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quanz
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Quote:
Originally Posted by sarahsboy18
The pic that D3v1L80Y posted and I think you were asking about has more of a motion blur behind it not a focal length blur.... The only way I know of to get a "motion blur" effect behind the subject is to use a slower shutter speed or longer exposure time (around 1/60 - 1/15) And have both you and the subject move together at the same speed through the location. By keeping the individual in the same part of the picture and moving through the room the subject will remain fairly sharp while the background will have the motion effect. You can also try rotating around the subject quickly while they continue to stay turned toward you... These can be really tough techniques to master... but as D3v1L80Y showed us it can have awesome looking effects... even by accident

That being said if someone knows an easier way please tell... this method is really a pain.
flash plus slow shutter works in aiding this effect becasue the flash is fast and bright enough to freeze the motion of the subject, this can be seen in multiple strobe type photo's


if anyone is wondering why this effect happen becasue of the f stop here is a short explination


when you have an f stop liek 1.8 you are letting in more light, you do this by using more of the lens. the downside to this is that when you use more of the lens, and the lens has a curve to it. As you use more of the curve you get less in focus becasue the optics of the lens dont allow light from those great angles to be seen in focus.


f 22 uses a smaller part of the lens, this means almost everythign is in focuse becasue nothign falls outside of the curve of the lens.


its really beyond my skill to explain it any better than that, so I apologize if it ddint help.
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