Canon has released the 550D as an upgrade to 500D. It has inherited some of the features of their high end 7D while offering a cheaper alternative to 7D.

Key features:

  • 18 Megapixel! Will this megapixel race ever end?
  • ISO 100-6400 (Expansion to 12800) , similar to 500D
  • 1920X1080 Full HD Movie Recording
  • SDHX compatible
  • External microphone support 3.5mm stereo jack
  • Weight 530g

Limitations:

  • Fixed LCD
  • No in camera RAW conversion

Canon 7D Advantage over 550D

  • Faster burst speed 8fps vs 3.5fps (550D)
  • Weather proof sealing
  • Top LCD

If faster burst speed or weather proofing is not your requirements, 550D would work out better for you.