Gourmet single-lens reflex photography skills
Here are some culinary DSLR photography tips: 1. ** Food Attributes **: Different foods have different visual effects. Food that is expensive, time-consuming, and laborious to make often comes with a "high-class feeling." 2. ** Design **: - Lighting: Food photographers who have the pursuit of natural light as a light source, which can be divided into direct light and scattered light. Using a reflective board to guide the light from the side to the main body could create a "natural" atmosphere; using a soft board to "filter" the light or placing the dish in the shadows near the light area could obtain scattered light, which was more "soft" and less shadow. - Cutlery arrangement: Arrange the cutlery reasonably. At the same time, pay attention to the props in the photo to have a certain degree of relatedness. For example, in a photo with circular elements as the main element, maintain the unity of the elements. Even if there are many elements in a vertical shot, it will not appear messy. 3. ** Shooting angle **: - ** Aerial Shot **: When shooting vertically, if the prop elements are related, it will not be chaotic even if there are more. - [Upper-view photo: It is rarely used in food photography.] - ** Flat Shot **: Can also be used according to actual needs. - ** Using special composition angles **: For example, using the circular arc composition of the round table, when the character picks up the food, the chopsticks will be diagonally arranged to create a picture, which can make the person feel appetizing; with the shoulder of the character as the background, the eating scene can be taken from the back of the character, which can increase the sense of character immersion. 4. ** Color Match **: Try to avoid cold colors in the picture. It is best not to put two foods with large differences in color in the same photo. 5. ** Add interaction elements **: You can add characters, plants, ingredients, accessories, and other interaction elements. For example, shooting hand movements to enhance interaction, adding plants for decoration or color matching, adding toys and accessories that fit the theme to highlight the theme and enrich the content of the picture. 6. ** Backstory processing **: - ** Changing the background **: When shooting indoors, you can try changing different types of backgrounds to obtain different shooting effects. - ** Aperture adjustment affects the background effect **: A small aperture (such as f/22) can make the whole picture clear and sharp. The background and the scenery elements in the environment will be very clear, but the background elements may distract the audience's attention. A large aperture (such as f/2.8) will make the background blurred. The details and texture are not clear, but the main body is prominent. 7. ** Focus Selection **: - ** 35mm wide-angle **: It has a wide field of view, but it is not very useful for food photography. Other than shooting the "big scene" of the entire table of dishes, it has the characteristics of serious distortion and weak blurring ability. - ** 85mm **:(The advantages and disadvantages of special food photography are not mentioned. You can try it according to your actual shooting needs) - ** 135mm telephoto **: High degree of background blurring,"space compression" effect. 8. ** Other parameters adjustment **: - ** Aperture **: Control the amount of light entering the camera. Its size is represented by the f-value. The smaller the f-value, the larger the aperture, and the more light enters the camera. The large aperture was suitable for low-light environments and could create a shallow depth of field effect to highlight the main body. - ** Shutter Speed **: It is the length of time that the camera shutter is opened and closed. It controls the time that the camera sensor receives light. The faster the shutter speed, the less light enters the camera. - ** Light sensitivity **: controls the sensitivity of the camera's light sensor to light and affects the camera's ability to capture light. 9. ** Use of auxiliary equipment **: Choose auxiliary equipment according to your needs to effectively improve the shooting effect. Read more exciting novels for free
Fast hand single-lens reflex photography skills
The techniques for single-lens reflex photography were as follows: ** 1. Portrait Shooting ** 1. ** Close-up or still portrait ** - You can use a large aperture (such as F2.8) or a telephoto shot. Aperture priority mode (LV) can be used to create a blurred background effect to highlight the main character. - If you use the M file to shoot a close-up of a person, the sharpness is moderate, and the focus is placed on the eyes or key parts, and the composition can be centered. When shooting a person's scene, use the medium aperture F8, the focal length is the widest, and the composition uses the three-point method or the golden section method. Try to set the USB to 100 and use the RAW format to ensure that the face is exposed correctly. If the other parts are too black or exposed due to insufficient tolerance, you can adjust the curve later. The color of the character's clothing must be different from the background. The character's posture can be varied, such as using the props around him to make a headache, toothache, and other actions. 2. ** Shooting sports figures ** - Aperture priority mode is not applicable. Shutter priority mode (TV) should be used. The shutter speed should be set to about 1/250s. This way, the picture will not be blurred when capturing. ** 2. Scenery Shooting ** 1. ** General situation ** - It could be used in P mode, and the aperture was set to about F5.6, using a small aperture. It was best to use a wide-angle lens, which could accommodate more scenery, but it would reduce the distance of distant scenes and create a sense of distance. A telephoto lens could zoom in on distant scenes, and the sense of compression was stronger. - In the composition, avoid placing the most attractive scenery in the middle. You can use the three-point composition, frame composition rule, symmetrical composition, diagonal composition, white space composition, etc. It is recommended to bring a tripod to prevent the photo from blurring due to shaking. 2. ** In specific weather ** - ** Sunny Day **: If you use A and M gears, set the USB to 100, aperture to F8, and shutter speed to about 1/200. - ** Cloudy day **: Set the USB to 400 and use the A-grade overall dimming. You can use a filter such as a UV-ray filter to protect the mirror coating, a CPL filter to enhance the color and eliminate the reflection of the glass surface, a MD-gray density filter to reduce the amount of light entering, used for time-lapse shooting, and a gnd-gray filter to make the color of the sky gradually change. If the light ratio is too large to ensure the normal exposure of the scene, you can use black cardboard to block the sky in the lens to reduce the amount of light entering. ** 3. Shoot flowers and plants ** - The shooting mode was Aperture Prioritize Mode. You could choose a large aperture lens or a 100-micro lens. A large aperture would make the depth of field shallow, making the shot softer and highlight the subject. In the composition, you can place the object you want to shoot in the center of the picture (central composition), or you can use the nine-square grid composition. ** 4. Pet Shooting ** - You can turn on the automatic P gear and turn on the continuous shooting, or use the shutter priority mode (TV). The shutter is set to 1/250s or more, because the pet will not stay still and needs to be captured. ** 5. Shooting Night Scenery ** 1. ** Normal night view ** - Use the M file, put on the tripod, set the USB to 100 (when there is no tripod, the USB is within 1600), customize the white balance or set it to incandescent light, turn on the noise reduction, and use the RAW format. - Use a small aperture above F8 (such as F11) to make the light appear starlight effect. Pay attention to the safety shutter. - If you want to purify the scene, you can extend the exposure time (such as F22, Iso100, shutter 10 - 30S) to make pedestrians disappear from the picture; use the pre-raised reflective board to reduce the vibration of the machine, and cover the viewfinder to prevent stray light from entering and affecting the image quality. - If you want to take a light spot, use the largest aperture, the farthest focal length, facing the scattered light source, manually focus to twist out the light spot, or focus on the nearest prospect. 2. ** Portrait at night ** - Using the M-mode, the principle was to capture a double exposure (one to capture the character, one to capture the background). Mount the tripod or find a stable support, automatically white balance, set the USB to about 400, and use the aperture of F2.8 - 8 under the M gear. It uses slow sync flash and rear curtain flash mode. You can also use the night portrait gear. At this time, the flash will flash twice, once when the shutter is pressed, and once when the exposure is over. When shooting, don't leave or shake. This will make the character clear and the neon background beautiful. ** 6. Silhouette Shooting ** - Using the P-mode, the focus point was placed at the bright spot to measure the light. When shooting, the light spot was measured, and then the exposure was increased or decreased according to the actual needs. The dark part would automatically become a black silhouette. At the same time, you need to understand some basic knowledge of the DSLR camera, such as the focal length affecting the angle of view and the magnification.(The shorter the focal length, the wider the angle of view, suitable for wide-angle scenes; the longer the focal length, the narrower the angle of view, suitable for shooting long-distance objects); Aperture controls the amount of light entering the camera (the smaller the f-value, the larger the aperture); The focal length of the zoom lens can be adjusted to change the angle of view and the magnification, while the fixed-focus lens only has a fixed focal length; The anti-shake function can reduce hand-held shooting shake; Different brands of single-lens reflex cameras use different mounts, so you have to choose a lens that is compatible with the camera mount; The number and material of lenses affect the image quality and cost. The three main factors of a DSLR camera's exposure were aperture, shutter speed, and sensitivity, which controlled the exposure of the photo. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
photography homework, single-lens reflex photography
Here are some tips on how to use DSLR cameras for photography homework: ** 1. The camera settings ** 1. ** Shooting Mode ** - Try to use manual mode. Manual mode allowed the photographer to precisely control the camera's parameters according to the specific shooting scene and needs, while automatic mode might not be able to meet some special shooting requirements. 2. ** White Balance Setting ** - If there was a color difference in the photo, it might be caused by the use of household light bulbs or the camera's default automatic white balance setting was inaccurate. In this case, you can try to set the white balance to daylight mode, or try to take a photo in all other white balance modes to compare which mode is closer to the actual color. 3. ** Setting of the sensitivity ** - For example, the higher the value, the brighter the photo, but at the same time, the more likely it was to have noise. It needed to be adjusted together with other values (such as aperture, shutter speed, etc.). For example, for a small object, you can set it to 200, and for a large object, you can set it to 400. 4. ** Exposing settings ** - The exposure value was displayed as-0.7,-0.3, 0, 0.3, 0.7, 1, etc. The higher the value, the brighter the photo. You can set the exposure value to 0.3 during the test shoot. 5. ** Shutter Speed Setting ** - Shutter speeds such as 1/60, 1/80, 1/100, 1/125, etc. The smaller the decimal value, the slower the speed, the more light entering the camera, and the brighter the photo taken. 6. ** Aperture setting ** - The smaller the aperture value, the larger the aperture. The more light entered, the brighter the photo. The larger the aperture value, the smaller the aperture. The less light entered, the darker the photo. It was important to note that the aperture and aperture value were in inverse proportion. The value on the camera was the aperture value, and the result after the adjustment was the aperture. For example, a photo taken with an aperture value of 3 is brighter than a photo taken with an aperture value of 6. ** 2. Shooting Techniques ** 1. ** Composing Skills ** - Diagonal composition, triangular composition, and other methods could be used to make the picture more beautiful and stable. He could also try the full-body composition method. - When shooting, you can stagger the composition or capture the moment when the character walks by to create a picture-in-picture effect. 2. ** Basic principles of filming ** - To make the photo have a clear and distinct theme, whether it was a person, a still life, or an event, it needed to be clearly expressed to avoid ambiguity or all-encompassing. - A good photo must draw attention to the subject so that the audience could immediately notice the core of the photographer's intention. - It made the photo more concise and removed those elements that couldn't set off the subject or even distract attention. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Introduction to single-lens reflex photography
The following is some basic knowledge about DSLR photography: ** 1. Choosing a camera ** 1. ** Follow the principle of having enough ** - For novices who mainly took photos, if the budget was limited, there was no need to blindly pursue a full-frame bucket machine. Many full-frame bucket machines had comprehensive functions, but they might cause some functions to be idle. For example, for people who didn't often shoot videos, the video function would be wasted. Half-frame models such as the APSC could meet the needs of many novices. For example, Fuji had done very well in the entry-level market and had not launched a full-frame model. - When purchasing entry-level cameras in 2024, the APSC camera still had some advantages, such as the importance attached by various manufacturers, such as the upgrade of the filter in the Sony-ZV-E10II, the cost-effective model Z30 launched by Nikon, and the half-frame opening of Canon's radio bayonet. 2. ** Choose the camera first, then consider the body ** - Full-frame lenses were usually much more expensive than half-frame lenses. For example, when the prices of the A6700 (half-frame) and A7M3 (full-frame) were similar, many novices would choose the full-frame model due to price factors, but the cost of the full-frame lens would be higher when changing the lens later. - Some brands of full-frame lenses had limitations. For example, Canon's full-frame radio frequency mount was not open, and there were few third-party lenses, while the original lens was expensive. As for Fuji and Sony, there were more third-party lenses, Nikon's z-mount was open, and third-party zooming and fixed-focus lenses were gradually becoming more abundant. Pantheon lenses were basically enough, but the Sima 28 - 70 had a premium and was not easy to buy. 3. ** Take the usage of the surrounding veterans as reference ** - If there were experienced photographers around with a lot of lenses, he could borrow their lenses after he familiarized himself with the camera and changing the lens. ** 2. Basic camera operation ** 1. ** Shutter Operation ** - Pressing the shutter was divided into two steps. First, press it gently halfway (Half Past). At this time, the viewfinder autofocus symbol would flash. If there was a sound prompt, it would make a "beep" sound. This was the camera's autofocus and light measurement. After this process was completed, he pressed it a little harder. When you press the shutter, bend the first section of your right index finger downward. Use light force. Do not knock hard, hit hard, or shake. Try to find support, such as a tripod. If there is no tripod, you can use tables, big stones, pillars, trees, corners, etc. At the same time, you must control your breathing. Take a breath before pressing the shutter, hold your breath and press it again. Exhale after pressing it. If one were to shoot a moving object, due to the camera's "time lag," one had to consider the amount of time in advance. The brain had to analyze and predict the other party's movements and rhythm. 2. ** Aperture setting ** - The aperture was a device that controlled the amount of light that entered the camera through the lens. It could be adjusted by rotating the adjustment ring on the lens or the knob on the body of the digital camera. The larger the aperture, the greater the amount of light entering, the smaller the depth of field, and the smaller the f-value. When the light was strong, the aperture was reduced, and when the light was dim, the aperture was opened. When taking a portrait, if only one person was taken, the large aperture could be adjusted to blur the background and highlight the main body. When taking a group photo, a small aperture of about f8 could be set to ensure that everyone's face was clear. 3. ** Light sensitivity (USB)** - The high or low sensitivity of the camera meant that when the exposure value was the same, the higher the sensitivity of the camera, the faster the shutter speed could be used to obtain the same exposure. In a bright environment during the day, the sensitivity should be adjusted to 100 to ensure better image quality. When the environment is dark, the exposure should be increased to ensure normal exposure. However, even in a very dark environment, the sensitivity should not exceed 6400. When it is too dark, you can use the fill light. 4. ** Shooting Mode ** - ** Fully Automatic Mode (Auto)**: It is suitable for beginners or when you need to take a quick shot. The camera would automatically control the aperture, shutter speed, and so on to achieve the appropriate exposure. In some cases, it would use a flash to fill in the light. - ** Automatic Program Mode (P)**: It is suitable for users who have a certain foundation in photography and want to explore more creative control. In an environment where the lighting conditions did not change much, the camera could manually adjust the USB, white balance, etc. The camera would automatically adjust the aperture and shutter to maintain the correct exposure, and could lock the exposure value or adjust the dimming mode. - ** Aperture priority mode (A or Av)**: When controlling the depth of field is the key, such as portrait photography, macro photography, or when a specific background blurring effect is required. Setting the aperture size manually determines the clear and blurred parts of the picture, and the camera automatically adjust the shutter speed to match, helping to create the desired depth of field effect and control the exposure. - ** Shutter priority mode (S or Tv)**: For shooting dynamic scenes, when you need to control the motion blur effect, such as sports events, wild animals, or water currents. By setting the shutter speed, you can freeze or blur the action, and the camera will automatically adjust the aperture to ensure exposure. - ** Manual mode (M)**: suitable for photography professionals or photographers who have high requirements for camera control. It was used in complex lighting environments, when precise control of exposure was required, or when creating specific visual effects. All parameters, including aperture, shutter speed, and so on, needed to be manually set. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
E-commerce photography single-lens reflex camera
For the choice of an e-commerce camera, many factors needed to be considered. In terms of sensors, e-commerce cameras might have a surplus of full-frame sensors, and miniature three-quarters sensors might not be enough. The APS-C format sensor was a more suitable choice, which could provide sufficient resolution and better image quality. In terms of the number of pixelation, it was recommended to choose at least 10 - 15MP. This would meet the requirements of most e-commerce platforms for image quality and size. In terms of video functions, if there was a need to shoot videos, most DSLR cameras had high-definition video capture capabilities, but you should choose a camera with better video functions, such as a camera that supported 4K resolution or high-speed photography. The compatibility of the lens was very important because the quality and performance of the lens had a great impact on the final photo. If you already had a lens or planned to buy multiple lenses, you must ensure that the lens compatibility of the camera was good. The autofocus speed was critical when shooting moving objects. Choose a camera with a fast autofocus speed. The weight and size of the camera also needed to be considered. If you wanted to take a camera with you often, a lightweight camera would be more suitable. In terms of maneuverability, the camera with an intuitive operation interface could help the user master the usage method faster. The battery life couldn't be ignored either, because the filming process could take hours. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The influence of single-lens reflex camera on mobile phone photography
DSLR cameras had many effects on mobile photography: * * 1. Shooting Techniques ** 1. * * Focus Technique ** - DSLR cameras had a complex and precise focusing system. Traditional single-lens reflex cameras could achieve fast and accurate focusing through the use of mirrors and phase detection focusing technology, especially when shooting moving objects. During the development of mobile photography, it gradually drew lessons from similar focusing concepts. For example, the autofocus function of many mobile phones now, although the implementation method was based on algorithms, the design also pursued the convenient focusing experience of "pointing where you want to be clear" to meet the needs of users for the subject to be clear. 2. * * Exposing Control ** - DSLR cameras provided a variety of exposure modes, such as manual exposure (M), aperture priority (A or Av), shutter priority (S or Tv), and so on. The user could precisely control the amount of exposure according to different shooting scenes and creative needs. In the early days, mobile photography was mainly based on automatic exposure, but with the development of technology, manual exposure adjustment functions began to be added. This development was partly inspired by the single-lens reflex camera to meet the needs of photography enthusiasts for more shooting control. For example, when shooting at night or in special scenes under strong light, manually adjusting the exposure could make the picture look better. 3. * * Picture composition assistance ** - The viewfinder or display screen of an SLR camera could use auxiliary lines such as the nine-square grid to help the user better follow the composition principles, such as the three-point rule. Mobile photography also borrowed this method. It provided a grid line function in the camera settings to make it convenient for users to align the picture elements and take photos with a more reasonable composition. * * 2. Image Quality and Function ** 1. * * Quality Pursuit ** - DSLR cameras had obvious advantages in terms of image quality, such as light capture, noise control, and dynamic range, due to their larger sensor and high-quality lenses. This prompted the development of mobile photography to constantly seek ways to improve image quality. Although mobile phones couldn't improve the image quality by replacing large-sized light-sensitive components like DSLR cameras, mobile phone manufacturers used algorithm optimization to reduce noise and increase dynamic range, trying to narrow the gap in image quality with DSLR cameras. 2. * * Effect of background blurring ** - Through optical equipment such as a large aperture lens, a single-lens reflex camera could easily achieve a natural and beautiful background blurring effect, and the degree of blurring could be precisely controlled. In order to achieve a similar effect, mobile phone photography began to use an algorithm to simulate background blurring. Although the blurring effect of mobile phones was mostly achieved through digital smearing, and the effect was still different from that of single-lens reflex cameras, it was constantly improved under the influence of single-lens reflex cameras to meet the user's pursuit of the main body and background blurring effect. * * 3. User demand and market ** 1. * * Stratification of User Requirements ** - DSLR cameras had always been an important tool for professional photography and photography enthusiasts. Their advantages in terms of image quality and functionality met the requirements of high-end users for photography quality. The development of mobile photography was based on satisfying the daily recording needs of the public. Some users were influenced by the high-quality photography represented by the single-lens reflex camera and began to put forward higher requirements for mobile photography, such as better image quality and more shooting functions. This prompted mobile phone manufacturers to continuously improve their mobile phone photography functions to attract more users who pursued the quality of photography. 2. * * Market Competition and Discretization ** - In the photographic equipment market, there was a certain competitive relationship between single-lens reflex cameras and mobile photography. The existence of the single-lens reflex camera prompted the continuous innovation and development of mobile photography to occupy a place in the market. Mobile photography, on the other hand, relied on its convenience and the convenience of sharing on social networks to form a differentiated competition with DSLR cameras. For example, the various filter functions and convenient post-editing functions of mobile phones were also developed in the competition with DSLR cameras to meet the needs of users for fast and convenient shooting and sharing. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Image quality of a single-lens reflex telephoto lens
Different single-lens reflex telephoto lenses had their own characteristics. For example, 85mm f1.2 was easy to run out of focus when the aperture was fully open and the purple edge was a little serious, but it could present beautiful pictures when shooting portraits or still lives;70 - 200mm f2.8 was one of Canon's big three yuan, with a wide focal range and no obvious shortcomings in image quality;100 - 400mm f4, in addition to being heavy and not having a large aperture, had sharp image quality; 50mm f1.8 "small spittoon" had average image quality, but it was cheap; The 24 - 70mm f2.8 Canon lens was more versatile, but the aperture was not large enough. The RF100 - 400mm F5.6 - 8IS USM lens was light and sharp. The Canon EF50mm F1.8II had a F1.8 large aperture circle focal lens, which made the background blurred and beautiful. The Canon EF40mm F2.8ATM had advantages in workmanship, overall quality, and performance, and the picture quality was excellent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Single lens reflex laptop backpack
Here are some backpacks suitable for storing DSLR and laptops: - Lightguard Backpack LP37238-SWW (LX RV series): suitable for single-lens reflex cameras, providing all-day comfort. Made of durable materials, it has a simple storage pocket, tablet space and personal equipment space, 50:50 space separation design, can be placed in the tablet, there are two-sided hand stands, cup mesh pocket, fabric lining soft top front pocket can quickly access small items, micro camera, microphone, single-lens reflex camera, etc. Can also be placed in the laptop. - Le Jibao shoulder camera bag Tahoe BBP150 (Lake Tahoe series): suitable for men and women, DSLR micro single multi-functional portable. It is waterproof all day and has flexible storage space. The padded partition can be used to store products such as DSLR micro-cameras, tablets, tripods, mobile phones, etc. It is moisture resistant and wear-resistant. Its high-density waterproof fabric can protect equipment from bad weather such as light rain. The Cradlefit? hanging pocket can protect the tablet computer. The padded variable partition system can be used flexibly with large capacity. The shoulder strap can be adjusted to create a comfortable fit and can accommodate the laptop. - Lightguard backpack LP37176-GTL (King Kong series): An integrated solution for camera systems and camping equipment. The King Kong series second generation of easy-to-access professional protection expansion module, flexible storage space for travel equipment, all-weather waterproof, four quick-access ports, a portable belt, SlipLock? accessories external system, and an extended carrying plan. The belt can be easily fixed, and the belt can be attached to a double belt, water bottle bag, triangular cup, and quick-release belt. The tripod can be carried, and it is made of recycled environmental protection materials. It can be used to store a single-lens reflex camera and a laptop. - Lespetta Single shoulder camera bag LP37123-SWW (New Star series): A single-lens reflex micro camera bag with efficient space and fast storage. There are two colors available in four sizes of large and size backpacks to meet individual needs. It is convenient to retrieve equipment and has privacy and anti-theft functions. It is made of high-density fabric. The overall shockproof outer hard inner soft protection camera, built-in all-round waterproof cover design, long wear resistance, and can also be used to store laptops. - Orion DayPack 200: Backpack, suitable for storing a standard lens single-lens reflex camera, or a laptop. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Single-lens reflex camera with glasses
If you wore glasses and used a single-lens reflex camera to shoot, most single-lens reflex cameras had a refraction adjustment function. You can aim your eyes at the viewfinder, and after automatically focusing on an object, adjust the refraction adjustment button to the left or right until you see the clearest image. However, the position of the refraction adjustment button might be different for different brands of DSLR. It was usually next to the viewfinder. In addition, there were also photographers who said that they could see the viewfinder clearly with a single-lens reflex camera. If you feel that the image you see through the viewfinder is blurry, you can also consider putting on your glasses and shooting directly. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The format of a single-lens reflex photo
Wear the metal when installing the lens of the single-lens reflex
When installing the lens of an SLR camera, if it was not handled properly, it might cause metal wear. The following are some related situations: 1. ** Bayonet Worn **: - Changing lenses frequently would wear out the bayonet. However, under normal use, this kind of wear and tear was relatively light, and it might take a long time to show obvious effects. For example, when the wear and tear reached a certain level, it might affect the stability of the connection between the lens and the camera body. However, it was rare for such wear and tear to cause the lens to be stuck before the camera shutter's life was exhausted. 2. ** Sensing contact wear **: - For the sensing contacts on the camera and the lens that controlled the focus and aperture, the lens would also wear out during the installation and dismantling process. However, when the camera was still in its normal life, this kind of wear and tear would not affect the camera's high sensitivity and other functions, unless the machine was very old. In order to reduce the metal wear when installing the lens, it is recommended to hold the lens before twisting it when installing or disassembling the lens, and to reduce the number of unnecessary lens changes as much as possible. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>