: Are they the same? IIRC, the OM4Ti can take into account changing light
: conditions /during/ exposure. This would me OTF, correct? But then, isn't
: TTL the same? Sorry if this is not quite Oly specific.
They are different properties of the same technique. TTL=Through The Lens
indicates that the built-in sensor is not used but instead the light
entering the lens; OTF=Off The Film indicates how it is measured: not
directly, but indirectly reflected by the film. The official full name of
the technique is called TTL Auto and sometimes TTL "OTF" Auto.
Hans
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