The SP 35mm and SP 45mm f/1.8 Di VC USD are two new lenses in Tamron's newly announced Superior Performance series. Read photographer Bob Atkins' in-depth review of these lenses that are designed to...
The world of digital cameras splits into two hemispheres. In the Southern
Hemisphere there are point and shoots. These take forever to power up, a lifetime
to focus, and a few decades between photographs. You can't see much through the
viewfinder. You can't evaluate focus through the viewfinder because the
viewfinder isn't through-the-lens. In the Northern Hemisphere there are
single-lens reflexes (SLRs). The best of these work like film SLRs. Flip the on
switch, evaluate your composition, focus, and settings through the big
viewfinder, and snap. Want a different perspective? Unmount Lens A and mount Lens
Olympus's E-20 can best be described as straddling the Equator between these
worlds. In bulk, price, and performance the camera averages the capabilities of
digital point and shoots and full professional digital SLR bodies. For a bit less
than $2000 you get a self-contained 5-megapixel single lens reflex body
permanently attached to a 9-36mm/2.0-2.4 zoom lens (equivalent perspective to a
35-140mm lens on a 35mm camera). The camera produces 8-bit JPEGs or 10-bit
RAW-format images 2560x1920 pixels in size.
If you're familiar with the Olympus E-10, the E-20 is basically the same
camera with higher resolution, shorter processing delays, and some other minor
improvements. In fact, so similar is the camera that we refer the reader to
the photo.net review of the E-10 for many details of
We still love the idea of the Olympus E-series: a real viewfinder, an
ergonomic body, a lens whose coverage matches the size of the imaging sensor. But
the reality of the E-20 is less than impressive, particularly considering how
little improved it is over the E-10.
The E-20 has the body of a professional single-lens reflex camera but the CPU
soul of a cheap point-and-shoot. It is slow (6 seconds) to turn on. It is slow in
between shots. It is slow when writing images to the flash card.
It isn't possible to hold a picture on the rear LCD screen by holding down the
shutter release, as with Canon products. You have to switch the camera into the
dreaded playback mode, in which it becomes useless as a camera and cannot take
any pictures, or press a button on the rear of the camera twice. The E-10 takes
several seconds to bring up the image on the LCD.
The E-20 should be a good companion in low light, despite its maximum
sensitivity of ISO 320. The lens is a fast 2.0. Most of the controls are
individual buttons and knobs that can be operated by feel. The built-in flash is
powerful and pops up a reasonable distance from the lens for red-eye avoidance.
The camera offers active infrared autofocus (it sends out a beam), film SLR-style
contrast maximizing passive autofocus, and manual focus. For the E-20, Olympus
has also added a long-exposure averaging system to reduce noise in the
A camera at this price really ought to be bundled with a lightweight version
of Adobe PhotoShop. But it isn't. Olympus gives you a plug-in for PhotoShop that
will let you process and manipulate the 10-bit RAW images from the camera.
All digital cameras ought to be bundled with high quality image library
management tools. But the Olympus E-20 is not.
Where camera companies fail, Microsoft comes through. If you plug the E-20's
USB cable into a Windows XP machine, XP recognizes the device as a camera and
asks "Would you like to copy these images to the hard drive". Once you've copied
the images (8-bit JPEGs only) over, the native Microsoft operating system file
explorer can show you thumbnails, rotate images clockwise or counterclockwise
(the E-20 is too dumb to know whether it was being held horizontally or
vertically and hence does not encode vertically captured JPEGs corrected).
On its face, the E-20 is a poor value. For half the price and less than half
the size you can get a point and shoot from Canon or Nikon that affords similar
image quality and processing delays. For a bit more money you can get a
6-megapixel digital single lens reflex with interchangeable lenses, e.g., Fuji
S2, Nikon D100, Canon D60, or Sigma SD9.
My personal theory is that the Olympus E-20 will appeal to middle-aged people
who are accustomed to the high-quality viewfinder and logical controls of a
manual film single-lens reflex. A person whose last camera was a Nikon FE or
Minolta SRT-102 is never going to understand how anyone can create a good image
with a point-and-shoot digital camera. At the same time such a person might not
want to adopt the bulk and complexity of a full-size digital SLR. Nor might that
person want to lug around unnecessarily large lenses that cover a larger image
area than the digital sensor.