SB-400 Bounce Flash

On 2012-02-20 03:53 , pago wrote:
Dear All,

According to the nikon speedlight sb-400 user manual, you should use
larger aperture settings (e.g. f3.6, f4.0, f5.6) if you wish to bounce
flash. How can this be? Can anyone explain the rationale behind
this?

Larger aperture (smaller number) needs less flash power.

As for me, I would do the opposite because a bounce flash has more
distance to travel, and therefore, to compensate, i would stop down
the aperture to allow more light in.

You stop down (higher number) to let less light in. Think of it as a
fraction instead.

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