View Full Version : Exposure Compensation with Manual Lens?
yngve
11-19-2009, 12:22 AM
Just wondering, what does exposure compensation do with a manual aperture lens?
I have a fully manual Nikkor lens, and when i use the exposure compensation it looks like it adjusts only the ISO, not the shutter speed, or am i wrong?
Any way to use this to my advantage?:smile:
Im new here btw, Hi everyone!
Im an Independent filmmaker from Norway.
illusivethanos
11-20-2009, 04:46 AM
It adjusts the shutter speed as well, and you can clearly see that when there is flickering in the picture, usually from fluorescent lights..
jeracravo
11-20-2009, 09:09 AM
why does fluorescet light causes flickering? because of the frequency or something like this?
James0b57
11-20-2009, 10:23 AM
why does fluorescet light causes flickering? because of the frequency or something like this?
Fluorescent lights blink or fluctuate at a rate faster than is perceived by our eyes. Our eyes retain a residual image of sorts. That's why a spokes on a bicycle wheel blur and why flickering images can create "movies".
A camera has much higher refresh rate, so if the frame rate (and shutter speed, but less so) is not in sync, or slower than a fluorescent light, than the flicker effect will materialize, since some of the frames will be captured while the fluorescent light is in between flashes.
Feel free to use this phenomenon as an artistic effect. :banned:
jeracravo
11-23-2009, 04:46 PM
thanks for your explanation!