In their test—which uses the camera's raw output as the basis for measuring sensor performance, evaluating color, dynamic range and low-light shooting—Sony's $1100 A700 outscored Canon's 40D and 50D by a few points, with a 66.3, falling just behind Nikon's D300 and the Pentax K10D. Interestingly, the top scoring sensor of that size is in the Nikon D90, which has a whopping 72.6, 10 points ahead of the Canon 50D's 62.9.

Okay, Sony's Alpha cameras' solid sensor performance actually isn't that surprising, since Sony has a ton of experience making sensors—the Nikon D300 we lurrrrb and that does pretty well in DxO Labs' tests, for instance, packs a Sony sensor. DxO Labs' comparison tool, which has pretty much every major DSLR in its database, is actually pretty neat, if you believe their scores, anyway. [DxO Labs via CNET]

Canon EOS Digital Rebel XSi - I originally wrote: "Live View is limited, or you might even say crippled. You can't preview autofocus—I'm not even sure the autofocus works very well in this mode." When you activate Live View, you have to enter the custom settings and enable one of two kinds of autofocus, which you then manually trigger with the press of a button. The Live View isn't so much crippled as it is overly complicated, compared to the sexier iterations in the Sony and Olympus.

Sony Alpha a350 - I noted a sluggishness with photo reviewing: once you take a shot, there's an annoying pause. The question was raised whether or not this was due to Sony's D-Range Optimizer, which "delivers suitable tonality and exposures with rich shadow and highlight detail, even under high contrast situations." While the D-RO and D-RO+ modes can add even more time to the turnaround on the a350, taking pics without D-RO still means a turnaround time about twice as long as Canon's.

Nikon D60 - I complained about something I called the "auto-focus lamp" but which Nikon refers to as AF -assist. You can in fact turn it off, but it's not exactly easy. First, you have to go to the Setup menu to enable the "full" Custom Settings Menu, or the option doesn't appear. And then you have to go into the Custom Settings Menu, locate the AF-assist option and turn it off—provided you know that the bright annoying light is even called by that somewhat indirect name. My feeling is that this option should be off as a default, like on some competing DSLRs.

Olympus E-420 - I have said repeatedly that this camera has trouble with autofocus: when shooting with the kit lens, it resets almost every time you point it at an object, even if it's the same object you were focused on a second before. Olympus suggested I update the lens firmware to see if it improved anything. While there was a patch that I successfully installed, the lens' AF behavior is unchanged.

As you can see, when all new information is factored in, my initial ranking still stays the same. It seems you get what you pay for, though it bears repeating that the real dark horse is Sony's a300, a $700 (with lens) 10-megapixel version of the a350.

One final note: Whenever I bring up DSLRs, the debate about automatic shooting modes rages with some vehemence. I love the discussion, but I want to stress two things: Cameras intended for newbies need really good auto modes, and even the $900 kits I write about are targeted at the noob crowd. Don't believe me? Chuck Westfall, head of media and customer relations for Canon USA, told me this the other day: "The Rebel demographic is skewed towards beginners," adding, "We've found that any kind of automation we can give them is a good thing."

Thanks for the lively debate, and by all means keep it rockin'. As always, I am blown away by the depth of knowledge coming from Giz commenters on this popular but often confusing subject. [Entry-Level DSLR Battlemodo]

The Weigh In As you can see, there's a wide range. I'm not saying weight is everything, but being the heaviest (by a lot) doesn't help the Sony.
On Paper Before we get into each camera's capabilities, have a look at their specs. Cameras are arranged in order of price, from cheap to pricey. You can see how it's easy to fall in love with the lower-priced models. But in action, you statt to realize why the pricing is so slanted.
1600 ISO and Auto White Balance In these shots, you can judge two things. First, some cameras have noisier high-ISO results than others (cough*Olympus*cough), and second, that auto white balance isn't the easiest thing to master. (I'm talking about you, Nikon.) Fortunately, two cameras do both reasonably well:
Action Shots in "P" Automatic Mode Some of you have beef with me complaining that some DSLRs have lousy automatic settings, but the truth is, great DSLRs do damn well on auto, so it's a way to separate the good from the bad. Here you can see from a quick session with all four cameras that getting a clean shot of a moving cat in low light isn't always possible:
Note the Nikon's shot: The cat is squinting because of the auto-focus lamp that goes on before the shot—generally annoying when trying to capture kids and pets in their natural states.

Full Manual ShootingHere's what happens when I try to take the same or similar shots with the different cameras, using more or less the same manual settings. (The above shot was from the Sony Alpha a350.)

Daffodils: Low f-stop, medium shutter speed, handheld Dawn: Medium f-stop, fast shutter speed, handheld Creek: High f-stop, slow shutter speed, tripod
THE END RESULTCanon EOS Digital Rebel XSi - First Place
What I Liked It's an all around decent camera, much lighter in weight than the Sony but with most of the same performance. The cheap starter lens, which you may scoff at, gives it an added weight bonus, making it lighter than all but the Olympus.
What I Didn't Like Live View is limited, or you might even say crippled. You can't preview autofocus—I'm not even sure the autofocus works very well in this mode. In the manual, Canon concedes that this is really for still life shooting and other limited applications. Also, for being $150 to $170 more than the Nikon, it's more or less the same class of camera, especially for manual shooting.

Sony Alpha a350 - Second Place
What I Liked All around intuitive camera with impressive automatic modes, a Live View that can demonstrate a lot, and solid control for people who know more. It's got the teaching ability of the Olympus with the picture reliability of the Canon. Although the a350 with 14-megapixel sensor is not as good a buy as the Canon at the same price, I think the nearly identical $700 a300 kit might be the best value of all right now.
What I Didn't Like The thing is giant, especially with the 16-80mm lens I tested. (The a300 is the same size and weight, by the way.) In Live View, I noticed from time to time that white balance on preview was different than what came out in the shot, which was annoying. The worst attribute, though, is the exceptional processing delay after you take each shot.

Nikon D60 - Third Place
What I Liked There's a keep-it-simple design here that works: not many hidden frills, but many nice clear options. I think for the money, this is the best idea for knowledgable, confident shooters, though it's not the best bet for beginners. I like one rare random perk in particular, the stop-motion video maker.
What I Didn't Like Simple means no frills like Live View previewing that the other models have. Though it's very handy when done right, like on the Olympus, it can also be done badly. Judging from Canon's execution, I can see why Nikon didn't bother. I have two particular pet peeves with the Nikon: Low-light autofocus triggers a very bright AF lamp, which makes pets and children go all squinty, and the auto white balance makes things too yellow indoors, and can't be overridden when in automatic modes.

Olympus E-420 - Fourth Place
What I Liked Besides the remarkably low price, I think this camera has the capacity to teach you a lot about manual settings because of the Live View. Like the Sony, this shows you the effects of your WB, exposure, f-stop and shutter settings in a live preview as you make them. Oly has this down, and was the one that started it all.
What I Didn't Like The lightweight camera is missing a lot of strong tech: the ISO 1600 is noisy, autofocus doesn't respond nearly quick enough, and shooting in automatic modes turns up blurry and unfortunate shots.

There you have it, folks. I've tried to include enough of my methodology to let you judge this stuff for yourselves. Surely there's a lot to talk about, including the obligatory "body vs. glass" debate. I agree that lenses make a difference, but with new DSLR advancements, the bodies are starting to have a greater impact on how well people take pictures. You may know it all, but any one of these cameras can help the ignorant noob more than anything that came before. OK, that's my take... you have the floor.

Update: Check out our DSLR Battlemodo follow-up, which answers some of the questions raised in the comments below.

The laptops will all have "Feather-Touch" multimedia touch-sensitive keys and a webcam with facial-recognition security login, presumably more for fun than true security. They will all also have Sleep-and-Charge USB ports, which will charge stuff even when the laptop is asleep or powered down, provided the laptop is plugged into a wall socket.

At the same time, Toshiba introduced two totally new laptops, the A200, with a starting price of $600 including 15.4" widescreen, DVD SuperMulti drive 160GB drive, 1GB of RAM and an AMD Athlon 64 X2 Dual-Core processor. The company also introduced the 17" L350 with built-in webcam, ATI Radeon X1250 graphics and DVD SuperMulti drive for $750. [Toshiba releases: Redesigned laptops; Cheap laptops]

Thanks to the dedicated second image sensor, it:

"focuses quickly as you aim the lens, without ever blacking out the screen...the screen doesn't go on-off-on, there's no loud clacking, and there's no baffling exhibition of mirror calisthenics inside the camera."

SONY INTRODUCES TWO MAINSTREAM DSLR CAMERAS WITH
UNIQUE "QUICK AF LIVE" VIEW SYSTEM

SAN DIEGO, Jan. 30, 2008 - Sony is bringing live-view shooting to its digital SLR camera line with today's introduction of a 14.2-megapixel  (alpha) DSLR-A350 camera and 10.2-megapixel α (alpha) DSLR-A300 model. Both cameras feature new technologies that make picture taking faster, easier, and more familiar for first-time DSLR users.

Quick AF Live View System

They both offer Sony's new "Quick AF Live View" technology so you can frame photos on the camera's LCD without sacrificing auto-focusing speed common to other live-view systems.

Sony's innovative Pentamirror Tilt mechanism directs light to a dedicated live view image sensor, enabling fast and responsive TTL phase-detection auto-focusing, even during live view. Eliminating the focus delay of other systems, the new models are equally responsive whether using live view or optical viewfinder.

With its two sensor design, Quick AF Live View can even continuously focus-track the subject and provide live view during burst shooting, helping you capture that special moment.

Taking further advantage of Quick AF Live View is the models' variable angle 2.7-inch Clear Photo LCD ™ screen. This makes it easy to frame scenes from high or low positions difficult to reach when using an eye-level viewfinder.
With Live View and an adjustable LCD, the cameras do not need to be in front of the user's face, allowing parents, for example, to maintain eye-contact when photographing their children.

"Mainstream users stepping up to DSLRs are looking for a similar experience to their point and shoot cameras, but without compromise in speed or performance" said Phil Lubell, director of marketing for digital cameras at Sony Electronics. "Quick AF Live View gives these new models a familiar shooting style without compromising speed - ideal for the growing market of first-time SLR users."
Exceptional Image Quality

The new models produce images with fine detail, rich tonality and vibrant color due to their APS-C CCD image sensors and BIONZ® processing engine. To aid shooting in low light, Super SteadyShot® image stabilization enables shutter speeds 2.5 to 3.5 steps slower than otherwise possible, with every compatible Minolta Maxxum® and Sony α (alpha) lens (sold separately) attached to the camera.

High sensitivity operation at ISO 1600 and 3200 and very low noise are made possible by the user-selectable high-ISO noise reduction features. Sony's D-Range Optimizer delivers suitable tonality and exposures with rich shadow and highlight detail, even under high contrast situations.
Powerful Performance, Easy to Use

The DSLR-A300 model can shoot about three continuous frames per second and the DSLR-A350 model can shoot up to two-and-a-half continuous frames per second, when using the optical viewfinder. Both are powered by the Bionz processing engine and supplied InfoLITHIUMTM battery for fast start-up times, quick response and long battery life - up to 730 shots per full charge when using the optical viewfinder and up to 410 shots per full charge in live-view mode.

Both models feature lighter, slimmer bodies for easy handling; an improved user interface; an automatic pop-up flash; a comfortable camera grip with an easily accessible mode dial; an anti-dust system to keep the CCD image sensor clean for spot-free pictures; and JPEG and RAW file format support. Both have a slot for CompactFlash™ Type I/II media cards.

An adaptor for Memory Stick Duo™ media cards is also available for the cameras and sold separately.
The new DSLR-A300 and DSLR-A350 cameras are compatible with a range of accessories, including the ergonomic Sony VG-B30AM vertical grip. Also available as an option is the new Sony HVL-F42AM flash unit. It offers advanced features such as automatic white balance adjustment with color temperature information, adjustable bounce angles, ADI metering and wireless remote operation to suit the needs of most photographers.
Price and Availability

The DSLR-A300 kit with a DT 18-70mm f3.5-5.6 standard zoom lens will ship in April for about $800. The DSLR-A350 camera body will be available in March for about $800, and the DSLR-A350 kit with a DT 18-70mm f3.5-5.6 3.9x zoom lens will be available for about $900 at the same time. Both models will be available at sonystyle.com, Sony Style® retail stores (www.sonystyle.com/retail), military base exchanges, and authorized dealers nationwide. Pre-orders begin online today at www.sonystyle.com/dslr.

Tingling our spider sense a bit, however, is the fact that the pics look almost exactly alike, except for the A300 bearing "10.2" on its underside, while the A350 is marked "14.2," which also happen to be the only "known" specs. 10.2 megapixels for the A300, 14.2 for the A350. Stack 'em up against PMA's other new (or rumored) DSLRs right here. [Dyxum via Photography Bay]