Pentax ist DS2 vs Sony A900

Here, we are evaluating the Pentax ist DS2 and Sony A900, both Advanced DSLR cameras by rivals Pentax and Sony. There exists a sizable gap among the image resolutions of the ist DS2 (6MP) and A900 (25MP) and the ist DS2 (APS-C) and A900 (Full frame) provide different sensor dimensions.

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The ist DS2 was unveiled 4 years prior to the A900 and that is a fairly significant difference as far as camera technology is concerned. The two cameras feature the same body design (Mid-size SLR).

Before we go into a in depth comparison, here is a brief summary of how the ist DS2 matches up vs the A900 in the way of portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Pentax ist DS2 & Sony Alpha DSLR-A900. The full galleries are available at Pentax ist DS2 Gallery & Sony A900 Gallery.

For anyone who is going to lug around your camera, you're going to have to take into account its weight and measurements. The Pentax ist DS2 offers physical measurements of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") along with a weight of 605 grams (1.33 lbs) while the Sony A900 has proportions of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Check the Pentax ist DS2 and Sony A900 in our completely new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will change depending on the lens you are working with at the time. Underneath is a front view scale comparison of the ist DS2 vs the A900.

Factoring in dimensions and weight, the portability rating of the ist DS2 and A900 is 68 and 54 respectively.

Typically, it is hard to picture the difference in sensor measurements just by seeing technical specs. The graphic here will help give you a stronger sense of the sensor measurements in the ist DS2 and A900.

As you can tell, both the cameras come with different megapixels and different sensor measurements. The ist DS2 with its smaller sensor is going to make shooting shallower DOF trickier and the Sony A900 will provide more detail having an extra 19MP. Greater resolution can also let you crop images a good deal more aggressively. The older ist DS2 will be behind when it comes to sensor tech.