On question three, just be aware of, when using the exposure compensation
system (on the back of the camera), this will, as normal is, change the
cameras "knowledge" about the film ISO speed. As a result, both ambient
light and flash illumination are reduced or increased respectively. The only
way to compensate both independently, is to use the HyM mode and read the
over/underexposure bar in the viewfinder (only PZ1p, not the non-p), and use
the dedicated flash compensation menu for the flash. However, this is a very
powerful combination, one that I really enjoy on this body!
Arnie
----- Original Message -----
From: "O'Neill, William" <William.O'[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 17, 2001 7:57 PM
Subject: RE: to PZ1-P experts. About TTL Flash
> Alex,
>
> Question:
> 1. Is the TTL flash metering region the same as the light metering? Let me
explain: if I set the exposure metering to multi-segment, will the TTL flash
use the same metering mode to decide the flash exposure or will it use only
spot, or something else?
>
> Answer:
> It is not the same. It uses an OTF sensor that provides a centre-weighted
reading. This reading is not the same as the centre-weighted reading for
normal exposure either.
>
>
> Question:
> 2. If I set PF-7 to program the IF button to set the exposure to the
background, which metering mode will it use? Let me explain again: I set the
metering exposure to spot and I pop up the flash but I would like to have
the proper exposure for background. So, as I set PF-7 to do that, I press IF
button. What happens? Does it shift to multi-segment to have the proper
exposure for background or does it use the spot metering I choose for
correction without change the flash configuration???? or something else????
>
> Answer:
> This is just my hypothesis and you will have to check it out...Since the
flash exposure is calculated real-time using a different sensor, it cannot
be used to determine the ambient background exposure. Likewise, the
multi-segment (ambient) meter cannot measure background lighting if it is in
spot mode, so for things to be consistent the multi-segment meter will have
to switch into multi-segment mode to determine the background exposure when
you press the IF button. However, check it out.
>
>
> Question:
> 3. I am using fill flash. So, I set the exposure for background and I
would like to program de flash to fill a subject that is not in the centre
spot. How can I do that without change the exposure for the background????
Is it possible with the camera metering only?
>
> Answer:
> Since the ambient and flash exposure are handled in the PZ1-p by two
completely separate systems. In this particular case, if I were using slide
film I would set the ambient exposure compensation to -0.5 and the flash
exposure compensation to about -1 and bracket a bit on the flash
compensation. For print film I would not bother to bracket as a little over
exposure will do not harm.
>
> Bill O'Neill
>
>
> -
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>
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