Saturday, May 21, 2011

Use of the indoor studio lights - turn-christian louboutin shoes sale

The use of the indoor studio lights flash

indoor studio

this type of flash in order to meet the high requirements of indoor shooting, the output of the flash light and color temperature has a corresponding improvement in light output power, stable output color temperature reflects the advantages of this type of lamp. Of course, bulky, often need assistance in the shooting when officers help move the lights, can not be moved to field use (large shooting available generators), these are shortcomings.

lighthouse often due to power lines and obstacles, many professional studio will use this type of ceiling lighting tracks to improve maneuverability.

When there after a perfect indoor flash, flash control is also an argument, citing lead flash is divided into radio signals and infrared flash flash cited two types of infrared flash for indoor photography using the argument , convenient and most of the current market lead flash flash support infrared devices. Flash devices for wireless signal range cited, quoted by the flash device composed of transmitter and receiver, the receiver should be inserted in the tail of flash. At present, most domestic use flash in this way, only a few need to import high-end flash-specific interface, and supporting the use of the wireless signal lead flash devices are mostly imported brands, expensive.

an indoor single light portraits

the equipment when we are ready to begin shooting flash indoors, start talking about a single lamp, a lot of photographers say advocates of a sun, of course, the sun according to the nature of a subtle change in the weather can vary greatly.

known Rembrandt light is a typical single-lamp operation, prominent figures of the three-dimensional visual centers outstanding. Light source itself also shows the beauty of the charm of a single lamp.

shooting portraits in a single lamp, the light should be noted that not too strong, as far as possible use of reflective tools such as umbrellas or reflectors weaken the strong light, the texture of the skin as much as possible to to express well. Position as the head lights in the figure above, choose a large umbrella to create a more uniform soft light.

two indoor multi-light portrait photography

indoor multi-light shooting, but also follow the principle that there is only one sun, no amount of lights, effects and only play a supporting role, the main light only one. Regardless of how the lights change, the main light is the key to the whole shoot.

When using two lights, the positive one as the main light, while the other is called as a fill light or auxiliary lights.

when using three lights, one as a main light, fill light or as the other two called auxiliary lights, better than the control, the model level is more abundant.

more lights in the indoor portrait shot, you need to pay attention to the following 3 points:

1, need to be selected according to the shooting diffusers, reflective umbrellas or soften the light as a cell covers and other accessories.

2, because the unique characteristics of the digital sensor, making the three-dimensional images would weaken, in the actual shooting, try to use the outline of light, can enhance the image of the three-dimensional.

3, indicate the following for reference only, the actual shooting but also according to the distance between the light and the people doing the actual amount of light output.

III Indoor Lamps Light Portrait cloth instance

Unlike traditional dual-lamp light the method, the main light 1 / 2 light output with umbrellas in the upper left, an auxiliary light with soft box is located right by the model after the full output used to emphasize the contours and three-dimensional models. Umbrella soft light the rich layers of detail models,christian louboutin shoes sale, support the role of light is to enhance the profile and three-dimensional characters. The lights require a relatively high accuracy of the case, the photographer can continue to debug to achieve the desired light-bit, and has always been the main light exposure amount of light to do the standard output. This cloth is suitable for digital photography light way, make models of the main structured, three-dimensional prominent, to make up for the lack of three-dimensional digital film characteristics.

four instances of light cloth interior Lamps Portrait

this picture of the fabric of light is very special, fully backlit, and it only took two plus soft box light, so light soft box models stand before the Lord, and the flight coaxial design a fill light, backlight and outdoor obtained similar results, but the light is more delicate, to better show the details of the dark side.

five indoor multi-light portrait light the instance

traditional three-lamp light the law, the main light with soft box full of light in the upper left, upper right for an auxiliary lights with soft boxes, as opening a solid color background, to make the background look up and the color is more beautiful, the models of a background light behind the set, and add a blue filter. Rich level of detail, the role of auxiliary light. The most conservative method of distribution of light security, the lights required accuracy was not much, but this is also the most mediocre of light cloth. Shooting for the first time into the studio to use.

the same light the way, extended to more than shooting or larger range of motion, we just pay attention to the direction of the main light and the irradiated area can generally only move the main light, light can be taken appropriate picture than the uniform.

six indoor multi-light portrait light the instance

this picture of the distribution of light is very special, two 1600W + softbox lighting the backlight completely, the model is to use a reflector on the direction of reflection, to illuminate the front and face models. Two side of the backlight light perfectly outline the contours of the model, the models face due to the use reflectors, and will not not level, this fabric is suitable for expression of light and the performance of male or female of a mystery, while also make models look more slender. Metering when shooting the main attention to people face side light, 1 to 2 lower and lower block, such as exactly as the face side light, light out of the film profile will disappear, resulting in overexposure.

VII, indoor multi-light portrait light the instance

this picture of the distribution of light is very special, two 400W lights + softbox about character backlit illumination profile, the main light with umbrella, to illuminate the front and the face model, and with a bottom jaw model of light to eliminate the shadow side of the backlight light two perfect outline the contours of the model and generate a strong sense of space, the main attention when shooting metering, metering subject to people's faces, while the profile of light should be stronger than the main light.

flash in a very short period of time to issue a strong light. Therefore, the shutter must be open at this moment,christian louboutin online, in order to achieve the purpose of the film exposure. This requires the flash with the shutter

flash synchronization methods are commonly used in M, X and FP, or F. M-type flash bulb sync for most of the leaf shutter, with shutter speeds of up to 1 / 500 sec. X-type is for the electronic flash or a focal plane shutter, and leaves the synchronization settings. When you use the focal plane shutter and the flash bulb, it needs to synchronize with the FP or F mode. X synchronous shutter with blades, make electronic flash sync with shutter speed at any level. Flash bulbs are used 1 / 30 seconds.

flash flash exposure is usually used to calculate the index. Electronic flash light flash index depends on the amount of candle light beam is the amount of seconds (BCPS) or effective candle seconds (ECPS) for the unit. Index with the following formula can be obtained through flash exposure needed to correct the aperture:

flash guide number to the subject matter of the distance (in units. ft) = aperture value

example, the guide number of 64, the flash to the subject matter of the distance of 8 feet:

64 / 8 = 8 aperture should be set at f / 8.

Please note that the type of flash index is calculated in feet from the unit, such as replace meters, you need to flash index divided by the above 3.28, again calculated. Some electronic flash is the use of automatic control flash flash in this category, within a certain distance, simply select a speed according to the film aperture, the flash automatically control the flash duration, to obtain the correct exposure, no need to use the above formula.

machine flash

will flash the camera directly mounted on or close to the next use,new supra shoes, the light is direct, blunt, style is poor, the back of the subject matter will be cast dark shadow, it is important for the shadow of the shadow patterns are covered. The case of color film, the shadow of deep black color distortion will give people the feeling.

besides, the flash drive will appear on the two issues, namely,

in some color photos taken with the flash on the subject's pupils appear red, because the flash from the camera too close, light is reflected back blood-rich retina of the reason. The best solution is to make the flash farther away the lens. If you can not do it, you can also open the room to take all the lights, increase the brightness of the way to solve the interior. In bright light, the pupil to contract, thereby reducing the reflection of red light. Similarly, the filming, the subject, first look at a light (such as indoor lights) look, but also make the pupil smaller.

flash of light reflection also has damaging effects on the screen, so to avoid the background when shooting those bright reflective surface, such as mirrors, windows and light walls and so on. Can not be avoided, you can adjust the shooting position, so that reflective surface with a certain angle, or flash to take down the light from another direction, we can reduce the reflection phenomenon. Glasses are also often cause a strong reflection, the solution above.

machine outside the flash

the flash from the camera to take down, so that the distance from the camera arm, or farther, so that can improve the effect of flash illumination. When the flash is located above the side of being photographed when he was photographed on the back of the projector will be on display outside. This effect of light can enhance the shape and dimension to the picture plane, a better demonstration of the true face of the object. When taking pictures in the rain and snow weather, but also the flash away from the axis of the camera lens to prevent rain or snow on the screen under direct sunlight irradiation damage. Flash in this way, the correct aperture needed exposure, can flash with guide number divided by the distance to the subject matter (not the camera to the subject matter of the distance) to obtain.



use multiple lights flash two or more flash lighting can enhance the artistic appeal of the photo, and in any environment can be more than the kind of photographic studio lighting effects.

used as the primary flash of light is often beyond the flash of the camera, mainly used to emphasize the subject matter of the three-dimensional. Its distance from the subject matter to be closer than the auxiliary flash. Auxiliary flash installed in the camera (or in the camera position), to increase the shaded lighting. Third flash for lighting the background, or the same as the backlight, as a profile light.
At this time, mainly based on the main light exposure to the subject matter of the distance may be, if necessary, and then make some adjustments with reference to auxiliary light. Does not affect the exposure of backlit subjects. Calculation in the main and auxiliary lights to flash index and their respective distances of the subject matter of the aperture value calculated. If the difference between the above two steps or two steps of aperture, then to press the small aperture (the main light aperture) exposure. If a difference of 1 / 2 to 1.5 f-stop, the smaller the aperture you need based on the longer accept the small 1 / 2 stall exposure. If both are equal, the exposure of a file when a small aperture due.

Sometimes, in order to shoot with a smaller aperture, you can make against a number of flash lighting the subject matter overlap. Lighting the lamp distance and the amount of light should be equal, calculated as the aperture value:

two lights flash index
overlapping aperture illumination of a
= 1.4 X -------- Distance


four lights flash index
aperture illumination overlap = 2.OX---------< br> from

For example, two flash , flash index of 400, a distance of 36 feet, calculated as follows:
400
aperture = 1.4X------= f/15.4 or f/16
36
in some a wider range of shooting situations, is to use a number of different parts of flash illumination, respectively. This phenomenon is basically no overlap lighting. The key point to make the correct exposure to the subject matter of each lamp are equal distance. The calculation method and single lights. Closest to the camera's flash sync with shutter, others are dependent on the sensor flash. Of course, all the lights must be placed behind a variety of scenery and not on the front of the lens.



outdoor auxiliary flash metering under the sun, the top light when shooting backlit, the flash of light that can be used as an aid to reduce the ratio. This is especially for people photography, not only can improve the lighting effects, but also to the performance of a lively character of natural facial expressions.

auxiliary light to the appropriate amount of light, not the shadow of all destroyed, or not natural. Schedule 1, the distance data is provided in a 3:1 ratio of the benchmark light. To light ratio dropped to 2:1, just from the reduction of one third of the table. To rise to 5:1, the increase of one third of the distance as long as you can. Table 2 lists the various auxiliary flash exposure value, and when along the same light, depending on the film speed, shutter speed and aperture value. In the same exposure conditions, the different changes with speed and aperture, can you can maintain the same ratio based on the change of light and the distance between the subject matter. The table on the basis of light exposure along the film sensitivity is the reciprocal of shutter speed, aperture of f/16.
Because most focal plane shutter with electronic flash sync speed up to 1 / 60 seconds (some can go to 1 / 250 second), it can be seen from the table, can be successfully used as an auxiliary flash distance range relatively limited. If a large amount of electronic flash light for the leaves of the shutter, the effective distance to much larger. For example, the flash light amount 2800BCPS, light ratio of 3:1, can be seen from the table in the 6-24 feet range distance, to select different shutter speeds. If on the flash cast a white handkerchief, you can half the distance of Schedule 1 to use.

specific use of the Schedule as follows:

1. According to the flash with a flash index of Schedule 1 from which to find the appropriate column.
2. The right direction to select an appropriate distance.
3. Upward direction and this distance to find the appropriate speed.
4. According to the shutter speed and film speed used, from Schedule 2 to find the correct exposure aperture.
5. By the speed, aperture and distance, as an aid with a flash of light to shoot.

no details, but also to determine the auxiliary flash exposure. The first method:
1. Measured with a meter the correct object in the sun exposure, select flash sync with shutter speed (for example, usually focal plane shutter is 1 / 60 sec.) According to this rate table to find out from the metering aperture.
2. Find out from the flash or manual flash index of the film.
3. Flash index divided by the aperture value is the 2:1 ratio of flash light and the distance between the subject.
4. To change the light ratio can be translated as follows and then the distance: the distance X1.5 = the distance light ratio 3:1, from 5:1 X 2.0, is a light in the distance. Color film of the light ratio should be 2:1 or 3:1; black and white, compared with 3:1 to 5:1.
second method:

1. Flash guide number divided by the distance to come to the subject who needs aperture.
2. Will no longer accept the small aperture of a file, the light is the 3:1 ratio; receive small second gear, the light is the 5:1 ratio.
3. Was measured with a meter the exposure value under the sun, according to the selected aperture to find the required shutter speed. If the speed can be synchronized with the flash to shoot here. If not, change the lights to the appropriate distance to the subject matter, to give the desired aperture and speed prevail. add flash site



light in the room with the flash photography, flash light, the brightness of the scene often than the brightness of light that revealed traces of artificial light, to the detriment of the real picture atmosphere. To avoid this phenomenon, you can choose a lower shutter speed, and before the flash (and not in front of the camera) plus a neutral gray filter to reduce light intensity. Lower light intensity, you can use a larger aperture. Large aperture and low shutter speed can make the site more time of light exposure to the Gan Guangpian. So that the photos look more natural,

No comments:

Post a Comment