Moonlight

by Jakub

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The TTL groups are metered individually by the commander. The commander sets their power levels so that all groups are equal at the subject (regardless of their distances or their modifiers, etc). Normally one light is group A and one light is group B (to meter them individually). But both equal is flat light, and for best lighting results, we should set ...


0

If the internal flash is used as a Commander to control remote TTL flash(es), it HAS TO flash commands to the remote before the shutter opens. It is the Commander, it must Command (by flashing). It flashes commands (addressed to each enabled group), which are a request for a TTL preflash from each group. The remote (or remotes) answer in turn with a ...


0

No, the transmission of zoom information is not done, because it is pointless. As Birfl said, the flashes are likely at a very different distance than the lens, and any lens zoom value would be totally meaningless to the flash (if it is not on the hot shoe). Main flash up close (5 feet), camera maybe 8 feet for perspective, and fill light behind the camera ...


3

No. With CLS, this control is not possible (Canon's wireless system for flash can zoom flashes remotely--however, Canon's wireless flash can't do 2nd curtain sync while Nikon's can). However, if you use the Yongnuo YN-622N triggers with a YN-622N-TX transmitter, or Phottix Odins, you will have remote zoom control over your flashes, but it may only be by ...


4

A flash on the camera's hot shoe is in a known location relative to the film plane. From that, it's easy to calculate where to place the zoom head so the light covers the area the camera actually sees. The extra energy spent lighting the area seen by a 24mm lens when the actual focal length is 85mm would simply be wasted, and that saps the batteries and ...


1

Flash (manual or TTL) exposure varies with subject distance (and ISO and aperture too, but also subject distance). Twice the distance is exposure two stops down. So as you walk around the room shooting pictures, or you are chasing kids running around, then many cases are surely DIFFERENT situations, different distances, etc. With manual flash, you have to ...


2

In a wedding, with on-camera flash, bouncing off the ceiling, walking around taking pics of people dancing, etc. Does a TTL flash have advantages, and if so, what? The main advantage is speed. Given that event shooting is mostly about anticipating moments at the event, and the nature of events being that you usually only get one chance at capturing ...


1

Which flash helps? and in what areas does it help? I'm sure you're familiar with the difference between automatic exposure modes (e.g. Program) and manual mode on your camera. The difference between TTL and manual flash is similar. With TTL, the camera measures the exposure from the flash and the scene and adjusts the flash power to create a reasonable ...



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