Below are sample crops from an indoor photograph at each of the Olympus Stylus Tough 6000's ISO settings. When available, a crop from the Fuji Finepix F100fd at the same ISO setting is shown too. These are both ultra-compact cameras with automatic controls. However, the Fuji Finepix F100fd is not rugged.
Images below are all unmodified 100% crops from their respective cameras. The ISO and white-balance were set on camera but exposure was fully automatic, not that there is a choice on either camera.
These crops help determine which ISO settings can be acceptably used on these cameras. As noise increases, most cameras compensate with noise reduction which introduces softness. The result is that, while you can partly reduce noise at the expense of details, the maximum acceptable print size gets smaller as ISO is increased. The point at which a print become unacceptably noisy is a matter of personal taste. |
Olympus Stylus Tough 6000 |
Fuji Finepix F100fd |
While both cameras increase noise steadily at each ISO, the Fuji Finepix F100fd keeps an advantage of roughly 2 stops in terms of noise and sharpness. On the Olympus Stylus Tough 6000, ISO 800 is quite noisy but still usable for small prints, despite the increase in blue channel noise. By ISO 1600, colors have significantly shifted on the Olympus, all the while the Fuji keeps a much nicer image.
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