Pentax K10D Reviews

Pentax K10D vs Nikon D300 vs Nikon D90: High ISO Image Noise Performance

by David Chin on July 25, 2009

Pentax K10D vs Nikon D300 vs Nikon D90: High ISO Image Noise Performance – Jeff Kott:

I have a Pentax K10D and six limited lenses. I also have a D300 and recently bought a D90 to get similar image quality as the D300 in a more compact package.

I find in going back and forth between the K10D and the D300/D90, that I really appreciate the extra DR and lower noise of the Nikons especially at ISO 640 and 800 which I use a lot.

I make a lot of 16"x 24" prints and find that I can shoot with impunity at ISO 640 or 800 with the Nikons and get acceptable images with a little bit of noise reduction at ISO 1600.

When I print large with the K10D, I need to use noise reduction software even at ISO 400.

K-7 user opinion and photos by Dale108

by David Chin on July 6, 2009

K-7 user opinion and photos by Dale108 – Highlights:

  1. The Pentax K-7 feels solid.
  2. Fast start-up times and responsive.
  3. AF is much faster than on the K20D. Focusing with the DA* 50-135mm lens was possible even in an almost dark room.
  4. Focus was fast and sure for wildlife photography using the Tamron 70-200mm f/2.8 and a Tamron 1.4x TC (teleconverter). See the woodpecker photo at full size.
  5. Illumination for the the two butterfly photos, at ISO 1600 (see full size) and ISO 3200 (see full size, or a 100% crop), was provided by a Sigma Flash Macro Ring EM-140 DG.
  6. RAW conversion was done in ACR (Adobe Camera RAW – the EXIF shows that Adobe Photoshop CS3 was used).