Olympus E-M1 III vs Sony A700

Here is a detailed assessment of the Olympus E-M1 III versus Sony A700, former being a Pro Mirrorless while the other is a Advanced DSLR by rivals Olympus and Sony. There exists a considerable gap among the image resolutions of the E-M1 III (20MP) and A700 (12MP) and the E-M1 III (Four Thirds) and A700 (APS-C) feature different sensor measurements.

Pentax 17 Pre-Orders Outperform Expectations by a Landslide

The E-M1 III was brought out 12 years later than the A700 and that is a fairly large difference as far as camera technology is concerned. Both of the cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A700 being a Mid-size SLR camera.

Before we go straight into a full comparison, below is a brief summary of how the E-M1 III matches up vs the A700 with respect to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Olympus OM-D E-M1 Mark III & Sony Alpha DSLR-A700. The entire galleries are provided at Olympus E-M1 III Gallery & Sony A700 Gallery.

For those who are going to carry your camera frequently, you will have to consider its weight and volume. The Olympus E-M1 III offers outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) while the Sony A700 has sizing of 142mm x 105mm x 80mm (5.6" x 4.1" x 3.1") having a weight of 768 grams (1.69 lbs).

Look at the Olympus E-M1 III versus Sony A700 in our completely new Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will vary depending on the lens you have during that time. Underneath is the front view measurements comparison of the E-M1 III vs the A700.

Looking at dimensions and weight, the portability grade of the E-M1 III and A700 is 67 and 58 respectively.

Typically, it is difficult to picture the difference in sensor sizing purely by researching a spec sheet. The visual here might provide you a much better sense of the sensor sizes in the E-M1 III and A700.

Clearly, both of the cameras offer different resolutions and different sensor sizing. The E-M1 III featuring a smaller sensor is going to make achieving shallow DOF more challenging and the Olympus E-M1 III will provide you with greater detail having its extra 8 Megapixels. Greater resolution will allow you to crop images a little more aggressively. The younger E-M1 III provides an advantage in sensor innovation.