Pentax I-10 vs Sony A58

Lets look a little more closely at the Pentax I-10 versus Sony A58, former being a Small Sensor Compact while the other is a Entry-Level DSLR by brands Pentax and Sony. There is a sizable difference between the resolutions of the I-10 (12MP) and A58 (20MP) and the I-10 (1/2.3") and A58 (APS-C) enjoy totally different sensor sizing.

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The I-10 was revealed 4 years before the A58 and that is quite a significant difference as far as tech is concerned. The two cameras offer different body type with the Pentax I-10 being a Compact camera and the Sony A58 being a Compact SLR camera.

Before diving straight into a full comparison, below is a short synopsis of how the I-10 scores versus the A58 when it comes to portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Pentax Optio I-10 & Sony SLT-A58. The full galleries are provided at Pentax I-10 Gallery & Sony A58 Gallery.

In case you're aiming to carry your camera often, you are going to need to think about its weight and volume. The Pentax I-10 comes with exterior dimensions of 101mm x 65mm x 28mm (4.0" x 2.6" x 1.1") accompanied by a weight of 153 grams (0.34 lbs) and the Sony A58 has sizing of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") and a weight of 492 grams (1.08 lbs).

Contrast the Pentax I-10 versus Sony A58 in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will change dependant on the lens you have at that moment. Here is the front view size comparison of the I-10 versus the A58.

Factoring in size and weight, the portability grade of the I-10 and A58 is 93 and 68 respectively.

Usually, it is hard to see the contrast between sensor sizing just by checking technical specs. The graphic here will provide you a much better sense of the sensor dimensions in the I-10 and A58.

As you can tell, both cameras offer different megapixel count and different sensor sizing. The I-10 having a tinier sensor will make getting shallow DOF trickier and the Sony A58 will give extra detail because of its extra 8MP. Greater resolution can also enable you to crop photos a little more aggressively. The older I-10 is going to be disadvantaged with regard to sensor innovation.