Flash Duration Quiz: t.1, t.5, IGBT and Motion Freezing

Go beyond basic flash photography into the engineering details that matter for freezing action. This quiz covers t.1 vs t.5 duration, IGBT technology, and the technical factors that determine whether your flash can freeze motion.

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Quiz 33: Flash Engineering, t.1, t.5, and Action Freezing

t.5 flash duration is:

t.1 flash duration is:

Which is more representative of motion freezing?

For freezing motion in a dark studio, the effective exposure time is often:

In bright ambient light, motion freezing is limited by:

Lowering flash power on many speedlights often:

HSS works by:

In HSS, freezing motion becomes:

Tail cutoff (IGBT) flashes typically:

Studio pack systems often freeze motion best at:

If you see ghosting in flash photos, common cause:

To reduce ambient contribution you can:

ND filters with flash allow:

Flash color temperature can shift with:

The cleanest action freeze setup is often: