New answers tagged gels
The rapid change in light level caused by the flash will be detected by rod cells in the eye. These cells are responsible for detecting movement and do no see in colour so changing the colour of the flash will not decrease the change of it being noticed.
It will still be quite noticeable. Even at very low power a flash is hard to miss. A flash set at 1/128 power is seven stops dimmer than the same flash at full power, yet it is hard for a person to tell the difference just by observing the flash fire. This is probably due to the fact that the irises of the eyes of people in a dark location are enlarged and ...
Very little diffusion happens, which is why gels look clear and not cloudy, but gels absorb certain frequencies of light, so the total output is reduced. If your camera and flash support TTL metering, then the camera should compensate for the light loss however unless the camera has RGB metering it can't compensate properly and may require you dial in some ...
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