Olympus XZ-1 Manuel des trucs et astuces - Page 18
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XZ-1 Tips
page 18 of 29
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XZ-1 to FF conversion
camera, wide-angle, 6mm to 28mm (35mm equiv) divided by 6mm (XZ-1) = 4.67 ... f/16
divided by 4.67 = f/3.5. 'Sunny 16 rule' becomes 'Sunny f/3.5' ... reciprocal of ISO 100
(used to be film speed ASA).
At ISO 100, f/5.6 "8421"
Beach/snow/sky ... 1/1600 to 2000 ... or 1/400 at 5.6 with ND3
Bright sun, real shadows ... 1/800
Weak sun, soft shadows ... 1/400
Cloudy bright, no shadows ... 1/200
Overcast, open shade ... 1/100 or lower.
DOF depth-of-field
...post on Dpreview by sderdiarian
At the long end of its zoom, the XZ-1 has an aperture with a diameter of 9.6mm at
112mm equivalent, which compares favorably to the 9.8mm maximum aperture at the
83mm equivalent of a typical APS-C 18-55 F3.5-5.6 kit lens. It means the XZ-1 should
give at least as blurred a background and do so at something much closer to the
traditional portrait focal length. Furthermore it means the XZ-1 should give greater
control over depth-of-field than a Micro Four Thirds kit lens, since they tend to offer
7.5mm at 84mm equivalent.