Nikon lens parameters setting
There were many parameters for Nikon lenses. The following are some of the main parameters: ** 1. Type of bayonet ** 1. **F mount ** - The FX-lens was suitable for all of Nikon's DSLR cameras, similar to Canon's EF-lens, while the DX-lens was suitable for Nikon's APS-C format camera, similar to Canon's EF-S lens. - Generally speaking, the price of the DV lens was more affordable and could be regarded as an APS-C (half-frame) entry-level lens, while the XP lens was a professional lens and had a higher price. However, Nikon's DV lens could be installed on a full-frame camera, but it might produce black circles or dark corners. If you didn't have a full-frame lens on hand, you could replace it after trimming the image. - Among the Nikon AF-S and AF-F lens models, the ones with the word "DK" were called "DK" lenses, and the others were "FO" lenses. The capital letter N was more commonly seen on the lens body of the FO lens. 2. ** Z-mount ** - The Z lens was suitable for Nikon micro-cameras, similar to Canon M-series lenses. ** 2. Type of motor ** 1. **AF** - This lens does not have a focus motor. You need to use a body equipped with a motor to achieve autofocus. 2. **AF - I** - It meant that the lens had a built-in motor design. 3. **AF - S** - It meant that the lens had a built-in ultrasonic motor design, which made focusing faster and quieter. Some half-frame lenses of Nikon also had this motor, which was different from Canon (Canon's similar logo was USM and was mostly used for full-frame lenses). 4. **AF - P** - It meant that the lens had a built-in stepping motor, similar to Canon's ATM logo. If there was the word (PC), it meant that the lens was a shift-axis lens. ** 3. Focus related parameters ** - Numbers such as 24 - 70mm/105mm on the lens indicate the focal length of the lens. The zooming lens was marked with the values at both ends of the focal length range, and the fixed-focus lens was represented by a single value. ** 4. Aperture related parameters ** 1. ** Maximum Aperture Value ** - For example, 1:3.5 - 5.6/1:2.8 represents the maximum aperture value. When the zoom lens had two values, they represented the maximum aperture of the wide-angle end and the telephoto end respectively; the fixed focal lens and the zoom lens used a single value to represent the constant maximum aperture. 2. ** Aperture Type ** - No Suffix meant that the lens had an aperture ring and could not provide distance information;D Suffix meant that the lens had an aperture ring and could provide distance information;G Suffix meant that the lens did not have an aperture ring but could provide distance information;E Suffix meant that the lens did not have an aperture ring, but an electromagnetic aperture could also provide distance information. E was more advanced than G. ** 5. Other parameters ** - II meant that the lens was a second-generation product. - TL, ED, PR, and so on indicate the type of lens used (Canon lenses do not indicate such information). - VR indicated that the lens had a shock absorption function, similar to Canon's IS logo. - N represents a special (nano) coated lens, which can effectively alleviate the ghostly shadows caused by red light and reduce the ghostly shadows and glare caused by the light entering the lens diagonally. Read more exciting novels for free
Nikon DSLR display parameters setting
Different Nikon DSLR models had different display parameters in different shooting modes. Common advanced shooting modes included P (program mode), S (shutter priority mode), A (aperture priority mode), and M (manual mode). In the P-mode (program mode), this was a flexible program mode. Although it was not completely fixed like the automatic mode, it could change the aperture and shutter combination by turning the main command disk. S (Shutter priority mode) was used when the shutter speed needed to be controlled. The main command dial could be turned to change the shutter speed. A (Aperture priority mode) was suitable for controlling the depth of field. Turning the sub-command wheel could change the aperture size. M (Manual mode) was used when the automatic mode could not complete the shooting or when the creative idea could not be achieved. The main command wheel was used to select the shutter speed, and the sub-command wheel was used to select the aperture. However, this was only a general description of the operation of the Nikon DSLR's display parameters in different modes. It also needed to be combined with the performance characteristics of different models. For example, models such as the Nikon D5100 may have more detailed descriptions of the display parameters of the model in their respective user manuals. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Setting of landscape parameters for single-lens reflex camera
When shooting scenery with a DSLR, you can refer to the following parameters: - ** Shooting Mode **: You can use P or M files. - ** Aperture setting **: Generally set to a small aperture, F-value can be set to 5.6, F11 - F13, which can ensure a larger depth of field and make the entire scenery clearer. - ** Choice of lens **: You can use a wide-angle lens with short focal length, wide angle of view, and deep field of view. It is suitable for taking photos of buildings, landscapes, and other large scenes. It can produce a strong visual impact. - ** Setting of the CPU **: If the light is good during the day, the CPU can be set to 100; if it is cloudy, the CPU can be set to 400. - ** Shutter Speed **: Generally, the shutter speed can be set to be faster. If there are special requirements (such as shooting waterfalls), the shutter speed can be slowed down. - ** Other precautions **: - Focus on avoiding being disturbed by individual protruding objects in the near and far scene. - When the brightness allowed, the aperture was reduced to obtain a larger depth of field. - Polarizing mirrors can be used to obtain better penetration (such as water or sky); gray mirrors can be used when the sun is strong, and gradual mirrors can be used when partial overexposed. - It is recommended to use a tripod to prevent blurring of the photo due to shaking. - In terms of composition, avoid placing the most attractive scenery in the middle. You can use the three-point composition, the frame composition rule, the symmetrical composition, the diagonal composition, the blank composition, and so on. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Canon lens, Nikon lens
Canon lenses and Nikon lenses were well-known brands in the field of camera lenses. In terms of Nikon lenses, the new Z-mount lenses were generally of high quality, such as holo-field compatibility and excellent corner resolution. The F-mount was limited by the caliber and the distance between the two sides, while the Z-mount had a great improvement in this aspect, especially in the wide-angle to mid-focal length section. Canon lenses, such as the RF28 - 70mm F2.8 lens, had a constant large aperture of F2.8. It was portable, and the image quality was average, even a little beyond the positioning of the silver ring lens. It also had anti-shake function. However, its price was sometimes affected by marketing routines. For example, during the 11/11 period, the price of Canon RF28 - 70mm was higher than the recommended price on the official website and did not return to normal value. These two lenses had their own optical design features, advantages, and market positioning under different camera mount systems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon 100-micro parameters
The parameters of the Nikon 100 micro (Nikkor Z macro 105mm f/2.8VR S) lens are as follows: 1. [** Weight **: 630g] 2. * * Structure design **: 11 groups of 16 lenses, including 3 low-dispersion (ED) lenses and 1 aspheric lens. 3. * * Coat design **: Nanocrystal coating, anti-reflective high-definition coating, fluorite coating. 4. * * Focus mode **: In the autofocus (AFF) mode, the focus switch between macro and non-macro mode is fast and efficient; in the manual focus (MT) mode, the focus ring's vibration and user feel comfortable, and the adjustment is smooth. In macro mode, the lever can be switched to "0.5m-0.29m" mode to shorten the search range of the AF. 5. * * Anti Shaking Ability **: Upgraded to 4.5. 6. * * Optics **: Completely suppresses the color difference from infinity to extremely close range. Outstanding performance in anti-glare, ghost elimination, and color difference reduction. No purple edges appear when shooting against the light. Excellent image quality. Even when shooting with a small aperture, there is still a good blurring level. The focal point is sharp and clear, which can meet the needs of professional macro photography. 7. * * Z-mount features **: Shorter distance between the two sides and larger inner diameter, more contacts to increase communication capabilities and more functions, and the lens also has an electronic window (equivalent to the shoulder screen in Z-mount cameras, useful in dark environments). 8. * * Focus: 105 mm. 9. * * Maximum Aperture **: f/2.8. 10. * * Maximum Magnification **: 1x. 11. * * Number of aperture blades **: 9 circular aperture blades. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Setting the parameters of an indoor portrait single-lens reflex camera
When taking portraits indoors, the DSLR camera could be set to a shutter speed of 1/80s, a sensitivity of 1500, and an aperture value below F2.8. If the aperture priority mode (UA) was used, a large aperture (such as F2.8 or smaller) could produce a blurred background effect to highlight the main character. If the character was in motion, the aperture priority mode might not be suitable. You could switch to the shutter priority mode (TV) and set the shutter speed to about 1/250s to avoid blurring the picture during the capture. In addition, the dimming mode can choose central focus dimming or local dimming according to the actual situation. If you want to shoot a close-up of a person, it is recommended to use a large aperture, medium telephoto, such as aperture F1.4, 2.0, 2.8, focal length 85mm, 100mm, 135mm, etc. If you want to shoot an environmental portrait, to ensure that the model and background can be photographed, you can use a smaller aperture, wide-angle end, such as aperture F2.8, F4, focal length 24mm, 35mm, etc. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Single lens reflex lens parameters
The angle of view of the medium focal length lens was between 40 degrees and 18 degrees, and the focal length range was between 61mm and 135 mm. The angle of view of a standard/medium-focus lens was about 40 - 55 degrees. In terms of optical characteristics, the photos taken at this focal length had the least distortion and could accurately reflect the shape of the subject. It was also relatively easy to design a large aperture. Different models of medium-focal lenses had different performance parameters in terms of distortion, dispersion, resolution, contrast, and so on. For example, the Olympus OM Zuiko auto-macro 90mm f/2.0 lens had an actual focal length of 90.44mm, an aperture of f/2.04, a pincushion-shaped distortion of 0.47%, and an edge loss of 0.3 stops at f/5.6. Minolta MC Rokkor -85mm f/1.7 lens, the actual test focal length was 85.6mm, with 0.5% barrel distortion, etc. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Canon lens parameters
Canon lenses had many parameters: ** 1. Type of bayonet ** 1. **EF** - It can be used directly on Canon's Canon's Canon 'Canon's Canon' Canon 2. **EF - S** - Canon's APS-C frame DSLR lens could not be directly installed on a full-frame DSLR. It could be used on the Eos-M series micro-lens and the Eos-R full-frame micro-lens through the transfer ring. 3. **EF - M** - Canon's Canon 'Canon's Canon's Canon 4. **RF** - Canon's Canon 5. **MP - E** - For macro photography, only MP-E 65mm f/2.81 - 5x. 6. **TS - E** - The electronic control shifted the lens. ** 2. Focus ** - The focal length in the lens model was the physical focal length. Standing in the same position, a small focal length meant a wide field of view, and a large focal length meant a good range of vision. For non-full-frame cameras, the actual use may need to consider the equivalent factor conversion according to the camera model. For example, the focal length range of the lens was 70 - 200mm, the angle of view at the 70mm end was relatively narrow, and the telescope ability at the 200mm end was better. ** 3. Maximum aperture ** 1. ** Permanent Aperture ** - For example,"f/2.8" could be set to this aperture value over the entire focal length range. For example, the EF70 - 200mm f/2.8 lens was a constant aperture lens. 2. ** Floating Aperture ** - Two numbers like "f/3.5 - 5.6" indicated that the maximum aperture changed over the entire focal length range. ** 4. Screen Level Identification ** - **L (Luxury) logo ** - It would only appear in Canon's professional lens identification information. It was the logo of the top Canon civilian lens. These lenses usually had a red decorative ring on the front end (red circle head). ** 5. Function ID ** 1. **IS (Image Stabilizer)** - This type of lens was equipped with Canon's unique image stabilizing device, which could offset the image blurring caused by hand shaking within a certain range. It was commonly used in Canon's high-end professional lenses. 2. **USM (ultrasonic motor)** - The lens using USM technology could achieve silent and fast-response autofocus. It was divided into three types: micro, ring, and NANO. There was also the STMs (Stepping Focus Machines), which were divided into two types: gear type and lead screw type. 3. **AL (Aspherical lens)** - It showed that the lens was designed with aspheric lenses to reduce the number of lenses. While reducing the weight and volume, it could provide better optical performance. It could solve the glare and edge distortion problems in wide-angle and zoom lenses, and it could also improve the optical quality of telephoto lenses. 4. **DO (Diffraction Optics)** - Lenses marked with this logo were equipped with multi-layered diffusing optical lenses, which had the characteristics of both fluorite and aspheric lenses. They were generally high-end Canon lenses. 5. ** DPS (a coating technology that optimized bokeh)** - It was commonly used in some Canon lenses to enhance the bokeh effect. 6. ** S-ud (S-ud glass) and UD (UD glass)** - The optical performance of S-KD glass was close to that of fluorite. The effect of one S-KD lens was equivalent to that of one fluorite lens, and the effect of two KD lenses was equivalent to that of one fluorite lens. These labels indicated that the lenses used the corresponding glass lenses. 7. **EMD (Electromagnetic Aperture)** - Lenses with this technology could open and close the aperture by electronic control. 8. **Float (Floating Function)** - When shooting at close range, the floating lens would compensate for the aberrations at close range to obtain better image quality. 9. ** CP (Focus Preset)** - It was Canon's high-end professional lens logo. The focus preset function allowed the lens to remember a certain focus distance. After setting the distance, the lens could automatically return to the set focus distance. This focus recovery function was even effective in manual focus mode. 10. ** ft-m (full-time manual)** - Canon lenses were equipped with full-time manual operation. The focus of the lens could be adjusted manually in the AF-mode. 11. ** Marco/macro ** - It means that the camera has a strong close-up ability. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The optical parameters on the lens
The following is some common optical parameters on the lens: 1. ** effective focal length (EFL)**: The distance from the center of the lens to the focal point. It could be divided into image focal length (the distance between the main surface of the image and the focal point of the image) and object focal length (the distance between the main surface of the object and the focal point of the object). If the focal length is too short, it will cause the field of view to be too large, causing distortion, difficulty in controlling the angle of the chief ray, low contrast, serious lens bending, difficulty in correcting the phase difference, and other problems. If the focal length is too long, the lens will be too long, which is not conducive to the miniaturized system. Moreover, the field of view is too small to meet the user's needs (FoV>60°). 2. ** Total length of lens (TL)**: It is divided into optical length (the distance between the first surface of the lens and the image surface) and mechanism length (the distance between the end of the lens barrel and the image surface). 3. ** Back focal length (BTL)**: The distance from the last side of the lens in the optical system to the image plane. 4. ** Front focal length (FFL)**: The distance from the first surface of the lens to the object surface in the optical system must be distinguished from the back focal length of the mechanism. 5. ** Mechanical back focal length (FTL/FFL)**: The distance from the last mechanical surface of the lens group to the image surface. 6. ** Field of View (FoV)**: The largest field of view that the camera can capture. It can be divided into diagonal field of view (FoV-D), horizontal field of view (FoV-H), and vertical field of view (FoV-V). The diagonal field of view is the largest, followed by the horizontal field of view, and the vertical field of view is the smallest. The so-called field of view refers to the diagonal field of view of the digital camera module. The size of the field of view was related to the focal length. Generally, the larger the field of view, the shorter the focal length. 7. ** Joules (F/NO.)**: It was the ratio of the effective focal length to the diameter of the pupil, which was used to determine the brightness of the lens. Under the premise of ensuring the same aperture, the shorter the focal length, the smaller the relative aperture should be. In general, the smaller the F/#, the larger the aperture. 8. Distortion: It is the off-axis phase difference. It is the height difference between the intersection point of the off-axis point and the main ray on the image plane and the ideal (paraxial-like) image plane. It is a function of the field of view and has nothing to do with the aperture. Distortion was divided into TV distortion and optical distortion. TV distortion was further divided into pillow type and cylinder type. Distortion is the image quality that users can easily feel. Different application scenarios have different requirements for distortion. For example, Optical-Distortion <3% is not easy to detect by the human eye, and the objective lens generally requires Optical-Distortion <2%. 9. ** relative illumination (Ri)**: The ratio of the central illumination to the peripheral illumination. If the contrast was too low, the center of the image would be bright and the surroundings would be dark (vignette phenomenon, commonly known as dark corners), which would also cause color distortion. The Ri is directly proportional to COS4 (semi-fov). Different semi-fov correspond to different theoretical values of the Ri. When the Ri<50%, the human eye can distinguish it. In serious cases, the four corners of the picture will be completely black. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Dajiang lens parameters
The following are some of the Djiang lens parameters: - **DJI PL PZ 17 - 28mm T3.0 ASHH lens **: - The lens frame was full frame (36* 24mm). The lens was used as a movie lens. The lens type was zoom. The lens structure was 11 sets of 13 pieces. The lens mount was a PL mount. The filter size was 67mm. - In terms of optical parameters, the maximum aperture was T3.0, the minimum aperture was T22, the focal length range was 17 - 28mm, the closest focusing distance at the 17mm end was 0.19m, and the closest focusing distance at the 28mm end was 0.26m. - The diameter of the lens was 78mm, the length of the lens was 117.2 mm, the weight of the lens was about 520g, the working temperature was-10 ° C to 55 ° C, the storage temperature was 10 ° C to 35 ° C, and the storage humidity was 45% to 75%. - **DJI TL 75mm F1.8 lens **: It is suitable for the 75mm medium telephoto focal length of Zenith X9 - Air lens. The F1.8 large aperture can capture a richer depth of the picture. It has a shallow depth of field and a larger amount of light. It can enhance the performance of the main body and the night scene. It weighs only 269 grams. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon fluorescence microscope parameters
Take the Nikon E600 Biofluorescence Microscope as an example. Its parameters are as follows: Total Magnification: 10 - 1000X, Observation: 2 - 500X (for 35mm microphotography); with a CFI60 telephoto optical system with a parfocal distance of 60mm; equipped with a three-eye tube; using a Nikon lens; the condensing lens is achromatic with a numerical aperture of 0.9; there are 12V-100W long-life and 6V-30W halo lamps; the objective lens plate is a six-hole objective lens changer and a six-hole DIC objective lens changer; the stage is a super-hard film coated surface; the eyepieces have a magnifying power of 10; 10 times the objective lens; The origin is Japan; The brand is Nikon; The model number was the E600. No processing; Non-cross-border goods. In addition, there was also a Nikon upright microscopic imaging system, which was equipped with 4X, 10X, 20X, 40X, 60X, and 100Xoil lenses, a fully automatic electric stage, a Nikon microscopy-specific color digital CCD', an LED fluorescent light source, and Dapi, Green, and Blue fluorescent filter. It also had Nikon's advanced image analysis and processing software, NSI-Elements AR. It is mainly used for slide sample imaging and supports basic applications such as bright-field, phase contrast, DIC, and multi-channel fluorescence photography. It has a module image processing and analysis system that can automatically take multi-channel fluorescence photos. The fully automatic software controls the lens and channel, field of view, and focal length adjustment. It has the function of big picture stitching and can perform stitching and scanning on tissue samples. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>