Pentax K-3 II vs Sony A900

Here is a detailed assessment of the Pentax K-3 II versus Sony A900, both Advanced DSLR digital cameras by companies Pentax and Sony. The sensor resolution of the K-3 II (24MP) and the A900 (25MP) is fairly similar but the K-3 II (APS-C) and A900 (Full frame) have different sensor sizes.

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The K-3 II was unveiled 6 years later than the A900 and that is quite a sizable difference as far as tech is concerned. Both the cameras have the same body design (Mid-size SLR).

Before diving right into a more detailed comparison, here is a concise summary of how the K-3 II matches up versus the A900 when it comes to portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Pentax K-3 II & Sony Alpha DSLR-A900. The full galleries are available at Pentax K-3 II Gallery & Sony A900 Gallery.

For those who are aiming to carry your camera, you'll have to factor its weight and volume. The Pentax K-3 II has got external measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") having a weight of 800 grams (1.76 lbs) while the Sony A900 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Compare the Pentax K-3 II versus Sony A900 in our brand new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ dependant on the lens you choose at the time. Here is a front view measurement comparison of the K-3 II and the A900.

Taking into account size and weight, the portability rating of the K-3 II and A900 is 59 and 54 respectively.

Oftentimes, it's difficult to picture the contrast between sensor sizing purely by reviewing technical specs. The photograph below will help provide you a far better sense of the sensor measurements in the K-3 II and A900.

As you can tell, both cameras provide different megapixels and different sensor sizing. The K-3 II having a tinier sensor is going to make shooting shallower depth of field more challenging and the Sony A900 will offer you extra detail having an extra 1 Megapixels. Greater resolution will let you crop pics more aggressively. The younger K-3 II provides an advantage in sensor technology.