Olympus E-420 vs Sony A7R IV

Below, we will be evaluating the Olympus E-420 versus Sony A7R IV, one being a Entry-Level DSLR and the latter is a Pro Mirrorless by brands Olympus and Sony. There exists a crucial gap between the sensor resolutions of the E-420 (10MP) and A7R IV (61MP) and the E-420 (Four Thirds) and A7R IV (Full frame) feature different sensor size.

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The E-420 was released 12 years prior to the A7R IV and that is quite a serious gap as far as technology is concerned. The two cameras come with different body type with the Olympus E-420 being a Compact SLR camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before going through a thorough comparison, below is a quick overview of how the E-420 grades vs the A7R IV in regards to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Olympus E-420 and Sony Alpha A7R IV. The complete galleries are provided at Olympus E-420 Gallery and Sony A7R IV Gallery.

If you are intending to carry your camera regularly, you should factor its weight and size. The Olympus E-420 offers exterior dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") along with a weight of 426 grams (0.94 lbs) whilst the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") accompanied by a weight of 665 grams (1.47 lbs).

Check out the Olympus E-420 versus Sony A7R IV in the new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached at that time. Here is the front view measurements comparison of the E-420 and the A7R IV.

Using dimensions and weight, the portability score of the E-420 and A7R IV is 77 and 62 respectively.

Quite often, its hard to imagine the difference between sensor sizing purely by going over specifications. The visual here will give you a much better sense of the sensor sizes in the E-420 and A7R IV.

To sum up, both cameras have got different megapixel count and different sensor sizing. The E-420 featuring a tinier sensor is going to make achieving shallower depth of field more difficult and the Sony A7R IV will offer you more detail as a result of its extra 51 Megapixels. Higher resolution can also enable you to crop pictures much more aggressively. The older E-420 is going to be disadvantaged in sensor technology.