CANON 380EX, flash compensation w/bounce cards

When employing bounce flash,using a device such as the Lumiquest Pocket Bounce or an index card angled over the head of my 380EX flash, should I use my ElanIIe's flash compensation feature to increase output?

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Lumiquest's site says light loss is 1.3 stops yet adds that no compensation is required for AUTOMATIC flashes- what about Canon's E-TTL flashes such as my 380EX? I'd appreciate some advice regarding this approach when shooting indoors, in both a "normal" or large interior, as well as outdoors when using fill-in flash.

No compensation is required for bounce flash. In E-TTL mode, your

camera meters the subject reflection of the pre-flash through the lens

and instructs the flash how much power to use for the exposure.

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Use flash exposure compensation only for difficult situations:

<LI> a dark-toned subject that you want to remain dark (use "-" FEC)

<LI> a light-toned subject that you want to remain light (use "+" FEC)

<LI> a very small subject with a distant background (use "-" FEC)

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I guess it will depend on the distance of the subject you are shooting

at. The more distant your subject are the greater chance that your

flash "might" not be able to cope up.

Alvin,

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If the distance is too far, no amount of flash compensation is going to help. The flash will already be putting out its maximum power.