Pentax K-5 II vs Sony A900

On this page, we are contrasting the Pentax K-5 II and Sony A900, both Advanced DSLR digital cameras by companies Pentax and Sony. There exists a significant gap between the sensor resolutions of the K-5 II (16MP) and A900 (25MP) and the K-5 II (APS-C) and A900 (Full frame) provide totally different sensor sizes.

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The K-5 II was manufactured 4 years later than the A900 and that is quite a sizable gap as far as technology is concerned. Both cameras have the same body design (Mid-size SLR).

Before going into a thorough comparison, here is a simple view of how the K-5 II scores versus the A900 in relation to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Pentax K-5 II and Sony Alpha DSLR-A900. The entire galleries are available at Pentax K-5 II Gallery and Sony A900 Gallery.

In case you're looking to carry your camera, you'll need to consider its weight and size. The Pentax K-5 II provides external measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 760 grams (1.68 lbs) while the Sony A900 has specifications of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") accompanied by a weight of 895 grams (1.97 lbs).

Check out the Pentax K-5 II and Sony A900 in the new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing during that time. The following is a front view scale comparison of the K-5 II vs the A900.

Looking at dimensions and weight, the portability rating of the K-5 II and A900 is 60 and 54 respectively.

Typically, it is tough to visualise the contrast between sensor sizing just by reading technical specs. The graphic here should provide you a clearer sense of the sensor sizing in the K-5 II and A900.

As you have seen, the two cameras have different megapixels and different sensor sizing. The K-5 II featuring a tinier sensor will make achieving shallow depth of field trickier and the Sony A900 will offer you greater detail due to its extra 9MP. Greater resolution will also help you crop pics a bit more aggressively. The younger K-5 II will have an advantage when it comes to sensor technology.