As compact cameras continue to evolve into commodity items, camera makers have shifted the way they approach their entry-level dSLRs. In Olympus' case, the Evolt E-410 and E-510 include LiveView LCD preview mode to mimic the way you frame a shot with a compact camera and scene presets in case you're not comfortable enough to set exposure using the program, aperture- and shutter-priority, and manual shooting modes that are the norm among SLR shooters. Of course, those modes are still available in the E-510, and can give you the same level of exposure control you find in other SLRs.
Olympus thinks of the E-510 as a small step above the E-410 and thinks that it should appeal to SLR newbies (or possibly former film SLR owners) that want more of a traditional SLR design than its smaller sibling. While the 410 has an extremely compact body design with almost no grip so it can fit into a pocket if you take the lens off, the 510 has a more prominent grip, making for a slightly larger body. Not only that, the 510 also includes mechanical, sensor-shift image stabilization, which the 410 lacks.
Like most newer entry-level SLRs, the E-510 doesn't include a separate status LCD. Instead, you can access info, such as shutter speed, aperture, and ISO, on the camera's main LCD screen. While I normally prefer a status LCD to this method, I do like the way Olympus built its status screen, since you can quickly navigate through the screen to change any of the settings included in that view. Of course, there are also hard buttons for commonly changed settings, such as ISO, white balance, and AF mode, in case you want to bypass the status screen, which you access by pressing the OK button in the middle of the five-way touchpad. The layout of buttons on the 510 is very nice, making it a comfortable camera to use, though like most entry-level SLRs, its body is a tad short, and my pinky finger dangles from the bottom of the grip when I hold it.
As Live View modes in SLRs go, the 510's version is pretty nice, but it's still clunkier than shooting with a real compact camera or using the 510's optical viewfinder. Since the 510 has to get its mirror out of the way before you can use Live View, then needs to lower it to autofocus and raise it again before you can shoot, this mode is slow and noisy. Also, if you do want the camera to autofocus while in Live View mode, you have to hold the AEL/AFL button to activate it, which also slows down the shooting experience. However, if you want to focus manually, you can zoom in on your subject to help you focus. You can also select the area that you want to zoom in on or use for autofocus; a small green box appears if you cycle through display modes (with the INFO button) and you can move it around the frame with the direction buttons in the 5-way touchpad.
Since the E-510's 10-megapixel LiveMOS sensor adheres to the Four Thirds format, the camera has a 2x focal length multiplier. That means that you have to multiply the focal lengths of the two available kit lenses by two to come up with the effective field of view that you'll get with the lenses. For example, the 14-42mm f/3.5-5.6 lens that comes with the single and double lens kits becomes more akin to a 28-84mm lens. Meanwhile the 40-150mm f/4-5.6 lens that comes with the double lens kit ends up more like an 80-300mm lens. That's a nice range of focal lengths, especially in an entry-level SLR kit, but if you want to go wide with a Four Thirds camera, you should be prepared to shell out some serious cash. Olympus does offer a rectilinear (aka nonfisheye) 7-14mm f/4, which I was able to use to shoot Arthur Ashe stadium when Olympus invited me to the U.S. Open this year (see my slide show for the shot), but it'll cost you almost as much as three E-510 bodies to buy that lens. The company's 11-22mm f/2.8-3.5 costs less than half the 7-14mm's price, but if you want to get wider than a 20mm-equivalent without resorting to a fisheye lens, you'll likely have to pawn your arm and leg.