Sony A7R IV vs Sony A57

Let's take a more detailed look at the Sony A7R IV and Sony A57, former being a Pro Mirrorless while the latter is a Entry-Level DSLR and both are created by Sony. There is a substantial difference among the image resolutions of the A7R IV (61MP) and A57 (16MP) and the A7R IV (Full frame) and A57 (APS-C) feature different sensor sizing.

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The A7R IV was released 6 years later than the A57 and that is a fairly big difference as far as camera tech is concerned. Each of the cameras come with different body type with the Sony A7R IV being a SLR-style mirrorless camera and the Sony A57 being a Compact SLR camera.

Before we go straight into a detailed comparison, below is a quick overview of how the A7R IV matches up versus the A57 when considering portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Sony Alpha A7R IV & Sony SLT-A57. The complete galleries are provided at Sony A7R IV Gallery & Sony A57 Gallery.

If you are aiming to carry your camera, you'll need to consider its weight and proportions. The Sony A7R IV provides outside measurements of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") with a weight of 665 grams (1.47 lbs) and the Sony A57 has measurements of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") along with a weight of 618 grams (1.36 lbs).

See the Sony A7R IV and Sony A57 in our newest Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you have chosen at that moment. The following is the front view measurement comparison of the A7R IV against the A57.

Using size and weight, the portability score of the A7R IV and A57 is 62 and 64 respectively.

Often, it's hard to visualize the contrast in sensor sizing purely by looking through specifications. The photograph here will help give you a greater sense of the sensor sizing in the A7R IV and A57.

Plainly, the two cameras posses different megapixel count and different sensor sizing. The A7R IV because of its bigger sensor is going to make getting bokeh easier and the Sony A7R IV will provide you with extra detail as a result of its extra 45 Megapixels. Higher resolution will make it easier to crop photographs somewhat more aggressively. The newer A7R IV should have a benefit in sensor tech.