It is because there is some non standard, non linear thing going on
and they want you to be cautious. Base ISO is established by an
internationally agreed upon standard and it is the lowest ISO with the
best quality it can produce. The L settings give you a lower than base
ISO which may be useful, but with a slightly degraded quality. The H
settings are there if you want to use them, but the engineers are
telling you they really do not recommend it without some thought about
the consequences.
Winsor
Long Beach, California, USA
On / December 23, 2007 CE, at 3:53 AM, Chuck Norcutt wrote:
> What I don't understand is why Canyon and Nykon don't simply label the
> ISO boost settings for what they are. The 5D isn't too bad to use
> since
> there's only L (50) and H (3200). But the D3 has LO 1, LO 0.7, LO
> 0.3,
> HI 0.3, HI 0.7, HI 1, HI 2. Why should the user have to mentally
> translate this stuff if using an external meter?
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