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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: The Olympus E-330 has a range of ISO settings from 100 to 1600 in increments of 1/3rd of a stop. For the sake of simplicity and bandwidth we will only look at the whole-stop settings. These shots were taken indoors using domestic incandescent lighting (a reading lamp) and the incandescent white balance setting.
0.8 sec, F5.6, ISO 100
At the lowest ISO setting the E-330 produces an exceptionally smooth image and accurately captures subtle variations in tone.
0.4 sec, F5.6, ISO 200
Taking the sensitivity up by 1EV the image is still very smooth, and the slightly faster shutter speed has reduced vibration. I need a new tripod.
1/5th sec, F5.6, ISO 400
Moving up to 400 ISO there is a little noise in the darker areas of the shot, and a hint of colour degradation in the mid tone areas, but the picture is still very good overall.
1/10th sec, F5.6, ISO 800
800 ISO is outside of the recommended range (100-400), and it’s easy to see why. There’s quite a lot of noise and patches of random colour have appeared.
1/20th sec, F5.6, ISO 1600
At the maximum ISO setting there is a good deal of noise across the entire image, especially in the darker areas. Avoid this setting.