Olympus E-M1 III vs Pentax P70

Let's look a bit more in depth at the Olympus E-M1 III versus Pentax P70, former is a Pro Mirrorless while the latter is a Ultracompact by companies Olympus and Pentax. There is a substantial difference among the image resolutions of the E-M1 III (20MP) and P70 (12MP) and the E-M1 III (Four Thirds) and P70 (1/2.3") boast totally different sensor measurements.

Photography Glossary

The E-M1 III was manufactured 11 years after the P70 which is a fairly big difference as far as camera tech is concerned. Both the cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax P70 being a Ultracompact camera.

Before getting straight to a complete comparison, here is a simple summation of how the E-M1 III grades vs the P70 in regards to portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Olympus OM-D E-M1 Mark III & Pentax Optio P70. The entire galleries are provided at Olympus E-M1 III Gallery & Pentax P70 Gallery.

For those who are planning to travel with your camera frequently, you will want to take into account its weight and dimensions. The Olympus E-M1 III comes with physical 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 Pentax P70 has dimensions of 97mm x 54mm x 22mm (3.8" x 2.1" x 0.9") along with a weight of 155 grams (0.34 lbs).

Take a look at the Olympus E-M1 III versus Pentax P70 in our completely new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will vary depending on the lens you choose at that time. Here is a front view physical size comparison of the E-M1 III versus the P70.

Taking into account size and weight, the portability rating of the E-M1 III and P70 is 67 and 95 respectively.

Often, it's tough to see the gap in sensor dimensions just by seeing specifications. The picture below will provide you a better sense of the sensor sizes in the E-M1 III and P70.

Plainly, the two cameras have different megapixels and different sensor dimensions. The E-M1 III featuring a bigger sensor will make achieving bokeh easier and the Olympus E-M1 III will produce more detail due to its extra 8 Megapixels. Higher resolution will help you crop photographs a bit more aggressively. The fresher E-M1 III will have an advantage when it comes to sensor innovation.