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Olympus µ 720SW - Rugged Digital Camera - Test Shots - Full Res Crops
A range of test shots are shown over the next three pages. Here, the full size image has been reduced for bandwidth purposes, and a crop taken from the original full resolution image has been placed below it in order for you to gain an appreciation of the overall quality. The following pages consist of resized images so that you can evaluate the overall exposure. For those with a dial-up connection, please be patient while the pages download.
Note: These ISO test shots were taken indoors using diffuse natural daylight, automatic exposure and white balance. 10 points to the first person to correctly identify all five lenses. Hint: They’re not all from the same system.
0.5 sec, f4.3, ISO 64
The low-speed 64 ISO mode provides the best image quality, with virtually no visible noise, and good contrast and detail. Compression artefacts are still visible though, despite this being SHQ mode.
0.5 sec, f4.3, ISO 100
Oddly the metering system chooses exactly the same exposure at 100 ISO. As a result the image is slightly over exposed. Already at this setting there is some slight colour specking in the mid-tone areas.
0.4 sec, f4.3, ISO 200
At 200 ISO the colour noise is spreading into the darker areas, and some fine details are beginning to vanish into the haze.
1/5th sec, f4.3, ISO 400
Increasing to 400 ISO, the colour noise has spread into the lighter areas of the image as well.
1/8th sec, f4.3, ISO 800
This isn’t actually much worse overall than the ISO 400 shot, although it is still very noisy.
1/13th sec, f4.3, ISO 1600
At the highest normal ISO setting there is a lot of image noise, but there are many cameras that are worse at this speed.
1/15th sec, f4.3, ISO 2500
In Available Light mode the image size is restricted to 3MP, but shoots at (allegedly) 2500 ISO. The image isn’t much more noisy than at 1600 ISO, but is it worth it for a measly 1/100th sec gain in shutter speed?