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Flash is a device which provides additional light to a scene. It can be used to help fill in a dark area of a photo, to provide light if there isn't sufficient light to begin with, or it can help to improve the composition of a particular photo, by creating your own source of light.
4
votes
Is it acceptable in photography to never use flash?
Another point is that Modern DSLR with high iso low(ish) noise make flash less and less necessary. … Clearly for a given low light there is more requirement for flash in the former case than the later! …
2
votes
What exactly is flash sync speed, and should it be a factor in a buying decision?
A higher flash sync speed is useful if you wish to shoot with flash at large appeture (because you want low DoF) but are shooting at a subject that has bright backlight. … If your going to want to use flash in bright light (for dynamic range) and low appeture for DoF then YES. Otherwise NO. …
2
votes
Why is my camera limited to a shutter speed of 1/250th when the flash is up?
Both these articles give very detailed explainations:
tutorial: high-speed flash sync
maximum-flash-sync-speed
Worth mentioning that High Speed Sync (HSS) on Nikons including the D7000 is refered to as … This can be set on the D7000 via:
menu -> Custom Settings Menu -> e Bracketing/flash -> Flash sync speed. …
5
votes
3
answers
21k
views
Why is my camera limited to a shutter speed of 1/250th when the flash is up?
Sometimes in bright backlight and with large aperture (f2.8) I want flash at high shutter speeds. … What's the logic behind the limiting of the shutter speed when using flash? Is there anything I can do to get flash + faster shutter speeds? …