What are the types and differences of industrial camera lenses?
In the field of industrial automaton, industrial lenses can be divided into the following types according to different application needs, each type has its own unique functions and characteristics: 1. ** Zooming lens **: This is an industrial lens that can change the magnifying power. It is commonly used in machine vision systems to detect objects of different sizes or to magnify images at different magnifying powers. The magnifying power can be adjusted as needed to meet different detection needs. 2. ** Multicentric lens **: It is a special industrial lens that can eliminate the error caused by the change in the distance between the lens and the object being measured. It can ensure that within a certain field of view, no matter how the distance between the object and the lens changes, a clear image can be obtained. It is often used to detect the size of the work piece. 3. ** Fixed focus industrial lens **: Its focal length is fixed and cannot be adjusted. It usually has a high resolution and a fast acquisition speed. It is suitable for machine vision systems that require high image clarity. The advantages are moderate price and stable performance, but the scope of application is relatively narrow. 4. ** Line scan lens **: Commonly used to inspect high-speed or continuous materials (such as metal, plastic, paper, fiber, etc.). It can achieve high-speed and high-precision inspection. Read more exciting novels for free
Calculating the Magnification of Industrial Lenses
In industrial lenses, optical magnification usually refers to the vertical axis magnification, which is the ratio of the size of the image to the object. The calculation method is: optical magnification = y'/y = camera chip size/field of view. For example, the known camera chip was 2/3 inches (8.8mm*6.6mm), and the field of view was 10mm * 8mm. If the long side is used for calculation, the magnifying power = 8.8mm/10mm = 0.88x; if the short side is used for calculation, the magnifying power = 6.6mm/8mm = 0.825x; at this time, the smaller magnifying power of 0.825x should be used as the optical magnifying power of the lens to be selected. Otherwise, the short-side field of view cannot meet the requirements (if 0.88x is used, the short-side field of view = 6.6mm/0.88x = 7.5mm<8mm). In actual projects, if the field of view was close to a square or a circle, the short side would be used for calculation; if the field of view was a long strip, the long side would be used for calculation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The price of camera lenses in Langfang
In the reference materials, there was a quote for a camera in Langfang, Hebei Province, which was priced at 90 - 100 yuan, but it was not clear whether the price was for the camera lens or the whole camera, so it was impossible to accurately know the specific price of the camera lens in Langfang. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The price of recycled camera lenses
The recycling price of camera lenses was affected by many factors. The recycling price of different brands and models of lenses varied. For example, the original Nikon 18 - 200 lens, second-hand merchants usually sold it for about 3500 yuan, and the recycling price was generally no less than 3000 yuan. Canon's new model, the Canon Eos R5, was priced at 28,000 yuan, with a second-hand recycling price of 18,000 - 22,000 yuan; Nikon's new model, the Z6 II, was priced at 16,000 yuan, with a second-hand recycling price of 10,000 - 12,500 yuan; and the new model, the SonyA7 III, was priced at 12,000 yuan, with a second-hand recycling price of 8,000 - 10,000 yuan. At the same time, the quality of the lens, its functional status, whether it was repaired, whether it had a full set of accessories (such as box, manual, original battery, original charger, etc.), Bank of China or Hong Kong version, and other factors would also affect the price of recycling. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The camera has three lenses
Here are some details about the camera: - In the field of photography, the combination of one camera and three mirrors was quite common. For example, someone brought Canon's EOS R6 Mark II with rf10 - 20mmf4l issm, rf24 - 105mmF2.8L isusmz, RF50mmF1.2L USM to xiamen for shooting. Different focal lengths had different uses. For example, the focal length of the RF10 - 20mmF4LIS ATM could include more picture elements, which was suitable for shooting scenes such as buildings that needed to cover more details. - The Hikvision 4 million 4-inch full-color panoramic gun ball machine also had a design similar to one machine with three mirrors. It included a detail lens, a panoramic lens, and two fill light. The panoramic lens supported 20x zoom, the detail lens supported vertical 95-degree rotation, and the panoramic lens supported horizontal 360-degree rotation. This design could be used for outdoor scenes such as parks, park entrances, and factory perimeters. - The Nubian Z60 Ultra phone had a unique three-lens design. The first lens was a radiant round mirror, the second lens was a red circle round mirror, and the third lens was a periscope square mirror. There were many physical buttons on the side of the phone. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Tilting camera with seven lenses
The seven lenses of the tilt camera were of great significance in airborne image acquisition. For example, there was an airborne seven-lens multi-angle long-focal length combination tilt photosurveying equipment. The equipment box was mounted on the aircraft, and the acquisition cameras on the equipment box included an orthophoto camera and several tilt cameras. The orthophoto camera is positioned in the middle of the equipment box and is arranged vertically to the equipment box, and a number of tilt cameras are arranged along the orthophoto camera, where the tilt cameras include a center camera and a side camera. The center camera and the equipment box are arranged in a tilted manner and have a first tilt angle, and the side cameras and the equipment box are arranged in a tilted manner and have a second tilt angle. Moreover, the orthophoto camera, the center camera, and the side cameras are respectively provided with different field of view angles. The flight control system includes a processor, an illumination module, a trajectory module, and an imaging module. When the processor sends out an acquisition signal, it controls the relevant units to make each camera carry out camera acquisition according to a predetermined state. Such a seven-lens setting helped to obtain image information from different angles of the ground object during aerial photogrammetry. Compared with some traditional airborne image acquisition methods, it could reduce the flight range of the aircraft, improve the image resolution, and the quality of the model. It played an important role in the application of 3D reality modeling technology (such as surveying, geographical information system, teaching display, urban planning, building construction, game production, smart city, digital archive protection of ancient cultural relics, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Ranking of standard camera lenses
Here are some standard lenses that perform well in different camera brands: - The lens of the Nokton 40mm F1.2 Astral lens was made of 6 sets of 8-piece lens structure (including 2 aspheric lenses). The aperture was fully opened and F1.2 was available. The lens was soft and beautiful outside the focal point. The lens was made of metal. The workmanship and feel were very good. The closest focusing distance was 1.3m. It was a small and high-quality large-aperture fixed-focal lens. - The Vizos AF27mm f/1.2 Pro was another large focal lens after the 75mm F1.2 Pro. It could be used for the Sony-E, Nikon Z-port, and Fuji-X-port. The APS-C format lens had high sharpness, good background blurring effect, and good image quality from the center to the edge. There was almost no purple edge and the price was only 3000 yuan. In addition, there were Nikon Nikkor Z 24 - 70mm f/4S, SonyFE24 - 70mm F2.8GM II, Canon 24 - 70mm f/4L IS USM, SonyFE50mm F1.4GM, Canon RF24 - 70mm F2.8L IS USM, Nikon Nikkor Z 24 - 200mm f/4 - 6.3VR, Canon 24 - 70mm f/2.8L II USM, Canon 24 - 70mm F/2.8L II USM, Canon 24 - 70mm The Fuji XF16 - 80mm F4R OIS QR lens also performed well in different aspects, but it was difficult to determine an absolute ranking because different shooting requirements and camera systems would affect the evaluation of the lens. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The difference between camera lenses
There were many ways to differentiate between camera lenses. The following are the differences in different aspects: ** I. By focal length ** 1. ** Fisheye lens ** - The focal length range is usually 7.5 - 13 mm. The angle of view was very large, and it could shoot special circular or extremely exaggerated effects. The depth of field was long, and it could make the proportion of the near, big, far, and small of the deep scene strong. The image had a strong sense of perspective, but the image distortion was large, especially at the edge of the image. When shooting at close range, the distortion was obvious. 2. ** Super wide-angle lens ** - The focal length was between 17 - 24 mm. It had the characteristics of a large angle of view and a large depth of field, which was beneficial for shooting a wide scene in a narrow environment. It could clearly show the subject with a large depth, but there was also the problem of large distortion at the edge of the image. 3. ** Wide-angle lens ** - 28 - 35mm focal length. Compared to the super wide-angle lens, the angle of view was slightly smaller and the depth of field was larger. It could be used for shooting a variety of scenes, but there might be some image distortion at the edge of the picture. 4. ** Standard Shot ** - The focal length is 45 - 58mm (usually 50mm). Its angle of view was similar to that of the human eye (about 50 degrees), and the image quality was relatively high. It was widely used in various types of photography and had strong adaptability. 5. ** Medium and long focal length lens ** - 80 - 135mm focal length. This focal length was more commonly used in portrait photography. It could use perspective distortion to produce special effects. 6. ** Long focal length lens ** - Like 200mm, 300mm, 500mm, etc. The depth of field was small, which was conducive to capturing the image of the combination of virtual and real; the angle of view was small, which could capture a large image of the scene from a long distance, suitable for shooting objects that were not easy to approach, and the perspective relationship was greatly compressed. The image distortion was small, and it performed well in portrait photography. 7. ** Ultra-long focal length lens ** - 1000mm focal length and above. It could be used to shoot objects from extremely far away. ** 2. Sorting by whether the focal length can be changed ** 1. ** Fixed focus lens ** - The focal length of a fixed-focus lens was fixed. At the same level of technology, the image quality of a fixed-focus lens was often better than a zoom lens. For example, an 85mm fixed-focus lens was used by many professional photographers for portrait photography. Its image quality was basically the ceiling of the image quality of various lenses. 2. ** Zooming lens ** - The focal length of the lens could be freely adjusted within a large range, such as a 24 - 105mm zoom lens. However, under the same quality and technical level, its image quality was worse than that of a fixed-focus lens. ** 3. By Aperture (Aperture)** 1. ** Large-caliber lens ** - The maximum relative aperture (maximum aperture) was F1.0, F1.2, F1.4, F1.7, F1.8, F2.0, F2.8, etc. A large aperture lens had the advantage of shooting in dimly lit environments, and it could obtain a shallow depth of field, making the background blur effect better. 2. ** Medium-caliber lens ** - The maximum aperture was F3.5, F4.5, F5.6, etc. 3. ** Small Aperture Shot ** - The maximum aperture was below F8. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Buy camera lenses online
If you buy a camera lens online, there are a few things to consider: ** 1. Selection of camera type ** 1. ** Focus ** - For beginners, they might prefer to choose a wide-angle lens to obtain a wider field of view, but they should be aware that wide-angle lenses may have problems with the image change and the perspective relationship. The telephoto lens was more useful in landscape shooting than wide-angle shooting, and it could also take into account the shooting of skits and portraits. - For portraits, the commonly used focal lengths were 35mm (suitable for environmental portraits), 50mm (can be advanced or retreated, and can handle both indoors and outdoors), 85mm (very useful for shooting half-length portraits and close-ups, known as the golden focal length for shooting people), and 135mm (suitable for close-ups of people, which can separate people from the background well). - Tianya Mirror (such as Tenglong 50 - 400mm, Nikon Z24 - 200mm, Tenglong 50 - 300mm) is suitable for people who pursue lightness and practicality. It has the characteristics of lightweight and wide focal length coverage (from wide-angle to telephoto), but it is not recommended if you are pursuing the ultimate image quality and performance. 2. ** Fixed focus and zooming option ** - The quality of the fixed-focus lens was better than that of the zoom lens, but the composition needed to be adjusted by moving the position (fixed-focus depended on walking). If the requirements for image quality were high, such as when shooting portraits, the fixed-focus lens would be given priority. It could provide better image quality and blurring effects. - The zoom lens was more convenient to use. By adjusting the focal length of the lens, the image could be changed (zooming depended on the hand). It was suitable for traveling, sweeping the streets, and other situations. It could shoot more content of different topics. ** 2. Price related ** 1. ** Hedging Rate ** - You could consider buying lenses that had a high rate of preservation and were easy to resell, especially if you planned to resell the lenses in a year or two. 2. ** Promotions and Price Fluctuations ** - During a shopping festival like the 11/11 event, the price of some lenses might not be really discounted. There might be price fluctuations, rising first and then falling, or no price reduction at all. For example, Canon's RF28 - 70mm F2.8 lens was priced higher than the official website's recommended price during the Double 11 period, and the price fluctuated. However, there were also some photography equipment, such as Canon R6 II, Nikon Z6 II, Canon R5 II, and SonyA7C II. The prices of various brands of lenses and high-end high-intensity fixed-focus lenses were relatively stable. The price of the last generation of single-lens reflex models was also relatively affordable. ** 3. Evaluation of lens performance ** - Different lenses had different image quality. For example, Canon's RF28 - 70mm F2.8 lens had average image quality and even slightly exceeded the positioning of the silver ring lens. It also had anti-shake function. When choosing, you can refer to some lens evaluation materials or feedback from other users to evaluate the actual performance of the lens. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the software for camera lenses?
Currently, the official version of the lens selection tool was a software for camera lens selection. It was powerful, convenient, and easy to use. It could help the camera installation and user to easily and accurately select the camera lens. The software allowed the user to easily filter out the camera and lens, then set the installation height, installation angle, and other settings to check the imaging effect. Its functions included selecting the camera model and parameters, installation view, map and planning view, added camera list, renderings (pixelation and scale), open, save and save as region, view the official version of the lens selection tool, open source software license, user manual, check for updates, switch between the Imperial and the Imperial system, and so on. "Requirements: CPU: Intel [email protected] or higher; Memory: 1GB or higher; Monitor: 1024×768 or higher resolution; Video Card: 0penGL3.3 or higher. In addition, the software can be used with a variety of popular E-mount, A-mount, and DSC cameras. If you have a compatible sony camera, you can download the software for free from the sony website. Running the software requires macOS 10.13 to macOS 10.15 system versions. It allows the user to replace the built-in camera with a sony camera and use it as a network camera. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Industrial camera interface
The industrial camera of the SonyFCCB-EH6300 had an HD -SDI-interface board, and its HD -SDI-interface could provide real-time HD -SDI-video from the Sony-EH-series block camera. This interface module connects directly to the camera's digital output to provide excellent image quality, supports all camera HD video modes, and additional modes provided by custom firmwares. The DIP switch located at the back of the module allows you to easily select the HD video mode without sending a serial command to the camera, and it has a built-in test mode that conforms to the SMPTE PR- 219 - 2002 specifications. The imx901 supports the slvs-ac interface of up to 9.5Gbit/lane, which can achieve high-definition and high-speed frame rate imaging. It is also compatible with the Mipi interface and can be flexibly applied to various camera system configuration. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>