Compared to...

Eight versus Six megapixel

When Canon announced the EOS 20D they raised the megapixel bar for affordable digital SLRs. With all other digital SLRs at or around the same price point having six megapixels Canon will certainly want to use the numerical advantage to sell cameras. However the truth is that going from six to eight megapixel isn't a particular significant jump and may only be noticeable on very large prints.

What the EOS 20D gains over the EOS 10D (output image size only):

  • 1.89 million more output pixels
  • 432 more pixel columns (horizontal)
  • 288 more pixel rows (vertical)
  • Approx. 26 dpi more when printed at A3

Clearly this isn't the end of the story, the EOS 20D has many improvements over the camera it replaces which address complaints EOS 10D users had as well as introducing new features.

Outdoor scene comparison

Canon EOS 20D vs. Canon EOS 10D @ ISO 100

The following shot is of Tower Bridge, London. All shots were taken from the same tripod.
Camera settings:

  • Canon EOS 20D: Canon EF 50 mm F1.4, Aperture Priority (F9),
    ISO 100, JPEG Large/Fine, Auto WB, Parameter 2 (neutral), Self-Timer
  • Canon EOS 10D: Canon EF 50 mm F1.4, Aperture Priority (F9),
    ISO 100, JPEG Large/Fine, Auto WB, Standard Params (neutral), Self-Timer
Canon EOS 20D
Canon EOS 10D
ISO 100, 1/320 sec, F9
ISO 100, 1/320 sec, F9
3,618 KB JPEG (3504 x 2336)
2,752 KB JPEG (3072 x 2048)

A scan down these selected 100% crops shows that the EOS 20D has a very similar 'look' to its images as the EOS 10D (not a bad thing), the EOS 20D's tonal response is the same although it may have a little more dynamic range than the 10D, color is similar although I did note a slight difference in the color of the foliage in the last crop. The 20D's resolution advantage can be seen and certainly allows the camera to 'reveal' more detail in certain areas of the image although as I hinted above it's not a major leap forward.