Olympus E-PM1 vs Sony A77 II

Its time to look more closely at the Olympus E-PM1 and Sony A77 II, one is a Entry-Level Mirrorless and the latter is a Advanced DSLR by manufacturers Olympus and Sony. There is a significant difference among the sensor resolutions of the E-PM1 (12MP) and A77 II (24MP) and the E-PM1 (Four Thirds) and A77 II (APS-C) enjoy totally different sensor dimensions.

Meta to Introduce 'AI-Generated' Labels for Media starting next month

The E-PM1 was launched 3 years earlier than the A77 II which is a fairly sizable gap as far as camera tech is concerned. Both the cameras come with different body type with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Sony A77 II being a Mid-size SLR camera.

Before getting straight into a full comparison, below is a simple summation of how the E-PM1 grades versus the A77 II in terms of portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Olympus PEN E-PM1 and Sony SLT-A77 II. The complete galleries are provided at Olympus E-PM1 Gallery and Sony A77 II Gallery.

When you are looking to travel with your camera frequently, you're going to have to factor its weight and size. The Olympus E-PM1 comes with outer measurements of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") along with a weight of 265 grams (0.58 lbs) and the Sony A77 II has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 647 grams (1.43 lbs).

Compare the Olympus E-PM1 and Sony A77 II in the all new Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you are employing during that time. Underneath is the front view dimensions comparison of the E-PM1 and the A77 II.

Factoring in size and weight, the portability rating of the E-PM1 and A77 II is 89 and 62 respectively.

Generally, it's difficult to visualise the difference in sensor dimensions simply by researching technical specs. The image below will help offer you a more clear sense of the sensor measurements in the E-PM1 and A77 II.

As you can tell, both cameras have got different megapixel count and different sensor dimensions. The E-PM1 due to its smaller sensor will make getting shallow DOF tougher and the Sony A77 II will render more detail utilizing its extra 12 Megapixels. Higher resolution will make it easier to crop shots much more aggressively. The more aged E-PM1 will be disadvantaged in sensor technology.