The compact size of the Olympus E420 is perfect and ensures you can always carry the camera with you. One of the complaints about the E-410 was, among other things, the lack of a clear handgrip. Olympus have listened well to their consumers, and equipped the E-420 with a new handgrip. Unfortunately I don't have the previous model with me, however, while photographing in practice I never really missed the handgrip whereas with its predecessor I did. The camera fits comfortably and stable in my hand, and I consider it a luxury to be able to shoot single-handedly. It could prove to be a real relief to switch from a heavy professional camera to a camera like the Olympus E-420 and experience the ease of its size and weight. After a day of shooting, my fingers don't bother me in the way they do after a day’s shooting with my own (heavy) D-SLR.
The side of the camera that contains the handgrip also contains a dual card slot. The Olympus E420 supports CompactFlash and also the smaller xD-Picture memory cards. If you switch from Fujifilm or Olympus compact to the E420, you can keep on using your xD cards. I would vote for Olympus to bid farewell to the xD cards and switch over to the SD(HC) format. It would undoubtedly hurt, yet in my opinion the xD card's market share is too limited to say they've succeeded.
OLYMPUS EVOLT E420 10MP DIGITALl SLR CAMERA - BLACK W/ 14-42mm LENSE E-420$199.99 View Item
"The appearance of the Olympus E-420 SLR camera is not that much striking, since we are already acquainted with the E-410 as an ultra-compact DSLR and the Olympus E420 is comparable. However, Olympus have carried out some rigorous internal changes that lift in particular the image quality to a high level."
Like its predecessor and the other FourThirds DSLR cameras of Olympus, the Olympus E420 has an ingenious system that attacks annoying dust. The so-called SSWF (Supersonic Wave Filter) consists of a special filter that vibrates and is placed before the image sensor so that dust particles don't get a chance to cling to the sensor. Upon activating the camera, the SSWF is activated. The minimal time lag that comes with it is something you will have to take for granted in order to be able to make dust-free pictures.