Pentax K-3 III vs Sony A77

Lets look a bit more in depth at the Pentax K-3 III versus Sony A77, both Advanced DSLR cameras by competitors Pentax and Sony. The image resolution of the K-3 III (26MP) and the A77 (24MP) is relatively comparable and both cameras provide the same sensor dimensions (APS-C).

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The K-3 III was revealed 9 years later than the A77 and that is a fairly significant difference as far as camera tech is concerned. Both cameras have the same body design (Mid-size SLR).

Before going right into a complete comparison, here is a simple summation of how the K-3 III grades vs the A77 when it comes to portability, imaging, features and an overall rating.

The following is a preview of the gallery photos for Pentax K-3 Mark III & Sony SLT-A77. The full galleries are available at Pentax K-3 III Gallery & Sony A77 Gallery.

When you are going to carry your camera often, you'll need to think about its weight and dimensions. The Pentax K-3 III has got exterior measurements of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") accompanied by a weight of 820 grams (1.81 lbs) and the Sony A77 has dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") and a weight of 732 grams (1.61 lbs).

Look at the Pentax K-3 III versus Sony A77 in our brand new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary depending on the lens you are utilising at the time. Underneath is a front view dimensions comparison of the K-3 III versus the A77.

Looking at size and weight, the portability grade of the K-3 III and A77 is 58 and 59 respectively.

In many cases, its tough to see the contrast in sensor sizing just by checking out a spec sheet. The visual below will provide you a much better sense of the sensor sizing in the K-3 III and A77.

Clearly, both of these cameras have the same sensor dimensions albeit not the same megapixels. You can count on the Pentax K-3 III to produce extra detail because of its extra 2MP. Higher resolution will also make it easier to crop shots a bit more aggressively. The fresher K-3 III is going to have a benefit in sensor technology.