Slow sync flash photography

We use flash lights usually encounter the following two conditions:jvc gz-mg155 charger

Can not manually set the shutter speed

Selected in the automatic mode (auto), in low light conditions, the camera jvc gz-mg37u charger will automatically flash (unless choose to turn off the flash mode, then only turn the flash on and off flash modes), but the problem is that this automated process will be the main exposure accuracy Select a subject and as the shutter speed flash sync speed (usually 1 / 125 second, because of the camera varies), then only the subject is accurate exposure, shutter speed too fast for the camera and not consume more from the background light, this results in the background is too dark, not the performance of the night or low light environment of the atmosphere.

A jvc gz-mg130 charger file or P selected in the file, although it can not set the shutter speed, but you can select the flash mode, in addition to the above, you can choose a slow sync, and will automatically increase the shutter speed to a lower pre-curtain sync (Front-curtain sync : In the moment the shutter opens just flash flash), or rear-curtain sync (after the shutter is open will close the moment before the flash fires) for the flash, the following will be mentioned.

Manually set the shutter speed

Selected files in the camera's shutter priority or manual, then we can choose a slow shutter speed, pay attention to all the flash mode is now set after a slow shutter speed is slow sync flash, and that is before or after the curtain Sync Curtain Sync.

So what is slow sync flash?

Slow sync flash and exposure is the same time though, but the flash on the shutter open and close time and time inconsistency, is divided into Front-Curtain Sync and Rear-Curtain Sync.

If the object is in motion, the use of rear-curtain sync flash, the moving object will appear behind the path of light phenomena, it is because the moment before the shutter closes the flash before the flash, so that solidified the subject lived, but because of slow Before leaving the shutter image blur.

Front-curtain flash sync on the contrary, trace of light appears in front of a moving object, the truth is no different.jvc gr-dx77us charger