Olympus E-P3 vs Sony A330

Following is a comprehensive comparison of the Olympus E-P3 vs Sony A330, former is a Entry-Level Mirrorless while the other is a Entry-Level DSLR by companies Olympus and Sony. The image resolution of the E-P3 (12MP) and the A330 (10MP) is fairly well matched but the E-P3 (Four Thirds) and A330 (APS-C) enjoy different sensor sizes.

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The E-P3 was introduced 2 years after the A330 which is quite a significant difference as far as tech is concerned. The two cameras come with different body type with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Sony A330 being a Compact SLR camera.

Before getting through a complete comparison, below is a short synopsis of how the E-P3 matches up vs the A330 in relation to portability, imaging, features and an overall score.

Following is a sample of the gallery pictures for Olympus PEN E-P3 & Sony Alpha DSLR-A330. The whole galleries are available at Olympus E-P3 Gallery & Sony A330 Gallery.

When you are going to carry around your camera frequently, you should think about its weight and dimensions. The Olympus E-P3 features exterior measurements of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") having a weight of 369 grams (0.81 lbs) whilst the Sony A330 has dimensions of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") having a weight of 529 grams (1.17 lbs).

Check the Olympus E-P3 vs Sony A330 in our newest Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ depending on the lens you select at that time. Here is the front view physical size comparison of the E-P3 vs the A330.

Factoring in size and weight, the portability rating of the E-P3 and A330 is 86 and 67 respectively.

Generally, it is tough to visualize the difference between sensor sizes just by looking at specs. The pic underneath may provide you a far better sense of the sensor measurements in the E-P3 and A330.

All in all, both cameras posses different megapixels and different sensor sizes. The E-P3 with its tinier sensor is going to make shooting shallower DOF more challenging and the Olympus E-P3 will give you extra detail using its extra 2 Megapixels. Greater resolution will help you crop images somewhat more aggressively. The newer E-P3 provides an advantage in sensor tech.