Reference Guide (PDF Edition)

D High ISO Sensitivities
The higher the ISO sensitivity, the less light needed to make an exposur
e, allowing pictures to be
taken when lighting is poor and helping prevent blur when the subject is in motion. Note, however,
that the higher the sensitivity, the more likely the picture is to be affected by “noise” in the form of
randomly-spaced bright pixels, fog, or lines.
“Noise” can be reduced by enabling high ISO noise reduction. High ISO noise reduction can be
enabled using the [High ISO NR] items in the photo shooting and video recording menus.
D Hi 0.3–Hi 1.7
A setting of [Hi 0.3] corresponds to an ISO sensitivity approximately 0.3EV higher than ISO64000
(ISO80000 equivalent) and [Hi 1.7] to an ISO sensitivity approximately 1.7EV higher (ISO204800
equivalent). Note that pictures taken at these settings are particularly prone to “noise” in the form of
randomly-spaced bright pixels, fog, or lines.
D Lo 0.3–Lo 1.0
[Lo 0.3] corresponds to an ISO sensitivity about 0.3EV below ISO100 (ISO80 equivalent). [Lo 1.0]
is roughly 1EV below ISO100 (ISO50 equivalent). Use for larger apertures or slower shutter speeds
when lighting is bright. Highlights may be overexposed. In most cases, ISO sensitivities of ISO [100] or
above are recommended.
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ISO Sensitivity