Olympus E-M1 vs Sony A330

Its time to take a deeper look at the Olympus E-M1 versus Sony A330, one is a Pro Mirrorless and the latter is a Entry-Level DSLR by brands Olympus and Sony. There is a crucial difference among the sensor resolutions of the E-M1 (16MP) and A330 (10MP) and the E-M1 (Four Thirds) and A330 (APS-C) boast totally different sensor measurements.

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The E-M1 was released 4 years after the A330 which is a fairly serious gap as far as camera tech is concerned. Each of these cameras have different body design with the Olympus E-M1 being a SLR-style mirrorless camera and the Sony A330 being a Compact SLR camera.

Before going right into a thorough comparison, here is a concise highlight of how the E-M1 grades versus the A330 with regards to portability, imaging, features and an overall mark.

The following is a preview of the gallery photos for Olympus OM-D E-M1 and Sony Alpha DSLR-A330. The complete galleries are viewable at Olympus E-M1 Gallery and Sony A330 Gallery.

In case you're going to travel with your camera frequently, you'll have to consider its weight and size. The Olympus E-M1 features exterior dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") with a weight of 497 grams (1.10 lbs) while the Sony A330 has specifications of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") and a weight of 529 grams (1.17 lbs).

Compare the Olympus E-M1 versus Sony A330 in the new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with during that time. Below is a front view proportions comparison of the E-M1 compared to the A330.

Taking into account size and weight, the portability score of the E-M1 and A330 is 71 and 67 respectively.

Often, it is very hard to see the gap in sensor dimensions purely by seeing specs. The pic below should provide you a greater sense of the sensor dimensions in the E-M1 and A330.

All in all, both of these cameras have different megapixel count and different sensor dimensions. The E-M1 due to its smaller sensor will make getting bokeh more challenging and the Olympus E-M1 will show more detail as a result of its extra 6MP. Higher resolution can also let you crop shots a bit more aggressively. The fresher E-M1 is going to have an edge when it comes to sensor technology.