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Konica Minolta DiMAGE X31
The Imaging Resource
Quick Review Konica Minolta DiMAGE X31 Digital Camera
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Camera
QuickLook |
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By |
Dave Etchells
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Review
Date |
9/7/2004 |
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User Level |
Novice - Amateur |
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Product Uses |
Family / Travel |
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Digicam Design |
Point and Shoot |
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Picture Quality |
Moderate,
3.2-megapixel CCD |
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Print Sizes |
4x6 to
8x10 inches |
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Availability |
Now |
| Suggested Retail
Price
(At introduction) |
$199 |
Introduction
The Minolta DiMAGE X31 is one of the latest in Minolta's
line of subcompact DiMAGE X models, using a unique "folded" lens
design to achieve a remarkably compact form factor and very fast startup times.
Minolta really turned heads when they introduced the original DiMAGE X, now
nearly three years ago. A two-megapixel camera in the form of a square block
of metal, just barely over three-quarters of an inch thick, the DiMAGE X was
an immediate hit, as popular as a fashion statement as it was for its status
as a go-anywhere, shoot-anytime digital camera. The X20 was the first affordable
version of this popular camera, reducing the price by enclosing the same mechanism
in a plastic body. While the metal versions of the X-series have gone as high
as 5 megapixel, the X31 is the first resolution bump at the low end, now to
3.2 megapixels.
Camera Overview
Continuing with the vertical, "folded" lens design that made Minolta's
DiMAGE Xt and Xg so popular, the DiMAGE X31 features a similarly small and
thin body, though it is a little bit thicker than the metal models. It has
a redesigned menu system that's a bit more user-friendly for novices, brought
over from the X20 and X21. (Although I personally prefer the menu layout used
in the other members of the "X" line.). Measuring 3.4 x 2.6 x 0.9
inches (86 x 67 x 24 millimeters) and weighing
just 6.1 ounces (174 grams) with the battery and SD memory
card, the DiMAGE X31 is one of the smaller digicams on the market. With the
extremely compact design and lack of significant case protrusions, there's
no excuse for leaving it behind, as it can tag along in even the smallest
shirt pocket, or be quickly tucked into an evening bag or pants pocket. The
unique "folded" optical design means that there's no wait for a
lens to telescope out of the body when the camera is powered up, resulting
in very fast startup and shutdown times. The sleek design includes a built-in
lens cover that conveniently slides out of the way whenever the camera is
powered on, eliminating any concern over misplacing a lens cap. The 3x zoom
lens and fully automatic exposure control makes the camera easy to use yet
versatile enough for most common applications. The 3.2 megapixel CCD produces
enough resolution images for making sharp prints as large as 8x10 inches,
or slightly softer ones as large as 11x14, as well as lower resolution images
better suited for email and other electronic use.
The DiMAGE X31 has a 3x, 4.7-14.1mm lens, the equivalent of a 36-108mm lens on a 35mm camera. The autofocus covers a range from 3.9 inches (10 centimeters) to infinity. There's no separate macro mode, but the 3.9-inch close-focusing combined with a telephoto lens setting produces really excellent macro performance. Depending on the lens zoom position, the maximum aperture ranges from f/2.8 to f/3.7. In addition to the optical zoom, the DiMAGE X31 offers a 1.1 to 4.0x digital zoom, in varying increments from 0.1 to 0.3x. (Although I always remind readers that digital zoom always decreases the overall image quality because it simply enlarges the central pixels of the CCD's image.) The 1.5-inch, color TFT LCD monitor has an anti-reflection coating, and features an information display. In Playback mode, images can be enlarged up to 6x, as an aid to checking critical focus and framing.
Exposure is automatically controlled at all times, with only a few exposure options available. An On/Off button on top of the camera powers the camera on, and a Mode switch lets you select between Record and Movie modes, with a Playback button for quick image review. Thanks to the all-internal lens design, there's no need to wait for the lens to extend before you can shoot, so startup times are very short (Konica Minolta claims a 1.0 second startup time, although I measured it at more like 1.6 seconds, still pretty fast.) Most exposure options are controlled through the LCD's on-screen menu system, which offers very straightforward navigation and a new interface to make it even more user-friendly than previous models. (Although I have to say that I personally preferred the standard tabbed-menu layout of the earlier user interface design.) That said, you can program the rear-panel left and right arrow keys to control either flash mode, exposure compensation, or white balance, etc, without needing to enter the menu system to do so. Shutter speeds range from 1/500 to four seconds, although the chosen value is not reported to the user. Exposure Compensation is adjustable from -2 to +2 exposure equivalents (EV) in one-third-step increments. Sensitivity is automatically set between ISO 50 and 200, depending on the current light level; it cannot be adjusted manually. White Balance is adjustable through the settings menu, with options for Auto, Daylight, Cloudy, Incandescent, and Fluorescent light sources. The DiMAGE X20's built-in flash operates in Auto, Red-Eye Reduction, Forced, Suppressed, or Night Portrait modes.
In addition to the basic exposure options, the DiMAGE X31 also offers a few extra shooting modes, accessed through the settings menu. A Portrait mode selects larger lens apertures to reduce the camera's depth of field so the subject appears in focus in front of a slightly blurred background, placing more emphasis on the subject. In Movie exposure mode, the camera captures either 320 x 240-pixel or 160 x 120-pixel resolution moving images without sound, with duration limited only by the size of the memory card. A Self-Timer mode provides a 10-second delay between the time the Shutter button is pressed and when the camera actually takes the picture, allowing you to get into your own shots. For shooting fast action subjects, the DiMAGE X31's Continuous Advance mode captures a rapid series of images when you hold down the Shutter button, much like a motor drive on a traditional 35mm camera. Provided that there's enough space remaining on the memory card, the camera can capture up to three large/fine images, or up to 30 small/economy mode ones before having to pause to write the image data to the memory card. Details like image size and shutter speed can affect the shooting interval, but it averages approximately 0.8 frames per second. A Multi Frame mode captures a series of nine thumbnail images, which are then arrayed in a single image in a 3x3 format. Unlike the X20, the X31 has no microphone, and so cannot record voice memos.
The DiMAGE X31 stores its images on an SD memory card, and an 16MB card accompanies the camera. (The camera also works with MMC cards, which used to be less expensive, but these days, SD cards are generally more available and cheaper.) The X31 has a Favorites option for saving up to 10 favorite images in the camera's internal memory, and an Image Pasting tool which lets you insert a portion of a live frame over a captured image. Connection to a host computer for image download is via USB. The DiMAGE X31 is a "storage-class" device, which means that it doesn't require any separate driver software for Windows 2000 and XP, or for Mac OS 8.6 and later; just plug it in and it appears on the computer as a hard drive. The camera utilizes two AA-type batteries for power, either alkaline or NiMH. A set of alkaline batteries comes with the camera, but I highly recommend picking up a set or rechargeable NiMH batteries and keeping a spare set freshly charged at all times. See my Battery
Shootout page to see which batteries currently on the market are best, read
my review of the
Maha C-204F charger, to see why it's my longtime favorite. The optional
AC adapter is also useful for preserving battery power when reviewing and downloading
images, or when viewing images and movies on a television, via the supplied
A/V cable.
Basic Features
- 3.2-megapixel CCD.
- 1.5-inch color TFT LCD monitor with anti-reflection coating.
- Glass, 3x, 4.7-14.1mm lens, equivalent to a 36-108mm lens on a 35mm camera.
- As much as 4.0x digital zoom.
- Automatic exposure control.
- Shutter speeds from 1/500 to four seconds.
- Maximum aperture f/2.8 to f/3.7, depending on lens zoom position.
- Built-in flash.
- SD/MMC memory card storage, 16MB card included.
- Images saved as JPEG files.
- Power supplied by two AA-type batteries or optional AC adapter.
- DiMAGE software and USB drivers included for both Windows and Mac platforms.
Special Features
- Movie mode without sound.
- Continuous Advance and Multi Frame shooting modes.
- Portrait mode with self-framing mirror.
- 10-second Self-Timer for delayed shutter release.
- White balance (color) adjustment with five modes.
- Five color adjustment settings.
- Special framing and side-by-side picture modes.
- DPOF (Digital Print Order Format) compatibility.
- PictBridge compatibility.
- Integrated USB and Video cable for connection to a television set.
Recommendation
The DiMAGE X31 is relatively small and compact. Its fully automatic exposure
control will suit novices and others interested in point-and-shoot operation,
although the user does have a few options for brightening or darkening the image,
or adjusting the color balance. The 3.2-megapixel CCD delivers images with enough
resolution to make sharp 8x10 prints, and lower resolution options for email
purposes. The DiMAGE X31's tiny size makes it a natural for "anywhere/anytime"
photography. With its point-and-shoot appeal and ease of use, the DiMAGE X31
could be a good choice for novice users who simply want to take good pictures
without getting too involved in the technicalities. The X31 is also a relative
bargain, with "street" prices as low as $150 as I write this in early
September, 2004. The low price does bring with it some limitations though, notably
that its autofocus system needs a fair bit of light to operate reliably. (It's
fine in typical indoor shooting situations, but has trouble outdoors after dark.)
Likewise, its images tend to get noisy in dim lighting and when the flash is
in use. If you don't care about after-dark photography though, the X31 offers
good image quality and good capabilities for daytime shooting in a compact package
at a very attractive price.
Design
Like others in the DiMAGE X line, the DiMAGE X31 has a thin, small case, perhaps
not quite as thin as it seemed when we first reviewed the X20, because other
cameras have become smaller and thinner since then. Its sleek, rectangular body
shape and lack of protrusions make the DiMAGE X31 one of the most portable cameras
on the market. Measuring just 3.4 x 2.6 x 0.9 inches (86 x 67 x 24 millimeters),
the DiMAGE X20 fits just about anywhere, including the smallest of shirt pockets.
Matching its diminutive size, the DiMAGE X20 is also very light weight at just
6.1 ounces (174 grams) with the batteries and SD memory
card installed. The secret to the DiMAGE X31's compact design is its
internally-mounted lens, which stretches vertically up the side of the camera
rather than protruding from the camera's front. An internal prism reflects light
from the subject down into the lens itself, almost like a periscope. The internal
lens mounting also means that there's no wait for the lens barrel to extend
when you power up the camera, making startup times very quick.

The front of the camera holds the lens window, flash, self-portrait mirror, and self-timer lamp. A shutter-like, retractable lens cover protects the lens window whenever the camera is powered off, sliding quickly out of the way when the camera is turned on. A circular, slightly raised finger grip provides what could be a more substantial grip than on previous models were it not so slippery.
 
On the right side of the camera (as viewed from the rear) is the exposed SD memory card slot, lining up beside the DC In power and AV/Digital jack. An indicator light just below the SD card slot lights whenever the camera accesses the card, letting you know not to remove the card. Below these is the battery compartment, protected by a sliding door.
The opposite side of the camera is featureless, with no connectors or controls
on it at all. This view of the camera shows the decal that illustrates the clever
lens design Minolta is so justifiably proud of, as well as a small indention
marked with the maximum optical plus digital zoom. Be reassured though, that
the label can be easily removed after purchase, to result in a very sleek, elegant
case design.

The DiMAGE X31's top panel is sleek and smooth, with only a minor protrusion from the Shutter and Power buttons. A sliding switch is just behind both buttons, and places the camera into Record or Movie modes.

The remaining camera controls are on the back panel, along with the 1.5-inch color LCD monitor. At the top right corner is the neck strap attachment eyelet. The Five-way toggle is just below left, functioning just like a joystick. You press in on the joystick to accept selections. (The left and right motions of the toggle can be programmed to control one of a handful of exposure options as well.) To the left of the Five-way is the Menu button, which calls up and dismisses the LCD menu display. Just below it is the Playback button, which places the camera in Playback mode. To the menu button's left is the speaker for status beeps and sounds.

The bottom panel of the DiMAGE X31 reveals only the plastic, threaded tripod mount.
Camera Operation
The DiMAGE X31's user interface is very straightforward, as the camera employs
automatic exposure at all times. A simplified menu screen debuted with the X20,
and continues with the X31, with a 3x3 array of menu options displayed like
virtual buttons. The center "button" accesses the main mode menu,
which is laid out more like a traditional list menu screen. The X31 has very
few external controls, meaning you must call up the LCD menu to adjust most
camera settings. This is somewhat cumbersome, but you can customize the right
and left directions on the Five-way toggle to control either exposure compensation,
flash, drive mode, or white balance, reducing your dependence on the menu system.
In both capture and playback modes, the camera's main menu is divided into three
pages, delineated by subject tabs at the top of the screen. The Mode switch
lets you quickly switch between Movie and Record modes, while an external button
accesses Playback mode. Considering the camera's automatic exposure control
and limited user options, most users should be able to become familiar with
the camera's operation in half an hour or less. (Experienced users may not even
need to crack the manual.)
Record-Mode Display
In
Record mode, the LCD monitor displays the subject with a minor amount of overlaid
information, indicating flash, white balance, drive mode, the current size/quality
setting, and number of images that can be stored on the remaining memory card
space at the current size/quality. Pressing and holding the center OK button
(up and down arrow key) cancels and recalls the information display. When you
half-press the Shutter button, a small dot appears in the lower right-hand corner
of the LCD indicating whether the camera is focused (white dot) or not (red
dot), and a "shaking hand" symbol appears above the focus dot if the
shutter speed is slow enough that you'll need to be careful not to jiggle the
camera during the exposure.
Playback-Mode Display
In
Playback mode, the default image display shows the most recently captured image,
with an information overlay showing the resolution and quality setting used,
the date and time of capture, the file number, and the sequence number of the
image among those currently stored in the memory card. With an image displayed
full-screen, pressing the zoom control in the "T" direction zooms
in on the image up to a maximum magnification of 6x. At any magnification level,
pressing the "OK" button (pressing the center of the Five-way joystick)
switches you to scrolling operation, in which the left/right buttons and the
T/W control let you scroll around the magnified image. Pressing the center of
the T/W lever again returns you to zoom operation. Zooming out all the way from
the enlarged view and then pressing the "W" side of the zoom control
once more calls up a nine-image index display. The screen shot above right shows
all the available display options in playback mode.
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