macro backgroundThere were many ways to control the background of a macro camera:
- ** Use artificial background **: You can use colored or black cardboard. Black cardboard is more commonly used. If you want to shoot a more natural effect, you can choose pure green or mottled green cardboard, but avoid using reflective cardboard to avoid impact on the subject.
- ** Illuminate the main body with a flash **: Use the flash as the main light source to illuminate the main body and blur the background. If the background was a solid color, the position of the flash was not critical. If a hand-drawn mottled background was used, it needed to be placed outside the focus of the camera to make the mottled pattern on the cardboard look softer and blurry.
- ** Control the light with the flash **: Since the flash can completely control the light, the output power of each flash can be adjusted individually. If you want to highlight it on one side of the main body, you can increase the power of the flash on that side to freely set the light ratio. Use a flash on the right and left side of the main body. When the power is the same, the surrounding light effect can be shot. Increase the power of a flash and combine it with the aperture value to shoot the effect of a stronger light source in the left and right directions.
- ** Control the background with a flash **: Add a third small flash close to the cardboard behind the subject. By moving the flash close to the cardboard, the background can be brightened or darkened. The same effect can also be achieved by turning on or off the power. In some cases, dimming the content behind the subject can make the subject more prominent.
- ** Create a black background **: First, use a black cardboard; second, use two flashes. When the two flashes are turned on and the aperture of the camera is Ü/ 16 or Ü/ 22, even if there is a green cardboard behind the subject, it will turn black (the result of light decay). This technique can be used to shoot a black background in the wild at noon on a sunny day. With an aperture of Ü/ 8 or Ü/ 11, sunlight was enough to illuminate the background; if the aperture was completely reduced and the high-speed flash sync reached a shutter speed of 1/1,000 seconds, the background would be completely black. Sometimes using a black background can make the main body stand out. If there is a lack of separation between the flowers or if the flowers merge with the black background, you can use the third flash to backlight the main body, creating a halo or edge light to increase the drama.
- ** Cloudy Day **: When shooting on a cloudy day, the background is dark. If you want to capture details, you can lower the shutter speed to let the surrounding light enter the camera sensor. Try to use slower and slower shutter speeds until you achieve the desired effect. In this case, you need to use a tripod, especially when the shutter speed is reduced to 1/30 of a second.
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What is macro fiction?Macro fiction can be defined as a form of storytelling that takes a wide-angle view, exploring extensive events and concepts. It might have multiple interwoven storylines and a focus on big-picture perspectives.
macro photography methodHere are some macro photography methods:
- ** Choice of angle **: For example, when shooting insects, you can find a unique angle to highlight the main features. For example, when shooting damselflies, you can highlight their big eyes and find a suitable angle to express the photographer's feelings.
- ** Picture composition technique **: In terms of composition, you can use the line composition method. Let a line run through the picture and embellish it with insects. For example, use vines as rhythmic lines. When the insects climb to the appropriate position, you can shoot them to make them look cute and beautiful.
- ** Shooting timing **: If the subject is insects, which are easy to fly away, you can choose to go out and shoot around 5 a.m. At this time, most insects have not started to move, so it is easy to shoot.
- ** Using the camera's characteristics **:
- ** Use macro lens **: Professional macro lens has its unique advantages. Its image sharpness is extremely high, with a 1:1 or higher magnification. The closest focusing distance can reach 30mm-50mm. It can shoot at a close distance to enlarge the details and show a new microscopic world. In addition to macro, it can also take into account various subjects such as skits and portraits.
- ** Consider lens replacement **: Close-up lenses can be installed in front of the lens as a replacement for macro lenses, but the image quality will be reduced and the control will be more complicated.
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Lighting for macro photographyLighting for macro photography refers to the technology and equipment used to illuminate small objects at close range. The goal was to create a perfect balance between shadows and highlights to highlight the beauty of the subject and reveal its subtle differences, allowing the photographer to evoke emotions and tell stories in the image by controlling the interaction between light and the subject.
In macro photography, proper lighting was very important. Light affected all aspects of photography, such as color, contrast, focus, and depth of the image. The subjects of macro photography were often small and fragile. Some subjects were easy to disappear in the shadows or overexposed under strong light. Precise control of light could convey the beauty, texture, and details of the subject, giving the audience an intimate experience of the subject.
The key concepts of macro photography lighting are as follows:
1. ** Strength **: It measures the intensity of the light shining on the subject. By adjusting the intensity, you can create a dynamic range of brightness and contrast in the macro photo, shaping the visual effect.
2. ** Direction **: The direction of the light is like the angle at which the performer on the stage projects the light. It determines the position of the shadows and highlights on the subject. Different angles will greatly change the mood and visual texture of the photo.
3. ** Diffuse **: Can be regarded as a natural light softening filter. Using a diffusing device or regulator to disperse light could reduce the glare of shadows and produce soft and uniform illumination on the entire subject. It was an important means to achieve a delicate balance between light and shadow.
4. ** Color temperature **: It is measured in Kelvin. It is similar to the filter in the photo application. It can determine whether the macro lens is warm (gold) or cold (blue). Mastering the color temperature helps to convey emotions and atmosphere through the interaction of light.
5. ** contrast **: refers to the contrast between the brightest and darkest areas in the image. The use of contrast can enhance the dramatic effect, emphasize the texture, and draw the audience's attention to specific details, thus creating a visual narrative.
The lighting equipment used in macro photography included flashes. The flash at the top of the camera is more convenient, but pay attention to its strong shadows. You can use a diffusing device to soften its effect to achieve balanced lighting.
In the actual shooting, different lighting conditions had different shooting techniques. For example, it was more suitable to shoot macro shots on cloudy days. The light was uniform, the light ratio was balanced, and the composition was good. On sunny days, due to the influence of clouds, trees, buildings, etc., there would be high and dark light areas. The subject should be selected to be shot with more uniform light. If it was all in the sun, the picture could be taken with less exposure to preserve the details, and the brightness could be repaired later. The lighting in the room was more complicated, and the principle of choosing a scene with uniform lighting was also followed.
There were also some special lighting techniques, such as using fairy tale lights (miniature LED lights) for creative macro photography. Fairy lights came in many colors, and different colors would bring different tones to the photo. Because the fairy tale lights were not very bright compared to the ambient light, it was necessary to shoot later in the day. If the subject had shadows or it was cloudy, the shooting could start a few minutes before sunset. When using fairy lights, the lens aperture is usually selected to be as large as possible (such as f/2.8). After measuring the subject, the image can be deliberately underexposed. You can also use a macro lens or a fast lens such as 50mm f/1.8. When using the fairy tale lamp, the lamp can be placed directly behind or in front of the main body. When placed at the back, the shooting distance will be shortened if it is under high magnification or large aperture. The distance should be increased if it is further away from the subject or when using a narrow aperture. When placed in front, it should be close enough to the lens to maintain out-of-focus.
In the case of insufficient light, using a flash is a better choice. When there is sufficient light, you can achieve pure natural light shooting, but sometimes in order to achieve certain shooting effects, you can use light even if there is sufficient light, such as to highlight the subject, simplify the messy background, or to make the subject appear special (such as when shooting a young ladybug that has just shed its skin). On the other hand, if there is enough light in the environment, do not use the light when it should not be used. You can judge whether the light is used from the perspective of the subject's eyes and legs.
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How to macro-edit a novel?Start by looking at the overall structure. Check if the plot flows smoothly and if the beginning, middle, and end are well-connected.
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2024-10-05 02:00
macro photography and business casesThe book,"Microscope photography and business cases," used examples as the main thread to share the professional photography techniques of macro photography with readers and answer common questions for beginners. For example, in macro photography, there were many techniques for shooting common subjects such as insects. If the timing was good, such as in the morning, evening, after the rain, cold weather, when insects were eating or mating, they were relatively quiet and easy to shoot. If the insects flew away, they could stay in place (because they had the habit of nostalgia like dragonflies) and wait for them to come back. They could also find insect breeders to obtain more filming opportunities. Under the premise of ensuring the safety of the insects, they could take temporary enforcement measures to calm down the disobedient insects, or they could create their own filming environment.
In terms of equipment, he mentioned the shooting parameters of different equipment such as the D700 with the Tenglong 90mm macro lens and the Nikon 105VR macro lens, such as aperture, exposure time, and so on. In terms of mobile macro photography, the entry-level players had to understand the macro function skills of the mobile phone, choose the right subject, maintain stability, and use natural light. In order to advance, they had to learn to use an external macro lens, manually focus, adjust exposure, use background blurring, etc. There were also examples and parameters for different scenes. These were all knowledge that macro photography could apply to business cases or daily photography.
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The Eulerian equation of macro economicsFor a functional, the necessary condition for the curve connecting the points and the sum to be an extreme curve (namely, optimization) was called the Eulerian equation. It is a second-order differential equation that can be expressed in three forms: (20.2a),(20.2b), and (20.2c). Formula (20.2a) is the original form of the theorem, Formula (20.2b) uses the index to represent the partial derivative and lists the independent variable form, Formula (20.2c) is the form after using the chain rule to find the derivative of and omitting the independent variable. This equation was equivalent to the first-order necessary condition for static optimization. It was important in dynamic optimization problems such as the lifetime utility of a family. By analyzing the partial derivative of the function, the curve that made the functional reach the extreme value could be determined.
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Huawei nova 9 macro lensThe rear of the Huawei nova 9 had a 2-million-pel macro lens, while the rear of the Huawei nova 9 Pro had a 4cm macro lens.
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Smart Shield Anti-macroIn World of Warcraft, there was a setting for the anti-macro shield. For example: #show Spell Reflection /stopcasting /cast (nostance:3, equipped:shields) Spell Reflection; (stance:3) Defensive Stance;/equip one-handed weapon set. With such a macro command setting, one could perform a spell reflection operation when certain conditions (such as posture, equipment, etc.) were met.
There was also a simple anti-shield macro: #showtool tips Spell Reflection/s Reflect/cast Spell Reflection.
These macro commands could help the player achieve the shield counter operation more conveniently in the game and reduce the amount of operation.
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