A discussion of the design and features of the Pentax K-x.
Lori Grunin
I've been reviewing hardware and software, devising testing methodology and handed out buying advice for what seems like forever; I'm currently absorbed by computers and gaming hardware, but previously spent many years concentrating on cameras. I've also volunteered with a cat rescue for over 15 years doing adoptions, designing marketing materials, managing volunteers and, of course, photographing cats.
The K-x feels solid and well made, with a comfortable grip that accommodates the four AA batteries that power the camera.
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Body
Yes, it's well made, but the K-x's body is also the heaviest in its class.
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Exposure modes
In addition to the traditional PASM exposure modes, Pentax offers a Sensitivity-Priority option (Sv), which automatically adjusts shutter speed and aperture as you scroll through a user-determined range of ISO sensitivity values. It's a nice alternative to the trial-and-error approach to finding the lowest ISO sensitivity that will deliver a desired exposure.
You can program the green button to reset the camera, choose the image settings, show a depth-of-field preview in the viewfinder, apply an effects filter, and reset the autofocus point to center or override the file format settings. I really like Pentax's file override capabilities: you can define a behavior for any given scenario.
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Navigation
Though it doesn't have a lot of the explanations and handholding features that some other entry-level models provide, the K-x's operation is relatively straightfoward, incorporating many familiar conventions that point-and-shoot users are familiar with.
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Control panel
The Info button pulls up an interactive control panel that provides access to almost all the settings: Image controls (saturation, hue, high/low key, contrast and sharpness), cross processing, special effects, automatic HDR, shake reduction, metering, autofocus mode, metering, highlight correction, shadow correction, file format, resolution, compression, distortion correction, and lateral chromatic aberration adjustment.
Though it's a pretty packed display, it's easy to navigate and nothing's hidden in a place that you'll have trouble remembering.
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Status display
Though there's a lot on it, the status screen provides an easy-to-scan display of most of your current settings.