What do the various parameters of the Fuji camera mean?
The following are the meanings of the common parameters of the Fuji camera: ** 1. Film Simulation ** - This was a unique feature of the Fuji camera. Different film simulation modes could simulate the colors and tones of different films. For example,"Classic","CC", etc. The color and contrast of the photos in different modes would have different effects. ** 2. Granule Effect ** - He could control the graininess of the photo. When it was set to Strong, the photo would have obvious graininess, similar to the graininess of film photos. When it was set to Weak or Off, the graininess would not be obvious. ** 3. Color Effect ** - It was used to enhance or weaken the overall color performance of the photo. A strong setting would make the color richer and brighter, while a weak setting would make the color relatively dull. ** 4. Color: Blue ** - It was mainly a special adjustment for the blue tone in the image. A strong setting would make the blue color more prominent and bright, while a weak setting would make it relatively elegant. ** 5. White Balance ** - It is used to adjust the color temperature of the photo to ensure that the white object can accurately restore white under different lighting conditions. For example, different K values (such as 4800K, 5200K, 5500K, etc.) represented different color temperatures. The higher the value, the warmer the color (yellowish); the lower the value, the colder the color (bluish). White balance shift (such as R - 2, B - 1 means red minus 2, blue minus 1) was a fine adjustment of the red and blue tones on the basis of the basic white balance. ** 6. Dynamic Range ** - For example, the range between the brightest and darkest areas that the camera can record when shooting. A higher dynamic range helped to retain more details in both the highlights and shadows. ** 7. Color curve (such as H - 2, S + 0, etc.)** - The color curve could adjust the color tone and contrast of the photo. The adjustment of the H value (which may represent the highlight) and the S value (which may represent the shadow) will affect the color performance and contrast of the different brightness areas of the screen. ** 8. Color (such as +4,+1,+2, etc.)** - This was an adjustment value for the overall color saturation of the photo. A positive number meant increasing the color saturation. The higher the value, the higher the saturation. ** 9. Sharpness ** - He adjusted the sharpness of the edges of the photo. The higher the value, the sharper the edges and the clearer the image looked. The lower the value, the softer the edges. ** X. High Iso-noise reduction ** - Under high settings, the camera was prone to noise. This was used to reduce the noise in the picture. A positive number indicates that the noise reduction function is turned on and the corresponding intensity is set. A negative number or 0 may indicate that the noise reduction function is weak or turned off. ** 11. Clarity ** - It affected the overall clarity of the photo. It could increase or decrease the clarity of the picture. Different values would bring different visual effects. ** 12, exposure compensation (such as +1,+2, etc.)** - It is used to increase or decrease the exposure based on the camera's automatic exposure. A positive number meant that the image would brighten if the exposure was increased, and a negative number meant that the image would darken if the exposure was decreased. Read more exciting novels for free
Fuji disposable camera parameters
Take the Fuji 1986 disposable film camera as an example. Its sensitivity was 400, and it was a fixed-focus camera with a flash. The number of shots was 27. The camera's hardware parameters included a 32mm f / 10 fixed-focus lens, IOS400 support, and a built-in electronic flash. Its size were 110x32x54mm (McDonald's x Fuji 1986 disposable film camera was expected to be the same as the original). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fuji camera shooting rain scene parameters
When shooting a rain scene with a Fuji camera on a rainy day, the shutter speed must first be considered. If you want to solidify the shape of the rain, you can use a shutter speed of 1/100 seconds or more. However, due to the poor light on rainy days, using a high-speed shutter requires increasing the IQ, which will affect the quality of the image. Therefore, high-speed shutters are rarely used on rainy days. For the Fuji XT4 camera, there was an example of aperture: f/18.0, exposure time: 10/16000, USB: 4000, focal length: 16.0. For the Fuji GFX100S camera, there was an example of aperture: f/2.5, exposure time: 1/50, USB: 1000, focal length: 110.0. However, the parameters of different models of cameras in different scenes needed to be adjusted according to the actual situation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Various camera mode parameters
The common shooting modes of the camera are Aperture priority mode (LV), Shutter priority mode (TV), and Manual mode (M). The parameters of each mode are as follows: ** 1. Aperture priority mode (LV)** 1. ** Aperture setting ** - For landscape shots, the aperture was set to F8 - F11, and the exposure compensation was set to 0. - When shooting a portrait: You can use the maximum aperture or the maximum aperture to reduce the aperture by one gear. At the same time, you can use spot photography to measure the eyes of the model. The exposure compensation is 0. - Cultural street photography: If you need to blur the environment, the aperture is F2.8 or larger; if you don't need to blur the environment, the aperture is F8. - For macro photography, the aperture was between F8 - F11. - [Starlight effect: Aperture: F8 - F11] - For shooting flowers, birds, and insects, the aperture should be at F5.6 or below, and the best was to have an IQ of 400 or less. 2. ** Other related skills ** - Under normal circumstances, unless you want to maintain a safe shutter, avoid using the maximum aperture to shoot. - Try to use F8 - F11 apertures for scenery shots. - For close-ups of characters and still objects, the maximum aperture can be reduced by 1 - 2 apertures. - The safety shutter should be controlled above the inverse of the focal length as much as possible. The wide-angle shutter should be above 1/30s. If the shutter is insufficient, you can increase the aperture or USB. ** 2. Shutter priority mode (TV)** 1. ** Shutter Speed Setting ** - For general body movements, the shutter speed should be above 1/60s. - Walking time: 1/125s or more. - [Fast travel: 1/500s and above.] - Running: 1/1000s or above. - Skiing: 1/2000s or above. - [Bike: 1/2000s and above.] - Normal speed of the car: 1/2000s or above. - [Flight distance: 1/500s] - Follow-up photography: 1/60s- 1/4s - [Freezing birds nearby: 1/4000s] - [Fog Sea: 1/4s or slower] - For daily shooting, the shutter speed is 1/80s- 1/200s. - [Character capture: Shutter speed greater than 1/125s.] - [Baby/Pet: Shutter speed greater than 1/200s.] - Star Chaser/Athlete: Shutter speed greater than 1/1000s. - [Capture car: Shutter speed greater than 1/2000s.] - Starry Sky: 25s-30s. - Shooting fireworks: 3s - 5s. - Light Painting: 15s-30s. - [Star Orbit: More than 2 hours.] ** 3. Manual Mode (M)** 1. ** Different settings for different subjects ** - Full Moon: Shutter speed: 1/500s, Iso200, Aperture: F5.6 - F8 (Clear). - Crescent Moon: Shutter speed: 1/500s, USB: 200, Aperture: F4 - F5.6 (Clear). - New Moon: Shutter speed: 1/500s, USB: 400, Aperture: F4. - [Firework: Shutter speed: 1 - 4s, USB: 200, Aperture: F8.] - [Lightning: Use the B-door, with an IQ of 200 and an aperture of F8 (until the end of the shooting, the environment should be darker).] - Street lights: Shutter speed: 15 seconds, USB: 100, Aperture: F11 (adjusted according to street brightness). - Water boat lights: Shutter speed 30s, USB 100, aperture F8 (adjusted according to the brightness of the environment). - Galaxy: Shutter speed: 30s, 1600 - 6400, Aperture: F2.8 (with super wide angle). - Star Orbit Shooting: Each photo was exposed for 30 seconds, and the next photo was taken at an interval of 1 second. At least 120 photos were taken and stacked later. - Flower photography: Shutter speed: 1/125s, aperture: F2.8, and the CPU is 100 (sunny weather). - Scenery: Shutter speed: 1/125s, aperture: F4, and the CPU: 100 (sunny weather). - Night view: Shutter speed: 1/15s, aperture: F1.8, and the CPU: 200. - Shooting movement: Shutter speed: 1/500s, aperture: F2.4, and the CPU: 100. - Wedding room: Shutter speed: 1/125s, aperture: F2.8 - F8, and the CPU: 400. In addition, the camera's common measuring modes were multiple measuring, center measuring, spot measuring, average measuring, etc. Multi-level Metering is used to calculate the appropriate exposure based on the overall picture, which is basically suitable for most daily shooting. Center Metering is used to take the center of the picture as the important exposure area, which is suitable for shooting with a clear main object in the center of the picture (such as still life, portrait, pet, etc.). Spot Metering only counts the exposure of the picture within the spot, which is suitable for shooting when the light ratio is very large (such as backlit silhouette or black-and-white photo shooting). Average Metering is used to average the exposure information of the whole picture on the screen, which is suitable for outdoor or landscape shooting. Some cameras also had strong light measurement, which focused on the strong light area of the screen to ensure that the part was not exposed. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to test the various parameters of the camera
The following are some of the camera's parameters: ** 1. Dynamic Range Test of the Sensing Device ** You can refer to the ratings of the camera's mos on the DexOmark website. By grouping different cameras according to the order of the DexOmark, for example, five cameras in a group, the dynamic range of each camera under different USB values was compared. For example, the Pantheon S1R had higher data at the highest dynamic range, but it was basically the same as other cameras after the drop of around 400. In the case of high sensitivity, the dynamic range of the SonyA7R3 was relatively higher, and the performance of the SonyA7R4 was also better. Among the cameras ranked 6 - 10, the SonyRX1RM2 and A7R2 had the same dynamic range and performed better than the other three machines in high sensitivity due to the same mos. The Lycra Q2 performed the worst. ** 2. Shutter Speed Test ** 1. ** Shutter speed test for specific effects ** - Prepare a tripod, a shower head, and a water pipe (connected to the faucet). Turn the camera to Shutter priority (Tv) mode, aim at the showerhead, and find the shutter speed that can "freeze" the water droplets (for example, the water droplets can be frozen in 1/500 seconds for the subject of the showerhead). Then gradually slow down the shutter speed to observe the effect of the shutter speed on the water flow. If the water flow of the showerhead was too fast, he could find a natural water flow and experiment again. First, find the high-speed shutter that froze the water flow, and then slowly reduce the shutter speed to observe the flow of the water and the situation of the fog. 2. ** Hand-held shutter speed test ** - Find an object with rich details (patterns, texture) as the main subject. Starting from the "safety shutter"(that is, the inverse of the focal length of the lens on hand, for example, the safety shutter of a 24mm lens is 1/24 second), adjust the shutter speed to shoot at the main subject. He copied the photo to the computer, enlarged the details, and judged at what shutter speed the details were still sharp, and at what shutter speed the details were slightly blurred but overall sharp, so as to understand the performance of the lens at hand. ** 3. Light sensitivity test ** 1. ** Using the Glory 30S phone as an example, the sensitivity test ** - In the professional mode of the phone, the sensitivity could be adjusted from 50 to 51200, but it was important to use the sensitivity reasonably in most scenes. For example, in most low-light situations, it was enough to drive to 800 - 1600, and it was rare to use 3200 - 6400. In the night view mode of the Glory 30S phone, the sensitivity could be manually adjusted from 100 to 1600. The effect of the sensitivity could be tested by comparing the quality of the photos taken under different sensitivity. 2. ** For the sensitivity test of a digital camera ** - In general, the higher the sensitivity, the more affected the digital camera would be. The sensitivity could be tested by shooting the same scene at different sensitivity and observing the photo quality (such as noise, color reproduction, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Various parameters of the camera external reference matrix
The external parameters matrix described how the points in the world coordinate system were transformed into points in the camera coordinate system through translation and rotation. where the index c represents the coordinates in the camera coordinate system, the index w represents the coordinates in the world coordinate system, R represents the rotation matrix, and t represents the translation matrix. The external parameters matrix was actually the alignment of the world coordinate system of a certain point P and the camera coordinate system. That is, after translation and rotation, the two coordinate systems could be completely overlapped. For example, in the rotation transformation in two-dimensional space, a certain point P in different coordinate systems can be represented by the base variables in different coordinate systems.(Among them, xc, yc, xw, and yw are the unit orthonormal base matrices in the coordinate system.) Through these relationships, the meaning of the parameters of the rotation matrix can be obtained: the first column of the rotation matrix represents the direction of the Xw axis in the world coordinate system in the camera coordinate system; the second column of the rotation matrix represents the direction of the Yw axis in the world coordinate system in the camera coordinate system; and so on for the transformation matrix in three-dimensional space. Moreover, when the camera motion is considered, the external parameters matrix will change accordingly based on the initial matrix and each motion matrix (for example, when the camera moves in R1 and t1, the matrix of the motion will be multiplied by the original matrix, etc.). In addition, for the external reference of the non-overlapping field of view camera, one of the calibrations was to construct two similar maps and find all the matching map points. The external reference parameters were the transformation relationship between the maps, which also involved the reflection of the relevant parameters of the external reference matrix in different scenarios. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon's various single-lens reflex camera parameters
Nikon single-lens reflex cameras came in several series. The parameters of different series were as follows: - **Dx series **: D1, which started in 1999, was the beginning of this series. The latest product is D6. This series had the strongest focus and continuous shooting performance among Nikon's DSLR, and was the flagship model. - ** D8x series **: This is the flagship image quality camera of Nikon's DSLR. Compared to Canon's 5D series, such as the D850, even after six years of release, the image quality is still very strong. - ** D7x series, D6x series **: They were the entry-level full-frame models of Nikon's DSLR, which were comparable to Canon's 6D series. When the Nikon D600 was released, there was a problem with the shutter assembly. Soon after, Nikon released the D610. The entry-level full-frame D750, which was released in 2014, also belonged to this series. - ** Dx00 series **: This is the Nikon APS-C frame speed flagship camera, which is comparable to Canon's 7D series. It focuses on focusing and continuous shooting speed. - ** D7x00 series **: It was a high-end image quality model with the APS-C format. - ** D5x000 series, D3x00 series **: These are low-end DSLR products from Nikon, and are currently no longer available for sale. For example, the Nikon D810 was a 36-million-resolution full-frame single-lens reflex camera with an aluminum alloy shell. It was priced at more than 20,000 yuan on the market and sold for thousands of yuan second-hand depending on its color. The Nikon D5 and D4S were professional full-frame single-lens reflex cameras, but no detailed comparison of parameters was found. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What do the parameters of the camera lens mean?
The main parameters of the camera lens are focal length, aperture, etc. The following is to introduce their meaning: ** 1. Focus ** 1. ** The focal length of the fixed-focus lens ** - If the focal length of the lens is a number (for example, 50mm), this is a fixed-focus lens. The focal length of the fixed-focus lens was fixed, and it had a fixed angle of view. If one wanted to change the width of the picture, such as making the picture wider or making the distant view larger, they could only do so by moving the photographer's position back and forth. The common focal lengths of fixed-focus lenses were 10mm, 24mm, 35mm, 50mm, 85mm, 100mm, 135mm, etc. 2. ** The focal length of the zoom lens ** - When the focal length of the lens is two numbers (such as 24 - 70mm), this is a zoom lens. It could change the angle of view by adjusting the lens. For the same camera, the larger the focal length number, the smaller the angle of view, which could enlarge the distant scenery; the smaller the focal length number, the wider the angle of view, which could accommodate more information in the picture. For example, a 15 - 45mm lens could provide a wider angle of view than an 18 - 150mm lens, while an 18 - 150mm lens had a stronger zooming ability than a 15 - 45mm lens when shooting long-range shots. - The camera frame and the focal length of the lens jointly determined the angle of view, and the lens of the same focal length had different angles of view on different frame cameras. For the sake of comparison, the concept of equivalent coefficient and equivalent focal length was introduced (equivalent focal length = focal length × equivalent coefficient). Whether the equivalent focal length was calculated or not depended on the camera frame. ** 2. Aperture ** 1. ** Aperture size indicates ** - The maximum aperture of the lens could be written in many ways, such as 1:2.8, f/2.8, and F2.8. The aperture value is marked with the letter f. The smaller the f value, the larger the aperture. The larger the number, the smaller the aperture (for example, F1.4>F2.8>F4). 2. ** The effect of the aperture on the image ** - The aperture mainly affected the image. For the same camera and the same focal length, the larger the aperture, the shorter the depth of field. In portraits and still life shots, it was easier to blur the background and highlight the subject. - In addition to affecting the depth of field, the aperture, shutter, and sensitivity also formed the three elements of exposure. A large aperture helped to increase the shutter speed and increase the success rate of hand-held shooting when the subject was moving at high speed or in low-light environments. 3. ** Permanent Aperture and Non-Permanent Aperture (Floating Aperture)** - ** Permanent Aperture ** - For a zoom lens, if the lens aperture was a number (such as F2.8), it meant that it could reach F2.8 aperture over the entire focal length range. For example, the 24 - 70mmF2.8 was a constant aperture lens. Generally, a constant aperture lens could achieve better image quality. When the aperture was set to the maximum, the zooming operation would not affect the exposure of the constant aperture lens. - ** Non-constant Aperture (Floating Aperture)** - If the lens aperture was two numbers (for example, F3.5 - 5.6), the maximum aperture of the lens would change during zooming. For example, 28 - 70mm F3.5 - 4.5 was a floating aperture lens. The longer the focal length, the larger the aperture value. The aperture of the 70mm segment would be F4.5. The lens of a non-constant aperture lens had a small diameter, low weight, and was cheap, but 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 parameters of the camera
There were many parameters for the camera lens. The following were some common parameters: 1. ** Focus **: It determines the degree of zooming of the lens. A longer focal length was used for long-distance shooting. For example, a telephoto lens could be used to shoot long-distance topics such as sports competitions, wild animals, aircraft, etc., and it could also enhance the background blurring effect. A shorter focal length was used for wide-angle shooting, such as wide-angle lenses for landscape photography, architectural photography, and crowded indoor spaces. 2. ** Aperture **: For example, the main camera of the Vivo X200 Pro is equipped with a large aperture of f/1.57, which helps to take brighter and clearer photos in dark environments. Its periscope telephoto lens has an aperture of f/2.67, which can ensure the clarity and details of the picture when shooting telephoto. The size of the aperture affected the amount of light entering, depth of field, and so on. 3. ** Pieces **: It is one of the important indicators to measure the quality of the camera. For example, the main camera of the Vivo X200 Pro is expected to use a 50-million-pel large sensor, and the periscope telephoto lens is equipped with a 200-million-pel periscope telephoto lens. 4. ** Photosensor **: For example, the sensor of the HD - 3000 camera is a LCD; the main camera of the Vivo X200 Pro has a 1/1.28-inch sensor, and the periscope telephoto lens has a 1/1.4-inch base. 5. ** View angle **: For example, the helmet camera lens is a 3.7mm pinhole lens with a 90-degree view angle. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The parameters of the camera
The main parameters of the camera lens were as follows: - Aperture: controls the amount of light that enters the lens. The smaller the aperture, the greater the amount of light that enters the lens, and the more obvious the background blurring effect. For example, in a dark environment, a large aperture could allow more light to enter the camera and take a bright photo. At the same time, it could highlight the subject and blur the background. - ** Focus **: determines the angle of view and magnifying power of the lens. The short focal length lens had a wide angle of view and was suitable for shooting large scenes such as landscapes. The long focal length lens had a narrow angle of view and could zoom in on distant objects. It was often used to shoot portraits, close-ups, or sports events that needed to be zoomed in. - ** Shutter Speed **: The length of time the shutter is opened. A fast shutter speed could freeze instantaneous movements, which was suitable for shooting moving objects, such as fast running athletes. A slow shutter speed could capture the trajectory of the object's movement, such as shooting a smooth effect when shooting water. However, a slow shutter speed needed to be used with a tripod to prevent blurring caused by hand shaking. - [Depth-of-field]: It refers to the range of clear images before and after the focal point. A large aperture would cause the depth of field to become shallow, that is, the clear range before and after the focus was small; a small aperture would cause the depth of field to be large, and the clear range before and after the focus would be wide. - ** Light sensitivity (USB)**: It indicates the sensitivity of the camera to light. The higher the value, the more sensitive the camera was to light. In a dim environment, the camera could increase the brightness by raising the value, but an overly high value would cause noise and affect the image quality. - ** White Balance **: Adjusts the camera to ensure that white objects appear white under different lighting conditions. Automatic white balance (AWB) for daily shooting can basically meet the needs, but it can be manually controlled in special scenes or when you want to change the image effect, such as using the built-in scene mode, manually adjusting the K value, etc. - ** Distortion **: Different types of lenses may have different degrees of distortion. For example, wide-angle lenses may produce barrel distortion, and telephoto lenses may produce pincushion-shaped distortion. This was something to take note of when shooting objects that required strict shapes such as buildings. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
External parameters of the camera
The external parameters of the camera were parameters in the world coordinate system, mainly referring to the rotation and translation matrix between the camera systems, such as the position and rotation direction of the camera. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>