Hi Shel,
You're correct. You won't have to compensate for the extension with TTL
metering. The same, of course, holds true for reciprocity failure with
long exposures. The light loss occurs in the lens, so the light that
reaches the meter is an accurate gauge of exposure.
Paul
Shel Belinkoff wrote:
>
> I was talking with Mark Dalal earlier today, and he suggested
> that one thing to consider with ambient light macro work is
> the amount of exposure compensation you will need at full
> extension. I thought that if I used a camera with a TTL
> metering system, such as the LX or MX, compensation would not
> be necessary. Since I'll be bracketing a fair amount IAC,
> this might not be much of a consideration on the first project
> or two that I'm doing. But when working with a subject that
> won't allow bracketing, what do I have to be aware of WRT
> exposure compensation even though I'd be using a metered
> camera?
> --
> Shel Belinkoff
> mailto:[EMAIL PROTECTED]
>
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