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Kodak V570 Exposure


Saturation & Hue Accuracy
Vibrant, slightly oversaturated color (especially reds and blues), often a slight warm cast.

In the diagram above, the squares show the original color, and the circles show the color that the camera captured. More saturated colors are located towards the periphery of the graph. Hue changes as you travel around the center. Thus, hue-accurate, highly saturated colors appear as lines radiating from the center.

Most consumer digital cameras produce color that's more highly saturated (more intense) than found in the original subjects. This is simply because most people like their color a bit brighter than life. The Kodak V570 oversaturates red, blue, and green tones quite a bit, though many consumers may be pleased with such bright color. Where oversaturation is most problematic is on Caucasian skin tones, as it's very easy for these "memory colors" to be seen as too bright, too pink, too yellow, etc. Here, the V570 also fell victim, producing pinkish skin tones in many cases.

The other important part of color rendition is hue accuracy. Hue is "what color" the color is. The Kodak V570 performed pretty well in this regard, though there was often a slight warm cast to its images.


Exposure and White Balance

Indoors, incandescent lighting
Pretty good color with the Incandescent white balance setting, though warmer results with Auto. About average exposure compensation required.

Auto White Balance +1.0 EV Incandescent WB +1.0 EV

Color balance indoors under incandescent lighting was warm and reddish in Auto white balance mode, though the Incandescent setting resulted in more pleasing results (though still with a slight reddish cast). The Kodak V570 required a +1.0 EV exposure compensation boost for a good exposure, about average for this shot. Overall color is a bit dark and a hint red here, making the blue flowers very dark and purplish, and Marti's skin tone a little too pink. Our test lighting for this shot is a mixture of 60 and 100 watt household incandescent bulb, a pretty yellow light source, but a very common one in typical home settings here in the US.

Outdoors, daylight
Pretty good color balance, with bright colors, though slightly reddish overall. Some overexposure under high-contrast lighting.

Auto White Balance, Auto Exposure Auto White Balance, Auto Exposure

Outdoor shots generally showed a slightly bright exposure with heightened contrast under harsh lighting. Shadow and highlight detail were a little limited, but still fairly good. The camera typically required less exposure compensation than average, as the default exposure was usually best outdoors.

See full set of test images with explanations
See thumbnails of all test and gallery images

High resolution, 1,100 lines of strong detail.

Our laboratory resolution chart revealed sharp, distinct line patterns down to about 1,100 lines per picture height, with extinction at around 1,600. (Slight color artifacts were visible in the full-sized res target shots, beginning with the lower line frequencies.) Use these numbers to compare with other cameras of similar resolution, or use them to see just what higher resolution can mean in terms of potential detail. Beware that while you might be able to make out what looks like distinct lines at numbers higher than those we've mentioned here, the camera is just doing its best to continue interpreting the lines. If you zoom in and follow them from the wider portions, you'll see the lines converge and reappear several times, so the lines you see at 1,400 and higher are really only artifacts generated by the camera's imaging system.

Strong detail to 1,100 lines horizontal Strong detail to 1,100 lines vertical

See full set of test images with explanations
See thumbnails of all test and gallery images

Sharpness & Detail
Slightly soft images overall, with some noticeable blurring from noise suppression, though no strong over-sharpening from the camera.

Moderate definition of high-contrast elements. Subtle detail: Hair
Noise suppression tends to blur detail in areas of subtle contrast, as in the darker parts of Marti's hair here.

The Kodak V570's images are slightly soft overall. Even under high contrast lighting, the camera doesn't attempt any strong edge enhancement or over-sharpening. (Edge enhancement creates the illusion of sharpness by enhancing colors and tones right at the edge of a rapid transition in color or tone.)

Noise-suppression systems in digital cameras tend to flatten-out detail in areas of subtle contrast. The effects can often be seen in shots of human hair, where the individual strands are lost and an almost "watercolor" look appears. The crop at far right shows this, with darker areas of Marti's hair showing blurred details. Only highlighted individual strands are visible here.

ISO & Noise Performance
Moderate to high noise, even at the normal sensitivity settings. Very high noise that blurs detail at the higher settings.

ISO 64 ISO 100 ISO 200
ISO 400 ISO 800

The Kodak V570's lower ISO settings produced moderate to high noise, with pronounced blurring even at ISO 200. At ISO 400, blurring is much stronger, and the noise pixels brighter. ISO 800 is available only at the lowest resolution setting, and noise pixels are much brighter and more distracting here.

Extremes: Sunlit and low light tests
Moderately high resolution with good overall detail, though high contrast and limited shadow detail. Limited low-light performance, though capable of capturing bright images under average city street lighting and slightly darker conditions.

Normal +0.3EV +0.7EV

Because digital cameras are more like slide film than negative film (in that they tend to have a more limited tonal range), we test them in the harshest situations to see how they handle scenes with bright highlights and dark shadows, as well as what kind of sensitivity they have in low light. The shot above is designed to mimic the very harsh, contrasty effect of direct noonday sunlight, a very tough challenge for most digital cameras. (You can read details of this test here.)

The Kodak V570 had some difficulty with the deliberately harsh lighting in the test above, producing very high contrast with washed-out highlights and deep shadows, even at the default exposure setting. Noise suppression is strong in the shadows, contributing to the loss of detail. Even at the default exposure, the overall exposure is a bit bright. (In "real life" though, be sure to use fill flash in situations like the one shown above; it's better to shoot in the shade when possible.)

  1 fc
11 lux
1/2 fc
5.5 lux
1/4 fc
2.7 lux
1/8 fc
1.3 lux
1/16 fc
0.67 lux
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8 sec

Low light:
Our low light testing revealed some limitations in the lens and sensor's ability to gather and process light, as the Kodak EasyShare V570 captured bright images only to about 1/2 foot-candle, about half as bright as average city street lighting at night. Color balance was slightly warm from the Auto white balance setting, but still pretty good. The camera's autofocus system functioned quite well to just about the lowest light level we test at with the AF assist lamp, but the exposure was much too dark for use here. Do keep in mind though, that the very long shutter times associated with camera's night mode absolutely demand the use of a tripod or other camera support to get sharp photos. (A useful trick is to just prop the camera on a convenient surface, and use its self-timer to release the shutter. This avoids any jiggling from your finger pressing the shutter button, and can work quite well when you don't have a tripod handy.) Normally we show all the ISO settings, but most fully-automatic Kodaks won't let us set a long exposure at whatever ISO we like. Thus we have only the above samples.

NOTE: This low light test is conducted with a stationary subject, and the camera mounted on a sturdy tripod. Most digital cameras will fail miserably when faced with a moving subject in dim lighting. (For example, a child's ballet recital or a holiday pageant in a gymnasium.) For such applications, you may have better luck with a digital SLR camera, but even there, you'll likely need to set the focus manually. For information and reviews on digital SLRs, refer to our SLR review index page.


Coverage and Range
The V570's small flash has a limited range, though it produced good results at the default exposure setting.

39mm equivalent 117mm equivalent
Normal Flash, Default Exposure Normal Flash +0.3 EV

Flash coverage was rather uneven at wide angle, and still slightly uneven at telephoto. In the Indoor test, the flash on the V570 underexposed our subject slightly at its default setting, though even a small exposure adjustment of +0.3 EV produced too bright of an image. The background incandescent lighting results in a slight pink cast, but overall color is still pretty good.

8 ft 9 ft 10 ft 11 ft 12 ft 13 ft 14 ft
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1/125 sec
ISO 100
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1/125 sec
ISO 100
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1/125 sec
ISO 100
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ISO 100
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ISO 100
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ISO 100
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1/125 sec
ISO 100

Even at eight feet, our closest test range, flash power is a little dim. Intensity continues to decrease with each foot of distance, resulting in very low power at 14 feet.

Output Quality

Print Quality
Good print quality, great color, very usable 11x14 inch prints. ISO 400 images are very soft at 8x10, acceptable at 5x7, good at 4x6. ISO 800 images are unusable at any size.

Testing hundreds of digital cameras, we've found that you can only tell just so much about a camera's image quality by viewing its images on-screen. Ultimately, there's no substitute for printing a lot of images and examining them closely. For this reason, we now routinely print sample images from the cameras we test on our Canon i9900 studio printer, and on the Canon iP5000 here in the office. (See the Canon i9900 review for details on that model.)

With the Kodak EasyShare V570, we found that it had enough resolution to make very crisp 8x10 inch prints at low ISO, and acceptable up to ISO 200. At 11x14, its prints were a bit softer looking, but more than adequate for wall or table display. ISO 400 ones are marginal even at 5x7 inches, but look fine at 4x6. ISO 800 images really aren't even worth a 4x6, unfortunately. Color-wise, the Kodak V570's images looked great when printed on the i5200, with bright, vibrant color. Users who prefer more subdued, technically accurate color saturation levels may find the V570's images a little too bright, but most consumers will probably find the V570's bright, snappy images very appealing.