Canon has launched the 500D/T1i, this fits in between the entry level 1000D and the professional series 50D. This also have video capabilities which all the SLRs are now adding.

Key Features

  • 15 Mega Pixel. Same sensor as the 50D, which is a good thing but does megapixel  matter any more? Perhaps for some.
  • High Definition Video (1080p) recording.This is at 20fps, while you can get 30fps if you shoot in 720p.
  • Extendible ISO up to 12800
  • Live view with Face Detection
  • HDMI output
  • 9 Point autofocus
  • SD/SDHC Card
  • 524g weight

Main advantage over 450D

  • Video capabilities
  • 15MP vs. 12
  • Higher ISO vs 1600
  • HDMI connectivity

If these are not important to you, then you could get a 450D at a bargain.

Advantage over Olympus E620

  • Video as the 620 doesn’t have video.

Advantage of Olympus E620 over Canon 500D

  • Image stabilisation in the Body