What kind of camera lens parameters are used to shoot TV dramas?
When filming a TV series, some of the relevant parameters of the camera lens were as follows: 1. * * CCD-size **: Originally, it was mostly 1/2-inch, but now 1/3-inch has been popularized, and 1/4-inch and 1/5-inch have also been commoditized. The resolution of the camera was the main performance indicator, which determined the clarity of the image. The higher the resolution, the better the image details. A camera with a resolution of 380,000 or more was a high-resolution camera. 2. * * Horizontal resolution **: The typical resolution of a color camera is between 320 - 500 TV lines, and there are different grades such as 330 lines, 380 lines, 420 lines, 460 lines, and 500 lines. The resolution was related to the CCD-lens, and also directly related to the frequency band width of the camera circuit channel. Usually, the frequency band width of 1 MHZ was equivalent to 80 lines of resolution. The wider the frequency band, the clearer the image. 3. * * minimum illumination (sensitivity)**: refers to the sensitivity of the camera to the surrounding light. The unit is Lux. The smaller the value, the less light is needed and the more sensitive the camera is. 2 - 3 Lux is a normal illumination. 4. * * Scanning System **: There are two types of scanning systems, namely, PDA system and feast system. 5. * * Power supply for the camera **: AC 220V, 110V, 24V, and 12V or 9V for the direct current. 6. * * Signal to noise ratio **: The typical value is 46 dbm. If it is 50 dbm, the image will have a little noise. 7. * * Stream Type **: It is divided into composite stream (recording contains video and audio) and video stream (only contains video information). 8. * * Bitrate Type **: It includes fixed bitrate (code according to the set bitrate upper limit) and variable bitrate (change automatically according to the scene). Under the same video coding method, the higher the bitrate, the clearer the picture will be. However, if the bitrate is too high, the file size will increase, and the picture will not be improved. 9. * * Video frame rate **: refers to the number of video frames per second. The value range is 1/16 fps to the full frame rate (based on the camera parameters). If the frame rate is too low, the image will be stuck. 10. * * Bitrate upper limit **: The theoretical maximum bitrate of the code, which affects the image quality. Lowering this parameters can reduce the connection or transmission of the camera, and reduce the storage size of the video. 11. * * Video coding format **: H.265 (HEVP) can achieve a higher compression ratio than H.264 (AVI) at the same picture quality, reducing the usage of bandwith and storage space. If the camera supports it, it will be used first. 12. * * Wide-angle lens focal length range **: If a wide-angle lens is used, its focal length range is usually between 10 - 35mm. Read more exciting novels for free
What kind of camera lens is used to shoot a basketball game?
The basketball game in the third document was shot with an AF-S Nikkor 24 - 70mm f/2.8E ED VR lens. However, for shooting basketball games, a medium telephoto zoom lens was generally more suitable. For example, 70 - 200mm f/2.8 lenses were also commonly used for shooting basketball games. Such a lens could capture the player's movements, expressions, and other details from a long distance. The large aperture could ensure enough light in the indoor basketball stadium, which was dimly lit, and blur the background to highlight the main player or basketball. The zooming function made it easy to flexibly adjust the focal length according to different shooting scenes and needs. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What kind of camera lens is used to shoot a food video?
There were many choices of camera angles when shooting a food video. If you have a budget, you can choose the R - 24 - 70 lens of the Sony1; if you have a lower budget, you can choose the 24 - 70 lens of the Sony1; if you have a lower budget, you can choose the 24 - 70 lens of the Sigma2; if you have a lower budget, you can choose the 28 - 70 lens of the Sigma2. He could also use a macro lens, which was convenient for composition and more suitable for close-up shots of food. In addition, a macro lens like the PE 90mm, f/2.8 lens was suitable for shooting food details and close-ups, while the PE 50mm, f/1.8 lens could be used to shoot more scenes such as desks. During specific shooting, multiple shots could be arranged according to different shooting needs and scenes. For example, different shots such as washing vegetables, cutting vegetables, preparing ingredients, cooking food, eating, and so on could be set to enrich the video content. In addition, when shooting food videos, use a lens with a longer focal length (such as 50mm or above) to better capture the details of the food and achieve background blurring to highlight the main body. You can also use a telephoto lens to shoot a panoramic view. When the phone was shooting, it could use its zooming function, such as turning to the side of the table corner and zooming in to 3 times the focal length to shoot a big scene. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Details of the camera lens parameters
The main parameters of the camera lens include focal length and aperture. The following is a detailed introduction: ** 1. Focus ** 1. ** Fixed focus lens ** - "definition: A lens with a fixed focal length. The common focal lengths are 10mm, 24mm, 35mm, 50mm, 85mm, 100mm, 135mm, etc. - Special traits: - The optical design and mechanical structure are simple, and the high image quality can be achieved at a low manufacturing cost. - It had a larger aperture and a lighter lens. - Because the focal length could not be changed, the adaptability was poor in scenes that required a quick change in the field of view. When shooting, one often had to move their position to change the framing range. 2. ** Zooming lens ** - "definition: A lens with a focal length that can be changed within a certain range, such as 12 - 24mm, 24 - 70mm, 70 - 200mm, etc. - Special traits: - The field of view could be changed, which was suitable for quick shots of active scenes. It was more convenient than carrying multiple fixed-focus lenses. - The structure was complicated, and the design of the optical path was difficult. Compared to the fixed-focus lens, the price was higher, the image quality was slightly worse, and the aperture was relatively small. - Different focal lengths: - Wide-angle range (usually <35mm): suitable for shooting culture, vlog, can highlight the sense of depth. - Medium focal length (usually 36mm-134mm): Often used for portraits or travel photography. - Telephoto end (usually> 136mm): suitable for shooting long-range shots, sports, flying birds, or expressing a sense of depth. ** 2. Aperture ** 1. ** Aperture expression and size relationship ** - The aperture value was marked with the letter f, such as 1:2.8, f/2.8, and F2.8. The smaller the f value, the larger the aperture, such as F1.4>F2.8>F4. The smaller the f value, the more blurred the background of the subject and the lighter the depth of field. At the same time, a large aperture also meant that the amount of light entering was larger. 2. ** Permanent Aperture and Non-Permanent Aperture (Floating Aperture)** - ** Permanent Aperture ** - For a zoom lens, the nominal maximum aperture can be used in all focal lengths, such as 24 - 70mmF2.8, 24 - 105mmF4, etc. - Special traits: - Generally, it can achieve better image quality (compared to a floating aperture lens). - Zooming when the aperture is set to the maximum will not affect the exposure. - If it was a wide-angle lens with a constant large aperture, it would be relatively expensive. - ** Non-constant Aperture (Floating Aperture)** - The aperture of the lens will change with the focal length, such as 18 - 300mmF3.5 - 5.6, 100 - 400mmF4.5 - 5.5, etc. - Special traits: - The lens was small in diameter, light in weight, and cheap. - The focusing speed was relatively slow. Due to the small aperture, it was not conducive to taking shallow depth of field photos. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The main parameters of the camera lens
The main parameters of the camera lens were as follows: ** 1. Focus related ** 1. ** Fixed focus lens ** - The focal length was fixed. The common focal lengths were 10mm, 24mm, 35mm, 50mm, 85mm, 100mm, 135mm, etc. - The optical design and mechanical structure of the fixed-focus lens were simple. It could achieve high image quality, large aperture, and lighter at a lower cost. However, because the focal length could not be changed, it was not suitable for scenes that required rapid changes in the field of view. For example, when shooting dynamic scenes, the photographer might need to move his position to adjust the viewing range. 2. ** Zooming lens ** - The focal length can be changed within a certain range, such as 12 - 24mm, 24 - 70mm, 70 - 200mm, etc. - The advantage was that the field of view could be changed, and there was no need to change the lens to take photos of different scenes. It was suitable for quick shots of active scenes. However, its structure was complicated and the design of the optical path was difficult. Compared to a fixed-focus lens, the price might be higher, the image quality might be slightly worse, and the aperture might be smaller. ** 2. Aperture related ** 1. ** Constant-aperture lens ** - For the zoom lens, the nominal maximum aperture can be used in all focal lengths, such as 24 - 70mmF2.8, 24 - 105mmF4, 50mmF1.2, 85mmF1.4, etc. - The constant aperture lens would not affect the exposure when zooming at the maximum aperture, and generally could achieve better shooting quality. However, if it was a wide-angle lens with a constant large aperture, it would be relatively expensive. 2. ** Non-constant aperture lens (Floating aperture lens)** - The aperture of the lens would change accordingly with the focal length, such as 18 - 300mmF3.5 - 5.6, 100 - 400mmF4.5 - 5.5, etc. In addition, the aperture value was marked with the letter f. The smaller the f, the more blurred the background of the subject and the lighter the depth of field. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Soviet camera lens parameters
The following are some of the parameters of the Soviet camera lens: - HELIOS44 58/2 lens ("Eight-feathered monster"). The specific parameters were not mentioned. - Mir - 1 2.8/37 lens: 37mm focal length (37.38mm), aperture ratio 1:2.8, field of view 60°, frame size 24x36mm, number of lenses/groups 6/5, front focal length-3.49mm, back focal length 37.17mm, distance from the first surface to the last surface 52.8mm, working distance (45.2mm for Mir - 1, 44.0mm for Mir - 1 -auto, 45.5mm for Mir - 1V), aperture ratio limit of 1:2.8 - 1:16, close-up focus limit of 0.7m, resolution of 45/23 lines/mm according to specifications (center/edge), light transmission rate of 0.78, connection (Lens-to-camera: Mir - 1 is M39×1, Mir - 1 -auto mount)(f/a Kiev - 10), Mir - 1V for M42×1; for screw attachment: Mir - 1 for Sp M49×0.5, Mir - 1V for M49×0.75; for snap-on attachment 51mm), overall size (The length of the lens with the lens cover: Mir - 1 is 62mm, Mir - 1V is 56mm, the largest frame diameter is 59mm), weight (Mir - 1 is 200g). - "JUPL- 9"("JUPL- 9" 2/85) lens: focal length 84.51MM, aperture 1:2 to 1:16, field of view 28 degrees 51 minutes, filter size M49*0.75MM, closest focusing 0.8M, seven pieces in three groups, the middle and back two parts are made of three lenses, the resolution is 32 lines/MM in the center, 23 lines/mm at the edge, volume 65(diameter)* 66mm, weight 0.36kg. - A particular camera had a focal length of 50mm and a clear aperture of 1:3.5. It was a three-piece, three-group orthoscope. The lens could be disassembled, and the shutter speed range was 1 - 1/1000. It also had a T-door and a B-door. There were ten levels of speed regulation, but the specific name of the lens was not mentioned. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Household camera lens detailed parameters
The following are the detailed parameters of some home camera lenses: ** 1. Pieces and resolution ** 1. ** Pieces affect image quality **: Pieces are an important factor in determining the image quality of the camera. The higher the number of pixels, the higher the resolution. Theoretically, the better the image quality, but the cost and practical requirements must also be considered. The mainstream home camera's resolution was above 1080p (2 million resolution). Generally, 2 million resolution indoors could meet the demand, and 4 million resolution outdoors was more suitable. 2. ** resolution and network transmission **: The basic parameters of resolution are the number of pixels.For home cameras that transmit images through the network, the balance between image clarity and network speed is very important. It is not that the higher the resolution is, the better it is because the higher the resolution, the larger the storage space required and the higher the requirements for home network bandwith. The resolution of mainstream home cameras on the market is generally between 2 million and 4 million. This range can meet the daily needs of observing details such as faces and movements. ** 2. Perspective ** 1. ** Small room option **: If the room is small, you can choose a wide-angle 2.8mm card machine. 2. ** General situation **: Most household products support the rotation of the lens. When the camera is installed in the corner of the wall, you can see the front at a 90-degree angle. The indoor camera can be rotated horizontally (left and right) at about 340 - 360 degrees, and vertically (up and down) at 90 - 120 degrees. It can basically achieve 360-degree surveillance without blind spots. 3. ** Focus of the lens **: The focal length of the lens is the core parameters, which determines the range and distance of the monitoring angle. The home camera had a wide angle of view. The focal length range was usually between 2.8mm and 12mm. It could monitor the environment within a range of 3 - 20m. The zooming lens could adjust the focal length according to the distance of the observed object. ** 3. Radio band ** Pay attention to matching the frequency band of the home router. It supports 2.4G or 5G (not 5G/4G for mobile phone signals), and it is best to support dual-band. ** 4. Night Vision Function ** 1. ** infrared night vision **: Most home cameras support infrared night vision. They illuminate objects with infrared fill light and use the infrared light reflected by the object to form an image. When the light is dim, the image can be clearly formed, but the image has no color, and details such as faces are difficult to see clearly. 2. ** Full Color Night Vision **: Able to display a colorful image at night. The details are better than infrared night vision. However, the fill light may be switched on and off frequently when moving objects are detected at night (mosquitoes are easy to attract in summer). You need to choose according to your needs. ** 5. Storage Method ** 1. ** Local Storage **: Save the video in the built-in memory card of the camera. The advantage is that you don't have to pay. The disadvantage is that the storage capacity is limited. If the card is damaged, the video will be lost. If the camera is damaged, the video will also be lost. 2. ** Cloud Storage **: The video is stored in the cloud server of the product manufacturer. The recording is safe unless the platform fails, but it requires payment. ** 6. Intelligent Function ** 1. ** Movement Tracking **: automatically tracks moving objects and sends real-time alarm messages to mobile phones and other devices. 2. ** Alarm function **: When an abnormal situation is detected, an alarm sound will be immediately emitted and uploaded to the mobile app. 3. ** Voice intercom **: Similar to a walkie-talkie, it can achieve two-way voice communication. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
General settings of camera lens parameters
The camera lens parameters generally included aperture, shutter speed, sensitivity, mode dial, and other settings: ** 1. Aperture ** 1. ** Relationship between values and light input and depth of field ** - Aperture is often expressed as F/x (or Fx). The smaller the x value, the larger the aperture, the more light entering, the smaller the depth of field, the clearer the focus subject, and the blurred background and background. It is suitable for taking close-up photos such as people and still objects. The larger the x value, the smaller the aperture, the less light entering, the larger the depth of field, and the clearer the picture elements. It is suitable for taking scenery, group photos, and so on. 2. ** Adjusts according to the brightness of the photo ** - When the photo is dark, you need to open a large aperture; when the photo is bright, you need to close the aperture. ** 2. Shutter Speed ** 1. ** Relationship with exposure time and photo brightness ** - The shutter speed was measured in seconds. The longer the exposure time, the brighter the photo. High-speed shutter (short exposure time), such as 1/500 seconds, can capture the instantaneous posture of high-speed moving objects; slow shutter (long exposure time), such as 4 seconds, can record the moving trajectory of light spots, used for shooting waterfalls, light paintings, car tracks and other subjects. 2. ** Choose according to the subject ** - When shooting people or moving objects, the shutter speed can be set to more than 1/200s to ensure that the moving objects are shot clearly. The slower the speed, the more likely it is to have a smear when shooting moving objects. ** 3. Light sensitivity (USB)** 1. ** Relationship with image quality and brightness ** - The higher the value, the brighter the photo, but the more noise, the more sensitive the camera was to light. The lower the value, the darker the photo, and the less noise, the less sensitive the camera was to light. Usually, it was manually set to a lower value, such as 100 - 400, to ensure the clarity of the image. 2. ** Adjusts according to lighting conditions ** - When the light is strong, the USB can be set to 100, and when the light is weak, the USB can be set to 400 or less, and try not to exceed 800. ** 4. Mode Wheel ** 1. ** Automatic exposure mode ** - The camera automatically selected the exposure parameters according to the brightness of the captured image. The photographer only needed to press the shutter to shoot. 2. ** Semi-auto exposure mode (P, Av, Tv)** - ** Program auto exposure mode (P)**: Control the brightness of the image through exposure compensation. If the image is dark, increase the exposure compensation. If the image is bright, decrease the exposure compensation. - ** Aperture priority mode (Av)**: Set the aperture manually. The USB can be set manually or automatically. The shutter speed will change automatically according to the light measurement results. The brightness of the image will be controlled by exposure compensation. It is suitable for shooting still objects. - ** Shutter priority mode (Tv)**: manually set the shutter speed, the USB can be set manually or automatically, the aperture is automatically adjusted according to the light measurement results, and the brightness of the image is controlled by exposure compensation. Different scenes had different settings for the camera lens. For example, when shooting scenery (M file), you can set the settings to around 100, F8, and 1/200 on a sunny day, and 400 on a cloudy day. For shooting still life, flowers, fish and insects (Grade A), aperture F5.6 and above should be as large as possible, focal length 50 and above, strong light source should be 100, weak light source should be 400 and below, try not to exceed 800. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The parameters of a single-lens reflex camera
The following are some important settings for a DSLR camera: 1. ** Shooting Mode **: It is recommended to choose the manual mode (M). This way, you can control the shutter, aperture, sensitivity, and other parameters independently. 2. ** Video recording format and size **: If there are no special requirements, you can choose to record 1920*1080, 25 frames, MOV format of high-definition video. If there are special requirements for zooming in, you can choose 4K or other format. 3. ** Shutter Speed **: Generally, it is twice the frame rate of the video. For example, when the frame rate is 25 frames, the shutter speed is set to 50; when the frame rate is 60 frames, the shutter speed is set to 120. This way, the visual effect can be achieved. 4. ** Aperture **: The aperture size affects the depth of field of the picture. A large aperture (such as F2.8) made the picture brighter and the background blur stronger, while a small aperture (such as F11) made the picture darker and the background blur weaker. The larger the aperture value, the smaller the actual aperture. 5. ** Light sensitivity (USB)**: When there is sufficient light, the lower the USB, the better. It is not advisable to set it too high in a dark environment, otherwise it will produce noise. For example, Canon DSLR can be set to 100 during the day and 800 - 1000 at night. A high USB (greater than 2000) will produce obvious noise and it will be difficult to repair later. 6. ** Color temperature (white balance)**: adjust to manual mode. Generally, it is recommended to adjust the color temperature between 4900 and 5300. The higher the color temperature, the more yellow the screen will be, and the lower the color temperature, the more blue the screen will be. 7. ** Focus **: If you have good manual operation ability, you can try to manually focus and select the focus point. Novice or for convenience, you can use the automatic intelligent autofocus. However, it is recommended to practice manual focus more if possible. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What kind of camera does America use to shoot TV dramas?
There are many types of cameras used in TV shows in the United States. The following are some of the TV shows and the cameras used: - "Star Trek: Discoverer": Use the camera in the LED studio to shoot, and use virtual production technology to meet the shooting needs. - "Firehouse No. 19": Through the LED wall of the Stargate Studio and the camera in the visual production system, the driving scene will be shot using the special effects in the camera. - [Game of Thrones: Mainly uses cameras such as the ARRi ALEXA, ARRi ALEXA Mini, and the Red Epic Dragon.] - "Barry": Using the ARRi ALEXA Mini camera. - [Westworld]: Using ARRICAM ST/MT, ARRIFLEX235 cameras. - The first season of True Detective used a Panafrex Millennium XL2 camera, and the second season used an ARRi ALEXA XT-Plus camera. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What kind of lens was used to shoot the short film?
There are many types of lenses that can be used for short films. The following are some common lens types and their characteristics: - ** Long-range shot **: It has a wide field of view and can show the environment, scale, and atmosphere of the event, as well as the activities of the people. It is usually shot with a wide-angle and standard lens and is rarely used in Short videos. - ** panoramic lens **: It is used to show the whole scene. You can see the movements of the whole body and the environment. The visual range is smaller than that of a long-distance lens. The main body appears in the picture. The theme is more clear. It can directly show the relationship between the main characters. It is often used in story-based videos. - Medium shot: The scope of the scene is smaller than that of the panoramic shot. The environment is secondary. The focus is on the upper body movements of the characters. It is a narrative scene and takes up a large proportion in the film and television works. Its advantage was that it could not only show the actors 'movements, but also clearly see the actors' expressions. It could also accommodate many people, which was beneficial for explaining the relationship between the characters. Its performance ability was relatively outstanding in Short videos on mobile phones, and it was commonly seen in drama videos. - ** Close-up shot **: The shot is from the chest of the character and above. It focuses on the facial expression of the character. It can clearly show the inner emotions and emotions of the character. It vividly shows the spiritual appearance of the character. It is the most powerful scene to portray the character. In Short videos, because the main body occupied a large area of the screen, it was suitable for expressing the content quickly. It was more used in content that did not have high requirements for the scene and wanted to show the characteristics of the characters. - ** Close-up shot **: Shoot the face of a person, a part of the human body, or a detail of an object. The bottom frame of the picture is above the person's shoulder. The subject is full of the picture and closer to the audience than the close-up shot. It can subtly express the facial expression of the person. It is mainly used to describe the inner activities of the person. Whether it is the person or other objects, it can give the audience a strong impression. In addition, there were other shots to choose from, such as extreme long-range shots, large panoramic shots, small panoramic shots, half-body shots, and large close-ups. During the shooting process, the camera also had a variety of motion modes such as push, pull, shake, shift, follow, rise, fall, bend, tilt, swing, hang, air, cut, and so on. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>