Increasingly, manufacturers are coming out with cameras and speedlights that support wireless TTL flash operation. What this means for you is a simplified approach to using dedicated flash units off camera—especially multiple speedlights, alone or mixed with other light sources. With wireless TTL you’re free to move the off-camera flash a few inches or a few feet here or there, not to mention modifying the light in any desired fashion, and all without having to recalculate exposures, use a flash meter, and link everything together with wires. The camera’s metering system does the math for you. Beyond that, wireless TTL assures you that all speedlights on and off camera will fire in sync.
Color calibration is the key to obtaining an accurate reproduction of what you saw when capturing the image, and what is reproduced on screen or paper. It’s long been considered a bit of black magic as to how it is done, what with terms like gamma, color temperatures, luminance, and the like as part of the mix, but the simple fact is that unless you’re working on a calibrated display you don’t quite know whether the greens, blues, or other colors you are seeing are actually what everyone else is going to see, or what you’re getting when you look at the print you’ve made.
I always enjoy trying out the best new high-end products. It’s fun, but more important it tells me how good the best performance can be. But when reviewing color management tools I realize that photographers are not color scientists or computer programming experts, so I thought I’d start this review with a bit of a tech briefing on why they are important to all photographers who want to get the most from their work.