Sony ILCE-3000 - Manual (Page 48)

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48
The flash range (approx.)
The range of the flash depends on the ISO sensitivity and aperture value.
F2.8 F3.5 F5.6
ISO 100
1 m – 1.5 m
(3.3 feet – 4.9 feet)
1 m – 1.2 m
(3.3 feet – 3.9 feet)
–
ISO 3200
4 m – 8.5 m
(13.3 feet – 27.8 feet)
3.2 m – 6.8 m
(10.6 feet – 22.3 feet)
2 m – 4.2 m
(6.6 feet – 13.9 feet)