>Date: Tue, 17 Nov 1998 21:49:36 -0500
>From: "Scott G. Chandler" <[EMAIL PROTECTED]>
>Subject: N90s, Exposure Compensation and TTL Flash [29]
>
>I'm a bit confused about the relationship of the exposure compensation dial
>and if it affects the foreground subject when using a TTL flash. I'm
>shooting underwater and am using an N90s and TTL flash. What my colleagues
>tests have shown is that the exposure compensation dial only affects the
>background of the subject while the flash's TTL circuitry maintains the
>proper foreground. If this is the case it seems the only way to darken the
>foreground is via the asa/iso dial. When this line of discussion arises
>amoungst fellow photographers there seems to be a wide variety of opinion
>as to the function and affect of the exposure compensation dial. Any
>enlightenment would be most appreciated
>
>Scott
Scott,
The exposure compensation control on the camera affects the overall
exposure. The flash exposure compensation affects the foreground exposure
level. Changing the Flash Exposure Compensation level to -1 will affect
the foreground exposure level to be underexposed by one stop from what
the system would normally set. You can easily test this for yourself by
shooting the same scene and only change the flash exposure compensation.
It is best to shoot slide film as it does not have any printer
interaction that may skew the results. If you shoot print film, look at
the negatives or instruct the photofinisher to print them all at the same
level and don't adjust for your compensation.
Ed
Ed Yost
M&M Photo Source (Authorized Nikon Advanced Systems Dealer)
800-606-6746
