Olympus E-M10 vs Sony A900

On this page, we are analyzing the Olympus E-M10 and Sony A900, former being a Entry-Level Mirrorless while the other is a Advanced DSLR by competitors Olympus and Sony. There exists a sizable gap among the resolutions of the E-M10 (16MP) and A900 (25MP) and the E-M10 (Four Thirds) and A900 (Full frame) posses different sensor size.

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The E-M10 was unveiled 5 years later than the A900 and that is a fairly significant difference as far as camera technology is concerned. The two cameras have different body design with the Olympus E-M10 being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.

Before we go right into a full comparison, here is a simple highlight of how the E-M10 matches up against the A900 with regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Olympus OM-D E-M10 & Sony Alpha DSLR-A900. The full galleries are viewable at Olympus E-M10 Gallery & Sony A900 Gallery.

If you're aiming to carry your camera often, you will want to consider its weight and dimensions. The Olympus E-M10 features outside measurements of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") with a weight of 396 grams (0.87 lbs) while the Sony A900 has dimensions of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Take a look at the Olympus E-M10 and Sony A900 in our newest Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary dependant on the lens you have during that time. The following is a front view dimension comparison of the E-M10 vs the A900.

Factoring in dimensions and weight, the portability rating of the E-M10 and A900 is 82 and 54 respectively.

Typically, it is very tough to picture the gap in sensor sizing simply by seeing specs. The photograph here should offer you a far better sense of the sensor sizing in the E-M10 and A900.

All in all, both of these cameras have different megapixels and different sensor sizing. The E-M10 having a smaller sensor is going to make shooting shallow depth of field more challenging and the Sony A900 will produce greater detail having an extra 9MP. Greater resolution can also enable you to crop pics a bit more aggressively. The newer E-M10 provides a benefit in sensor innovation.