The red histogram is a useful feedback tool for understanding how your strobes are interacting with the foreground subject, and how you might want to adjust them up or down based on what you see in the red channel.
- [Deke] In part two of our examination…of the elements of wide angle exposure,…we're going to take a look at…the relationship between the strobes,…the foreground subject, and the red histogram.…And the idea here is that…where underwater photography is concerned,…the real job of the red histogram…is to report how your strobes…are lighting that foreground subject.…- [Hergen] So again, as Deke mentioned,…in this movie we're going to look at strobes…and their relationship to the red channel.…So underwater, strobe light is, of course,…the major source of red light.…
As we mentioned in previous chapters,…we start losing light not just in amount,…but also color, as we descend.…Within the first five meters,…we've basically lost all red light,…so the only real red light in an image…that we're taking underwater comes from our strobes.…- [Deke] And I should just say here…that this is not just red.…We're talking about all warm colors,…so reds, oranges, and yellows,…all of them show up in this red histogram.…- [Hergen] And therefore, the red channel…
- Wide-angle optics
- Blending and contrasting exposure
- Controlling exposure with aperture
- Lighting underwater
- Shooting on walls and slopes
- Composing underwater shots
- Capturing rays of sunlight
- Going in for close focus
- Post-processing in Lightroom
Skill Level Intermediate
1. What Is Wide Angle?
5. Special Techniques
6. Post Processing
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