Pentax S1 vs Sony A33

Its time to examine more closely at the Pentax S1 versus Sony A33, one being a Small Sensor Compact and the other is a Entry-Level DSLR by manufacturers Pentax and Sony. The resolution of the S1 (14MP) and the A33 (14MP) is fairly well matched but the S1 (1/2.3") and A33 (APS-C) come with different sensor sizing.

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The S1 was launched 7 months later than the A33 which means that they are both of a similar generation. Each of these cameras come with different body type with the Pentax S1 being a Compact camera and the Sony A33 being a Compact SLR camera.

Before we go straight into a more detailed comparison, below is a short overview of how the S1 grades versus the A33 with regard to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Pentax Optio S1 and Sony SLT-A33. The complete galleries are provided at Pentax S1 Gallery and Sony A33 Gallery.

For anyone who is going to lug around your camera frequently, you'll need to consider its weight and volume. The Pentax S1 has got physical dimensions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") accompanied by a weight of 157 grams (0.35 lbs) while the Sony A33 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") with a weight of 500 grams (1.10 lbs).

Check the Pentax S1 versus Sony A33 in the all new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen at the time. The following is the front view proportions comparison of the S1 versus the A33.

Looking at size and weight, the portability grade of the S1 and A33 is 93 and 67 respectively.

In many cases, its tough to imagine the contrast between sensor measurements just by reading through specs. The graphic here should provide you a clearer sense of the sensor dimensions in the S1 and A33.

All in all, both cameras have got the exact same MP but different sensor measurements. The S1 includes the tinier sensor which is going to make getting shallow DOF harder. The more modern S1 should have a benefit when it comes to sensor technology.