Basic knowledge of micro-single fixed-focus lens
The basic knowledge of the micro-single fixed-focus lens was as follows: * * 1. Strengths ** 1. * * Excellent image quality ** - In general, its performance in terms of resolution, out-of-focus imaging, anti-glare ability, and distortion control was better than that of a zoom lens of the same grade. For example, when a fixed-focus lens was used to shoot a landscape, it could more clearly show the details in the distance, and the distortion at the edge of the picture was smaller. 2. * * Portableness ** - The structure of the fixed-focus lens was relatively simple, the design complexity was low, and the focal length was single. This made the body of the mirror more compact, and it was easy to carry while ensuring better image quality. For example, when traveling, a small fixed-focus lens would not add too much burden to the luggage. 3. * * Large aperture characteristic ** - It was easy to achieve a large aperture with a fixed-focus lens. Compared to the common "big three-dimensional" zoom lens, its aperture was usually larger. A large aperture could obtain a shallow depth of field, thereby achieving a better background blurring effect. In portrait photography, it could highlight the main body and make the separation between the character and the background more obvious. * * 2. Different focal lengths and lens recommendations (Canon as an example)** 1. * * Wide-angle ** - The RF16f/2.8 was the recommended lens. Although there were more wide-angle zooming lenses, the quality of the lens was high and the price was relatively cheap (about 2K). 2. * * Short focal length ** - For half-frame cameras, 24mm and 35mm lenses were good. They had a larger aperture and anti-shake function, but 35mm lenses were more recommended. For full-frame cameras, 35mm lenses were also recommended. It was a relatively standard human lens, and the price was basically around 4K. The 28mm lens cost about 2K and was also available as an option. 3. * * Middle Jiao ** - I recommend the RF85 f/2 lens. The RF50f/1.8 was not recommended. Unless the price was around 1K, the image quality was poor when the aperture was fully open. The probability of purple edges was high and serious, and the focus was slow and noisy. If the budget was sufficient, the RF85f/1.2 was also a good choice. The 85mm focal length was recognized as the king of fixed focus portraits, providing good blurring and photo effects when shooting outdoors. 4. * * Telephoto ** - The RF100f/2.800 micro lens was a classic. It was suitable for macro and close-up shots and cost about 10K. In theory, the photorealistic effects of the RF135f/1.8 were better than the RF85f/2. The blurring was more obvious and the atmosphere was stronger, but the price was about 15K. 5. * * Ultra Telephoto ** - If you had to choose a fixed-focus lens, you could consider the RF800f/11, which was about 1K more expensive than the RF600f/11. For users who were familiar with using the 600mm lens to find and track targets, the 800mm lens was also easier to control. However, in the field of super telephoto lenses, zooming lenses were more popular because it was easier to find a target. However, the fixed-focus lens did not have an absolute advantage in all aspects: * * 3. Current development situation compared to zooming lenses ** 1. * * In terms of image quality ** - In the past, fixed-focus lenses were much better than zoom lenses in terms of image quality, but now in the era of micro-lenses, the image quality of mainstream brands (Canon, Soni, Nikon) had greatly improved. Although there was still a small gap compared to the top fixed-focus lens, the gap was not obvious compared to the mid-range fixed-focus lens or even some old top-notch fixed-focus lenses. In some aspects, the zoom lens even performed better. In terms of satisfying the needs of most commercial photography (not especially those that needed a large aperture), the large three-dimensional zoom lens was a good choice because of its high work efficiency. 2. * * Large aperture characteristics ** - Large apertures were no longer exclusive to fixed-focus lenses. There were already brands that had introduced super large aperture zoom lenses, such as Canon's RF28 - 70mm f2.0 lens, which could achieve a constant f2.0 large aperture in the common focal length of 28mm-70mm. It could replace many ordinary f1.8 aperture fixed-focus lenses, and the quality of each focal length was excellent. Tenglong, Sima, etc. also had similar large-aperture zoom lenses. As technology developed, there would be more and more such lenses. 3. * * Video shooting ** - At a time when video shooting had become a mainstream creative method, zooming lenses had an advantage. Video shooting required a large zoom range, constant aperture, stable image quality, and good anti-shake performance. There were many zoom lenses that met these conditions, such as the 24 - 105mm F4 zoom lens. For video shooting, the need for a fixed-focus lens was reduced because the video did not require a large aperture (a large aperture would make the depth of field of a large-sized sensor device too shallow, which was not suitable for video subjects; for small-sized sensor devices, a large aperture could also be achieved in a zoom lens). However, for plane photography, high-quality, large-aperture fixed-focus lenses were still the first choice for many photographers, but they were more often used in conjunction with zooming lenses rather than a single choice. 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What is a fixed-focus lens suitable for?
The fixed-focus lens was suitable for shooting various subjects, including portraits, scenery, indoors, and environments. Canon's 35mm fixed-focus lens was suitable for shooting culture and scenery. It was especially suitable for shooting small scenes of culture and scenery. It focused quickly and was often used to shoot landscape portraits and indoor portraits. Canon's 50mm fixed-focus lens was a standard lens. Its angle of view was similar to that of the human eye. It was suitable for shooting long-distance scenery and people. It had a bright and blurred effect. The quality of the image was excellent and practical. It was the first choice for group photos. Canon's 85mm fixed-focus lens was the golden focal length of portrait fixed-focus lenses. It was suitable for shooting portraits and had good image quality and practicality. As for the 135mm fixed-focus lens, some people called it a conscience lens. It was cheap and practical, so it was popular with everyone. In general, the fixed-focus lens was suitable for shooting various subjects, and the image quality was better than the zoom lens.
Nikon 200F2 fixed-focus lens
The Nikon 200mm f/2G ED VR II was a professional portrait fixed-focus lens, also known as the "air cutter." It could handle exciting moments in sports events, but it was best to use a tripod to shoot because the lens was heavy, about 2930g, and the camera weighed more than 4100g. The lens had excellent resolution and sharpness. It used a super ED lens to suppress the dispersion phenomenon, and with a nano-crystal coating, the dispersion control effect was especially good. In terms of performance, before the aperture of F4, the blurring was natural, and the sharpness reached its best when the aperture contracted to F4 - F5.6. The sharpness of F8 began to decline. The anti-shake feature was VR II, which could increase the shutter speed by about four stops. When the anti-shake function was turned on, a relatively clear and sharp image could be obtained regardless of whether it was in Normal mode or Active mode. Its parameters were: the lens weight was about 2930g, the diameter x length (extended from the lens mount) was about 124mm (maximum diameter) x 203.5mm (calculated from the lens mount), the closest focusing distance was 1.9m, and the filter size was 52mm. It was a fast telephoto lens with a shock absorption function of VR II. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Canon 400f5.6 fixed-focus lens was ridiculed
Although the Canon 400mm f5.6 fixed-focus lens had many advantages, there were also some aspects that were ridiculed. In terms of aperture, its maximum aperture was only f5.6. In the case of insufficient light, it might affect the shutter speed, resulting in poor shooting results. At the same time, it would also affect the background blurring effect. There was a lack of anti-shake function, and it was easy to blur when shooting with a hand-held camera. In terms of focusing distance, the closest focusing distance was 3.5 meters, which would be limited when shooting close-up objects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Is the Yongnuo 35 fixed-focus full-frame lens?
Yongnuo had a variety of 35 fixed-focus lenses, such as the YN 35mm F2 Nikon Z-mount, YN 35mm F2S PDMS, YN 35mm F2CC Youth lens, etc. They were all full-frame lenses. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fixed focus lens for full-body portrait blurring
If you use a 50mm F1.8 fixed-focus lens to shoot a full-body portrait and achieve a blurring effect, you can start from the following aspects: 1. ** Aperture setting **: Use aperture priority exposure mode and use a larger aperture, such as F1.8, but F1.8 aperture may not be very good. You can also choose to shoot at an aperture between F2 - F3. If the aperture was reduced to F2.8, F4.0, or even F8, the blurring effect would be worse. 2. [Distance between character and background: Keep the character as far away from the background as possible.] If the character was close to the background, such as a wall, a tree, or a bush, the background would be difficult to blur, but if the character was slightly away from the background, it would be easier to blur the background. 3. ** Choice of subjects **: When shooting children, the background blurring effect is often stronger and more beautiful than when shooting adults. 4. ** Shooting Range **: When shooting an adult, try to shoot a half-body portrait. This will help to achieve background blurring, and the blurring effect is often not obvious when shooting full-body photos of adults. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Do you use a single-lens reflex camera or a micro camera for micro movies?
If you choose a DSLR, some DSLR, such as Canon 5d4, 1dx2, Nikon d500, d850, etc., have 4K or even super-capture functions. Moreover, the DSLR video shooting function is convenient and easy to use. It is solid and durable, and its performance is stable and reliable. There is no problem of heat, crash, and poor battery life when shooting videos. However, the video function of the DSLR was weaker than that of the mini-camera. If you choose a micro camera, like the S series of the A7 series (such as the A7S3), it is the main video shooting. It has super high-sensitivity performance, strong video shooting performance of 4K 120P with auto-focus, professional color configuration, strong focus and auto-focus ability, and five-axis anti-shake function. The video quality of the Pantheon gh5 was one of the best in its class. The 4K 10bit 4:2:2 internal recording quality was not inferior to many more expensive DSLR or micro-single cameras, and it also had five-axis anti-shake. Fuji's XT4 had 6.5-speed anti-shake, strong autofocus, and 240P full HD video capture in addition to 4K. In addition, the micro-single was mainly responsible for the "camera" work in the business. It was suitable for shooting dynamic images such as micro-movies. The quality was good, the price was cheaper than high-end cameras, and the functions were comprehensive. In short, both DSLR and micro cameras could be used for micro film shooting. They could choose according to their own needs in terms of function, image quality, budget, and so on. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Does a single-lens single-camera have a lens?
" Standalone " usually meant that it only had the camera body and did not include the lens. Therefore, a single DSLR camera did not have a lens. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon 7200 manual focus lens
There were some key points when using a manual focus lens on the Nikon D7200. Some manual focus lenses may not have the integrated Nikon manual lens focus prompt function. On the Nikon D7200, although the 50mmF1.8D lens did not have a body focusing motor, it could use the D7200's body motor to drive the lens focusing component to achieve autofocus. When the D7200 could not autofocus, the possible reasons included the focus distance exceeding the closest focus distance of the lens, the camera was set to manual focus mode, the focus point of the telephoto lens was not suitable, there was no obvious light and dark boundary near the focus point, the light was too weak, the focus screen was shifted, the focus screen was blocked by dust, the camera was seriously out of focus, the focus unit was damaged, and so on. In terms of manual focus, for example, when shooting star trajectories, the focus mode can choose single-point focus.(landscape, portrait, or building, etc.), adjust the camera shooting mode, choose the lighting angle, use the raw format to balance the light sense to achieve the best effect, and pay attention to the image quality. During the focusing process, gently press the shutter and wait for the focus to be completed before completely pressing the shutter to shoot; You can also turn the mode dial to M, turn the main command dial to select the shutter speed B (bulb), turn the auxiliary command dial to select the aperture, press the shutter button to start the exposure after focusing, and press the shutter button again to end the exposure. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
General knowledge of zooming lens
A zoom lens was a camera lens that could change the focal length within a certain range. It had the following characteristics and relevant common sense: ** 1. Function ** 1. ** Change the field of view, image size, and scene range ** - The shooting range could be changed by changing the focal length, which was very beneficial for the composition of the picture. Without changing the shooting distance, it could obtain images with different angles of view and different sizes, thus meeting a variety of shooting needs. 2. ** Multipurpose in one shot ** - A zoom lens could act as several fixed-focus lenses. For example, when traveling, using a zoom lens could reduce the number of photographic equipment and save time to change lenses. ** 2. For the applicable crowd ** 1. ** Light Requirement ** - This included many old players who might not be able to carry heavy photography equipment as they grew older. For them, a light zoom lens was more efficient and could make them have fun. 2. ** Phone photography turns to camera photographers ** - There was a large group of mobile phone photographers, but the telephoto ability of mobile phones was weak. Some users who weren't satisfied with the phone's photography performance began to play with the camera. The lightweight zoom lens was attractive to them. 3. ** A real player as a backup camera ** - Even experienced photography players would choose a lightweight zoom lens when they went out with their family and friends (non-creative scenes), such as the Tianya Mirror, which could meet the needs of easy play and shooting. ** 3. Image quality and performance ** 1. ** Picture Quality ** - As for the light and large zoom lens (Tianya lens), if it was not compared with other lenses, the quality could meet the requirements. In places where the air was clear, such as Western Sichuan, Xinjiang, Xizang, and other places, the difference in image quality between a dog head (ordinary shot) and a cow head (high-end shot) was not obvious (intuitive feeling). Moreover, the image quality could be solved through technical means, such as stacking multiple frames and using a tripod. 2. ** Colors ** - Color could be achieved through post-processing to a certain extent, so color wasn't the biggest shortcoming of a zoom lens. 3. ** Focus and reaction speed ** - The focus and reaction speed of the light and large zoom lens were its biggest shortcomings. Compared to the high-end lens (Bullhead), there was a clear gap, so professional photographers rarely worked with this type of lens because they needed speed to capture the moment. ** 4. Selection ** 1. ** Beginner's recommendations ** - The Canon 50 - 1000 was a super large zoom lens that was suitable for students. 2. ** Selection basis ** - In recent years, the large zoom lens had greatly improved in terms of image quality and focus response. For example, the bellows phenomenon had been reduced, and the image quality could be seen even when there was no comparison. The closest focusing distance could also be used for close-up shooting. For photography beginners or users who paid more attention to the experience rather than the quality of the film, they could choose the zoom lens according to their own situation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Basic Knowledge of Metaphysical Knowledge
He recommended a few good novels. " Heaven's Path Forum " was a fantasy novel written by me. After Luochuan transmigrated, he found that the secret realms opened by the Heaven's Path Forum were very familiar. For example, the martial arts and martial arts worlds. He originally thought that it was a book similar to a cultivation chat group, but it turned out to be in the language of ten thousand worlds. It could be used to cultivate from a low-level martial arts realm to a high-level martial arts realm. It was just that the chapters were a little short. " Yearning for Life " was Hu Daodao's work. Su Bai transmigrated to become an intern director and finally became a big shot in the entertainment industry. There were many characters and the information about them was very detailed. " Dark Arts Immortal Gate " was a Xianxia novel written by Yin Wei. The little beggar relied on the jade pendant and Taisui to embark on the path of immortal cultivation. He went from the sects of the Tang Empire to the overseas of China. It had a unique style, such as the summoning of beasts and magic treasures. The moves were very powerful. " It's clearly a water shadow, but it doesn't even know how to use water escape." It was a light novel written by the Sunset Songster. It was very interesting when the main character was hunted down and ridiculed. "Douluo: Travelling through Qian Xun Ji, Megaturing Bibi Dong", composed by Elegant Ending, Qian Xun Ji traveled through Douluo Continent, bound to the system to conquer the continent, with many characters and wonderful plots. While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!