I know this has been gone over before, but I read about a person who
used cloth to cover the output of the T-20 to cut the light in half
during fill flash. I would imagine this would have to be done in manual
mode, or the TTL or auto functions would just extend the flash time to
compensate? How would you know how much cloth to use to cut the light in
half? I guess you could use 10ft as distance and asa 100 film speed, and
a flash meter to experiment with how much cloth. Then using those
numbers, you could calculate for other distances and film speeds. Any
thoughts would be appreciated. John.
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