james_bond_007
Contributor
I am hoping someone would explain the use of the Red LEDs in some of the video lights that are being offered.
Here is my understanding...(please tell me where I start to stray)
I know that as you go deeper, the colors from the ambient light (aka the sunshine), starting with the lower frequencies like Red, start to be filtered out by the water column.
For example at 40' deep, reds will be greatly attenuated, oranges a bit too but not as much as reds, then yellows etc.
Using a red filter in this case, attenuates all the other colors, except red, and provides a better color balance image, at the expense of intensity. That is, the picture may be more balanced, but it is not as bright as an unfiltered image.
But when using a video light (essentially a White Light), the subject might be 5' or so away and maybe only a few feet most of the time. Thus if the video light can provide enough white light to illuminate the subject, the camera-to-subject distance has the effect of only filtering the reds for that short distance, not the 50' depth.
There will not be very much attenuation for a subject-to-camera distance of a few feet. The white lite should provide a fairly uniform color response from the subject.
So, what does the use of red LEDs in a video light really do for me ?
My only guess is that it is trying to act as a sort of anti-filter and trying to amplify the reds to balance out with the rest of the colors.
But it woulds seem that a better solution would be to just use white light and intensify all the colors and keep the subject-to-camera distance a reasonable value for the particular video light. In that manner, one also gets corrected Oranges, Yellows etc. , which are also being attenuated, albeit to lesser degrees than the reds.
I look forward to your comments.
Here is my understanding...(please tell me where I start to stray)
I know that as you go deeper, the colors from the ambient light (aka the sunshine), starting with the lower frequencies like Red, start to be filtered out by the water column.
For example at 40' deep, reds will be greatly attenuated, oranges a bit too but not as much as reds, then yellows etc.
Using a red filter in this case, attenuates all the other colors, except red, and provides a better color balance image, at the expense of intensity. That is, the picture may be more balanced, but it is not as bright as an unfiltered image.
But when using a video light (essentially a White Light), the subject might be 5' or so away and maybe only a few feet most of the time. Thus if the video light can provide enough white light to illuminate the subject, the camera-to-subject distance has the effect of only filtering the reds for that short distance, not the 50' depth.
There will not be very much attenuation for a subject-to-camera distance of a few feet. The white lite should provide a fairly uniform color response from the subject.
So, what does the use of red LEDs in a video light really do for me ?
My only guess is that it is trying to act as a sort of anti-filter and trying to amplify the reds to balance out with the rest of the colors.
But it woulds seem that a better solution would be to just use white light and intensify all the colors and keep the subject-to-camera distance a reasonable value for the particular video light. In that manner, one also gets corrected Oranges, Yellows etc. , which are also being attenuated, albeit to lesser degrees than the reds.
I look forward to your comments.