Flash Trick Using Ambient Light
Posted November 5th, 2007 in [hide]
The time the shutter stays open really doesn’t matter indoors when using a flash. A bright pulse lights up the room for 1/10,000 to 1/100,000 of a second; the shutter curtain seems glacial by this standard. Naturally, whether the shutter ’speed’ is 1/250 sec or 1/160 sec won’t amount to a noticeable difference. The flash has already frozen the scene in this case.
Outdoors, shooting with more ambient light, or a very reflective subject will change things. Your flash has a maximum sync speed listed in its specs telling you the fastest shutter speed you can get away with. Light will continue to flood your camera’s sensor even after the flash stops firing, and can ruin an exposure. Read the rest of this entry »
