In the case of unsatisfactory natural light, the use of external light can effectively improve the light conditions. Compared to pure natural light shooting, there are many advantages to using artificial light. The direction of light, the strength of light, and the color of light can all be freely controlled, creating a light atmosphere that photographers want.
在自然光線不理想的情況下，使用外拍燈可以有效地改善光線條件。相比單純的自然光拍攝，利用人造光拍攝的優勢有很多，光的朝向、光的強弱以及光的顔色等因素都可以實現自如的控制，從而營造出攝影者想要的光線氛圍。
A flash is arranged behind the character to create a retro-reflective light effect, which later brightens the picture.
在人物後方布置一盞閃光燈營造逆光的光效，後期提亮了畫面。
Although natural light has a natural and natural advantage, natural light can very well represent the scene atmosphere at the time of shooting, but natural light is often affected by weather conditions, and sometimes it does not meet the shooting needs of photographers. The use of external flash can help make up for the lack of natural light, and the requirements for shooting time and shooting environment are more relaxed.
雖然自然光有著真實自然的優勢，自然光可以很恰當地表現出拍攝時的現場氛圍，但是自然光常常受到天氣情況的影響，有時候並不能滿足攝影者的拍攝需求。而使用外拍閃光燈有助于彌補自然光的不足，並且對于拍攝時間和拍攝環境的要求更爲寬松。
With the use of an external photo flash, you can freely control the light in the shooting scene, and combine the flash and natural light to create the light conditions that the photographer wants to express. In addition, adding the flash in natural light can not only control the contrast, but also adjust the color temperature, and sometimes it can be used as modeling light. Outer shot lights show a strong texture, distinct layers, and rich details.
使用外拍閃光燈可以自如控制拍攝現場的光線，通過組合閃光燈和自然光，營造出攝影者想要表現的光線條件。另外在自然光中加入閃光燈，既可控制反差，又能調整色溫，有時還能當作造型光使用。外拍燈呈現出的畫面效果質感強烈、層次分明、細節豐富。
The flash is a point light source. In addition to the reasonable setting of the lamp value, the photographer can also adjust the brightness and range radiated to the subject by adjusting the distance between the lamp and the photographed person. In general, the closer the flash is to the subject, the stronger the light effect on the subject, and vice versa.
閃光燈爲點光源，除了對燈值的合理設置之外，攝影者還可以通過調節燈與被攝人物的距離來調節照射到主體身上的亮度與範圍。一般來講，閃光燈越靠近被攝主體，其對主體表現的光效就越強烈，反之則與環境更爲融合。
Single lamp lighting method
單燈布光法
The most common method of single-lamp shooting is the front side light illumination of the naked light, the light is rich in texture, and the picture is clear and sharp, which can well represent the three-dimensionality of the character. When shooting, pay attention to the light ratio control of the background and the character's subject. Sometimes a single light is used to create the backlighting effect. When shooting, you need to set the corresponding lamp value according to the ambient light, try to make the artificial light and the ambient light merge into one, in order to avoid destroying the environment.
單燈拍攝最常見的方式是裸燈前側光照明，光線富有質感，畫面清晰、銳利，能夠很好地表現人物的立體感。拍攝時要注意背景與人物主體的光比控制。有時也會利用單燈營造逆光的光效。拍攝時需要根據環境光設置相應的燈值，盡量使人造光與環境光融合爲一體，以避免破壞環境氛圍。
1, soft box as the main light
1、柔光箱作爲主燈
At four o'clock in the afternoon on a cloudy day, the light is dark and soft. The child sits on the deck of the pier and arranges an external light with a softbox in front of the character to increase the exposure. The light quality is soft and the light and shade transition naturally to better reflect the skin texture of the character.
拍攝于一個陰天的下午四點，光線暗而柔和。孩子坐在碼頭的甲板上，在人物前方布置了一盞帶柔光箱的外拍燈以增加曝光量，光質柔和，明暗過渡自然，從而更好地體現人物肌膚質感。
2, single lamp to create side backlight
2、單燈營造側逆光
On a cloudy evening, the light is dark. A naked light is arranged on the left rear side of the figure, and the distance is about two meters, creating a side-reflecting light effect. The light quality of the naked light is hard, forming a relatively light and dark transition. The background is darkened, and the human face is the brightest area in the picture.
陰天的傍晚，光線較暗。在人物的左後側布置一盞裸燈，距離約兩米，營造側逆光的光效。裸燈的光質較硬，形成了比較硬朗的明暗過渡。背景被壓暗，人物面部是畫面中最亮的區域。
3, single lamp to create the front side light
3、單燈營造前側光
Photographed at around 4 pm on cloudy days, the light was dark, and a flash was placed at 45° to the right front of the character to illuminate the face and increase the level of light and shade transitions. Shooting with a small aperture reflects the lines of the reed in the background. These upwardly extending lines make the picture full of upward tension.
拍攝于陰天下午4點左右，光線較暗，在人物右前方45°布置了一盞閃光燈，照亮面部並增加明暗過渡的層次。采用小光圈拍攝，體現背景中蘆葦的線條，這些向上延伸的線條使得畫面充滿了向上的張力。
Use a combination of natural light and artificial light to shoot. The effect of clouds was added later, adding to the atmosphere of the picture.
利用自然光與人工布光相結合的方式拍攝。後期添加了雲朵的效果，增添了畫面氣氛。
4, single light to create backlight
4、單燈營造逆光
In cloudy weather, in order to create a backlighting effect, a flash was placed at 45° to the rear of the character and 2.5 meters to the left. A reflector was placed on the front right side of the character at 45° to fill the face and formed a light. Beautiful eyes light. Later use magenta filters to change the color of the sky, making the picture show a warm feeling of the sunset.
陰天拍攝，爲了營造逆光的光效，在人物左後方45°，高約2.5米的位置布置了一盞閃光燈，在人物右前側45°的位置布置一塊反光板爲面部補光，並形成了漂亮的眼神光。後期使用洋紅色的濾鏡改變了天空的顔色，使得畫面呈現出夕陽時段的溫暖感覺。
The large aperture and small depth of field creates a blurred foreground and background, which makes the picture have a virtual level.
大光圈小景深營造出了虛化的前景和背景，使畫面具有了虛實層次。
5, positive light + external light
5、正側光+外拍燈
Around 10:00 in the morning, the sun shines from one side of the forest to form a positive light effect. Because of the cloudy weather, sometimes in the sun, and with the shading of the brim, in order to make the face of the figure get more light, a flash is arranged at 45° to the left of the figure, about 2.5 meters from the figure, about two meters high, The lamp value is 1/2. In order to obtain a blurred background, after using a large aperture, the shutter speed will be increased, which makes it difficult to control the exposure of the character's face and clothes. The Canon camera can ensure that the output of the external light makes up for this at a high speed.
早上10點左右，陽光從樹林的一側照射過來，形成正側光光效。由于是多雲天氣，陽光時有時無，再加上帽檐的遮擋，爲了使人物面部獲得更多的光線，在人物左側45°布置了一盞閃光燈，距離人物約2.5米，高約兩米，燈值爲1/2。爲了取得虛化的背景，在使用大光圈後必將提高快門速度，這樣就很難控制人物面部和衣服上的曝光，佳能相機在高速度下能夠保證外拍燈的輸出彌補了這一點。
At the instant of the shooting, the sun was drilled out of the clouds and the shutter speed was increased in time to reduce the exposure.
拍攝的刹那，太陽從雲層裏鑽了出來，及時加快快門速度以減少曝光量。
6, side backlight + outdoor lights
6、側逆光＋外拍燈
The ambient light is a sidelight, and a flash is placed in front of the character to fix the focus because the child is in motion. With the aperture to maximize the blurring of the background, the water droplets are evident in the backlight.
環境光爲側逆光，在人物正前方布置了一盞閃光燈，目的是爲了定焦，因爲孩子處于運動中。用光圈最大限度地虛化了背景，水珠在逆光下非常明顯。
Shooting with a large aperture in a backlit environment is easy to create glare.
逆光环境使用大光圈拍摄很容易形成炫光的效果。
7, single light fill light to prevent virtual focus
7、單燈補光防止虛焦
Photographed around 3 pm, the sun is enveloped in smoke, and a high-speed flash is placed on the front of the character (approximately 30° from the sun's angle) to prevent the virtual focus caused by the large aperture. Late coloring makes the picture warm.
拍攝于下午3點左右，太陽籠罩在煙霧中，在人物前側（與陽光夾角約30°）布置一盞高速閃光燈，防止因爲光圈太大而造成的虛焦。後期調色使畫面呈現出暖色調。
The extension line of the bridge across the river and the railings in the foreground make the picture full of lines.
過江大橋的延伸線與前景處的欄杆使畫面充滿了線條的美感。
Double light lighting method
雙燈布光法
In the cloudy evening, the lighting is dark. In order to obtain better image effects, two external flashes are used to meet shooting requirements.
陰天的傍晚，光線較暗，爲了獲得較好的影像效果，采用了兩盞外拍閃光燈以滿足拍攝需求。
The dual light lighting makes the picture more three-dimensional and vivid, and the texture is richer and more delicate. The use of dual lamps has increased the difficulty of technology, especially the issues of light ratio, incidence angle, and distance from lighting need more detailed design and consideration.
雙燈布光讓畫面效果更加立體、生動，質感更爲豐富、細膩。雙燈的運用在技術上增加了難度，特別是光比、入射角度和布光距離等問題都需要更細致的設計和考量。
1, folder type cloth light
1、包夾式布光
The figure below uses the front and back of the character to create a light clip. The main light is located at a distance of about two meters and a height of about 1.5 meters at 45 degrees from the front left side of the figure; the auxiliary light is located at a distance of about three meters and 45 degrees from the right side of the figure, and has a height of about two meters. The light ratio of the main and auxiliary lights is 1:4, which emphasizes the light efficiency of the backlight.
下圖采用了人物前後包夾式布光。主燈位于人物左前側45°約兩米的距離，高度約1.5米；輔燈位于人物後右側45°約三米的距離，高度約兩米。主輔燈的光比爲1:4，重在突出逆光的光效。
Taking the model as the center, a light cloth in the form of light is used before and after. The main role of auxiliary light is to reflect the texture of the surrounding environment and sketch the outline of the character.
以模特爲中心，前後采用夾光的布光形式。輔助光主要作用是體現周圍環境的質感及勾勒人物輪廓。
2, auxiliary light construction side backlight
2、輔燈營造側逆光
The following figure uses two lights to light, the main light is located at a distance of about three meters in front of the character, the auxiliary light is located at a position about 45 degrees to the left of the person's back, providing a side-reflected light effect, making the screen more layered and three-dimensional sense.
下圖采用了雙燈布光，主燈位于人物正前方約三米的距離，輔燈位于人物左後測約45°的位置，提供了側逆光的光效，使得畫面更具有層次感和立體感。
3, flash + soft box (soft box as a supplementary light)
3、閃光燈+柔光箱（柔光箱作爲輔燈）
In dark and rainy days, the light is dark, and a softbox is arranged at 45° to the left of the character's left side to create a backlighting effect. A naked light is arranged at 45° on the left front side of the figure to illuminate the face of the person. Another important reason is to prevent the coke from being used, because the child is in motion, he must first set the focus when shooting, and wait for the swing to swing to the middle. Coke.
陰雨天光線較暗，在人物左後側45°布置一個柔光箱，營造逆光的光效。在人物左前側45°布置一盞裸燈，一方面照亮人物面部，另外一個重要原因是爲了防止跑焦，因爲孩子處于運動中，在拍攝的時候先定好焦，等秋千蕩到中間的時候合焦。
The camera-specific flash can be equipped with many light-effect accessories. The addition of a diffuser can make the light quality soft.
外拍專用閃光燈可以配備很多光效配件，加裝柔光罩可以使光質變得很柔和。
