of the surrounding environment, this outstanding effect was not as direct as ordinary selfies. When taking selfies, if you wanted to highlight yourself and show the uniqueness of the surrounding environment, a fisheye lens could be an option. 2. * * Normal selfie ** - Ordinary selfies usually placed the main body of the character directly in the center of the picture, using methods such as blurring the background (if there was one) to highlight the character itself and reduce the interference of the background. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Fisheye app included the Fisheye app, which was a unique mobile camera app. It had a powerful function, version 1.05, and a size of 1.86MB. It had a variety of functions, such as a variety of effects to easily create large-sized photos, a time-lapse function, and a rich material library. When editing photos, it was very convenient to cut, add text, or filter. There were also simulated 170-degree wide-angle fisheye lenses, four professional fisheye lenses, and dozens of LOMO effects. It allows users to experience different shooting fun and take a variety of styles of photos. In addition, when the fisheye camera system was built at the Northern Corona Observatory, Sharpcap software was selected to automatically capture fisheye images. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Currently, there were some fish-eye lens related software, such as the POCO camera, which was a popular mobile phone camera tool launched by the POCO.TN original photo community for mobile phone users. It had a built-in fish-eye camera lens and many other special lenses, as well as excellent filter, extreme light effects, and other functions. There was also the Fisheye lens app, which was a special effects camera software. The user could use the fisheye filter to capture the world in the eyes of the fish. There were eight types of fisheye lens to choose from, and a large number of filter to use at will. It also provided 28 flexible layout, ultra-fast selfie function, 90 color filter, etc. You could choose according to your needs, but it was difficult to directly determine which software was better. It depended on the user's specific needs in terms of functions and effects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Pentax had full-frame fisheye lenses, such as the Pentax DA Fish-Eye 10 - 17mm f/3.5 - 4.5ED fisheye lens (zoom), which had an attention index of 100 and a price of 2889 yuan. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fisheye lens panoramic spherical stitching is a technique that stitches images taken by multiple fisheye lenses to form a panoramic spherical image. First, he had to choose the right fisheye lens. This included choosing the appropriate imaging mode (such as horizontal or vertical internal cut) according to the size of the chip and the application field to effectively use the effective pixelation of the lens or chip. It was also necessary to determine the number of lenses according to the angle required by the application. For example, for 360° surround view, two fisheye lenses larger than 180° could be selected for stitching. Then, he captured images from multiple fisheye lenses. He had to ensure that there was a certain overlap between adjacent images so that he could perform subsequent stitching. Then, the image captured by each fisheye lens was corrected and converted into a planar image. The correction algorithm could adopt the polar line correction method or the spherical projection method. The epipolar line correction method was to project the corresponding feature points in each image onto a horizontal line. Before using this method, it was usually necessary to use some algorithm (such as SIFT, Surf, ORB, etc.) to extract the feature points from each image. Finally, the corrected images were stitched together by a special software algorithm to obtain a panoramic spherical image. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Nikon AF-S Fisheye Nikkor 8 - 15mm f/3.5 - 4.5E ED lens had many advantages. In the FX-format, when the zooming position is set to 8mm, the vertical and horizontal (circular fisheye) shooting angles are about 180°; When the zooming position is close to but not up to 15mm (the shooting angle at the focal length of 15mm is slightly smaller, about 175°), the shooting angle in the diagonal direction (the full-picture fisheye image) is about 180°, and the shooting angle in the diagonal direction of the full-picture fisheye image is about 180° (the shooting angle of the full-picture image is gradually reduced as the zooming lens ratio increases). Its optical design technology enabled it to provide high-resolution images throughout the entire screen range, including the largest aperture or aperture reduction. It also achieved good point light source restoration ability up to the edge of the screen, providing two fisheye effects of circular and full-screen, providing more shooting possibilities for creative work. In addition, there was also a Tuli AF10 - 17mm f/3.5 - 4.5 (Nikon) fisheye lens to choose from. The lens was used as a fisheye lens (zoom). The lens mount was the Nikon F mount. The focal length range was 10 - 17mm. The lens structure was 8 groups of 10 pieces. The maximum aperture was F3.5 - 4.5, the minimum aperture was F22, and the closest focusing distance was 0.14m. The lens frame was the Abyss frame lens. There were also 8mm F3.5 Canon and Nikon fisheye lenses, but there were differences in price and performance. Which one was better depended on factors such as shooting needs and budget. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Here are a few fisheye lenses that can be used to shoot stars: 1. ** SIMAHA 15mm F1.4 DG GN Diagonal Fisheye| Art Shot ** - ** Pros **: - ** Large Aperture and Image Quality **: The aperture can be set to F1.4, and at an USB of 2000, a clear and detailed starry sky image can be captured. The quality of the image was very high, and the control of the center image and the edge effect was excellent. Whether it was a single shot or multiple shots, the effect was very good. For example, shooting the Milky Way Bridge was very easy. - ** Easy to focus **: You can use the camera's zooming function to view the screen. You can choose the brightest star to manually focus until the star shows the smallest spot on the screen. Basically, it won't go out of focus. - [Unique angle of view: The camera has a 180° angle of view, which can capture a very wide starry sky.] - ** Disadvantages **: Weight of 1360g, relatively heavy and takes up space. 2. ** Tuli SSS 8mm F2.8 Fisheye Lenses ** - ** Pros **: - ** Light **: It's compact and light, weighing only 280 grams. The metal mirror body and the matte spray feel are good. - ** Better image quality **: The internal design uses 9 sets of 11 lenses. The front lens has a multi-layer coating to suppress the influence of the phase difference. Although the edge quality was a little soft, within the F/4 - F/10 aperture range, the center and edge quality were highly uniform, with rich details and natural colors. The 180-degree fish-eye view was suitable for shooting the vast starry sky. - ** Multi-function **: The closest focusing distance is 0.1 meters. It can be used to shoot some still life close-ups. The beautiful blurring effect outside the focus is not bad. - ** Disadvantages **: Backlight shooting will cause purple edge dispersion, but it can be avoided by adjusting the composition. Manual focus is slightly inconvenient. 3. ** Inscription Craftsman 11mmF2.8 Fisheye lens ** - ** Pros **: The aperture is fully open, and the sharpness is first-class in low light. The edge quality is good, and the glare control is even better than the original red circle. The price was relatively low (the official price was 1450 yuan, but the actual price was 950 yuan), and the cost-performance ratio was high. - ** Disadvantages **: No obvious shortcomings were mentioned, but the aperture was slightly smaller than that of the SIGMA-lens. In addition to using the fisheye lens, you can also use the Apple phone to shoot the starry sky. You can turn on the camera, click on the small triangle in the middle of the top, then click on the night mode in the lower left corner, and pull the parameters to the lowest. The phone's stable shutter can reach 30 seconds (If it shows 10 seconds, it can be changed to 30 seconds after standing still). You can also turn on the camera, click on the half-moon icon below, stretch it to 30 seconds, and then zoom in to take a photo. If you use a mobile phone to shoot, it is recommended to use a stabiliser. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>