And as corresponding error phenomenon, is to use flash light should be out of this state

1, when should consider using flash light, in addition to the extremely individual situation natural light source has been very perfect outside. The perfect, including light, light mass, light ratio, color temperature, tonal, modelling and so on each aspect. In fact natural lighting conditions it is difficult to achieve completely satisfying. So the use of Camera Equipment flash it is very frequent. 2, flash should have certain of TTL photometric function, such use up more convenient, let our compensation can be calculated from a relative rather than absolute value start, energy and accurate. But does not necessarily need all kinds of advanced TTL function, in fact, these functions not only accuracy improving co., LTD., and limits the lights turn shook his head, for speech against righteousness. So, a lamp that have a stable TTL function of light can, different kinds of TTL function, in the familiar with its performance after, can make accurate compensation. Want to completely compensation principle from speaking is not realized, with camera metering system completely from exposure compensation is not the same reality. If let my choice, I would rather have a power is enough big, color temperature stability, can shake head lamp; Don't with a senior TTL function, I what all can't control lights (a typical example is Canon 220 ex)
3, flash light should be rare in facing the main body of the lighting condition, and so few are in various advanced TTL state. At the same time, if the existence of TTL function, we can let the traffic signal, not light command fuselage, so in most field light can be neglected, M file is use a flash best gear: aperture control of the depth of field and effect, the lamp output will automatically follow aperture go, don't worry; Shutter control environment the proportion of light, to reasonable fit. So M when truly realized give full play to the fuselage and flash automatic function. And in flash photography condition, P file is completely give up of body and control of Flash Trigger flash, A file to give up the environmental control of light than the light.
4, blindly believe that flash light of all kinds of TTL function and exposure measurement, rather than blindly believe in general camera shooting time evaluation photometric results or the central key average photometric results as well as may cause failure of exposure. At the same time, we always is on the basis of creation theme required to camera photometric results are fixed, so rarely appear totally good exposure compensation time. Similarly, do flash photography, don't do flash compensation is hard to imagine. In fact to the realization of different texture and the level, the realization of different light ratio and tone, and light environment suitably, are all need a lot of calculation and experience. This calculation is not flash index, ISO and distance between aperture calculation, as not sunshine 16 principle calculation general, it is to make compensation relative value calculation, such as the eleven partition exposure method calculation. Analogy the be clear at a glance. So with lights do not flash compensation practices, with use ShaGuaJi, solely to machine control, what is the difference? The camera's metering system completely from exposure compensation is not the same reality. If let my choice, I would rather have a power is enough big, color temperature stability, can shake head lamp; Don't with a senior TTL function, I what all can't control lights (a typical example is Canon 220 ex)
5, in addition to exposure to correct and meet creation goal, but also a very important, about gone a TIPS that is light quality and color. Express different main body to play to different creation goal, need different light. Due to the luminous area is small, so the flash to realize the hale and hearty light is very easy. But we do not always need hale and hearty light, this time, can change the light qualitative attachment is very important. Maybe we need to downy light, need directional strong light, etc. So similar jump lamp, the dozen, reflector, soft light box, cellular, condenser tube, reflective card, soft cover these things is necessary items, and almost a lamp will be used. On the other hand, we need colour temperature is not always is 5500 k, we need to tonal all are not pure white. So the flash with filter is also the necessary accessories, often take their emotional illuminant, will be the expression of theme we bring strong emotional rendering. So with lights don't these accessories, is far from use flash photography the most flexible interesting function.
6, flash can be used as the main light source, can be used as auxiliary illuminant, can be used as a manufacturing eyes light means, can be used as a complementary method, can be specialized for light background, or become the means of complementary color to the background. Such a function is rich, all run out of coloring, flash are capable, so don't limit the use of flash range, creatively with lights, is good use flash light of fundamental principles. Of course, if not a particular purpose, with light that the highest ideal of look not to come out with the light, which is similar with the girls make up. Because our purpose is to better express theme, better express the author subjective feeling, not to use light and with light.
7, think flash only used to light up the main body function
8, according to 6 ~ 7 this principle, then use lamp should also be from machine than in machine be of use, with manual with more than automatic transmission. Gradually after the rich experience, the use of manual and deplaning flash, can get a lot of creative freedom. Specific how to use should be based on the site condition and creation goal to carry out. But certainly, in machine top a direction, only to be Camera Flash automatic file a kind of effect, affirmation is to have.
9, according to the analysis of the above all, in fact, serious flash photography, a lamp is far from enough. Due to the environmental light source is very rich, so flash to create natural performance, often need more only light work together. At the same time modelling, profile, the main light auxiliary light background light, etc., there are a lot of modelling requirements. So, with good light, often a not enough. However, don't think to much light collaborative work is a very difficult thing, need expensive equipment. Actually very cheap equipment can do.