Olympus E-1 vs Sony A7R IV

Here, we are reviewing the Olympus E-1 versus Sony A7R IV, one is a Pro DSLR and the other is a Pro Mirrorless by companies Olympus and Sony. There exists a significant gap between the image resolutions of the E-1 (5MP) and A7R IV (61MP) and the E-1 (Four Thirds) and A7R IV (Full frame) provide totally different sensor sizes.

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The E-1 was launched 16 years prior to the A7R IV which is quite a sizable gap as far as technology is concerned. Both cameras feature different body design with the Olympus E-1 being a Large SLR camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before we go into a step-by-step comparison, here is a short highlight of how the E-1 matches up versus the A7R IV in the way of portability, imaging, features and an overall score.

Following is a sample of the gallery pictures for Olympus E-1 and Sony Alpha A7R IV. The complete galleries are provided at Olympus E-1 Gallery and Sony A7R IV Gallery.

When you are planning to carry around your camera, you're going to have to think about its weight and size. The Olympus E-1 features exterior dimensions of 141mm x 104mm x 81mm (5.6" x 4.1" x 3.2") and a weight of 735 grams (1.62 lbs) while the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") having a weight of 665 grams (1.47 lbs).

Look at the Olympus E-1 versus Sony A7R IV in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change depending on the lens you are using at the time. Here is a front view sizing comparison of the E-1 versus the A7R IV.

Taking into consideration dimensions and weight, the portability score of the E-1 and A7R IV is 59 and 62 respectively.

More often than not, it is very tough to see the gap between sensor sizes simply by checking specs. The image underneath will provide you a more clear sense of the sensor sizes in the E-1 and A7R IV.

All in all, the 2 cameras feature different megapixels and different sensor sizes. The E-1 due to its tinier sensor will make shooting shallower DOF tougher and the Sony A7R IV will give you extra detail utilizing its extra 56 Megapixels. Greater resolution will also allow you to crop pics way more aggressively. The more aged E-1 is going to be disadvantaged with regard to sensor tech.