Jan Steinman <jans@xxxxxxxxxxx> wrote:
>If it is a T-mount lens, then all bets are off for proper metering,
>because the T-mount manufacuturer has no idea about the speed of the
>lens it will be mounted on.
That is not necessary. The lens gives only a relative aperture
information to the camera. In an automatic lens, it tells the
camera: "I am open", or "I am set to x stops below open". In a T
mount lens, it is always in the open position. It doesn't make a
difference, which absolute value it is.
Christoph
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Christoph Hertzler hertzler@xxxxxxxxxx
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