Sony A7R IV vs Sony A77

In this article, we will be analyzing the Sony A7R IV and Sony A77, former being a Pro Mirrorless while the latter is a Advanced DSLR and they are both designed by Sony. There is a noticeable difference among the image resolutions of the A7R IV (61MP) and A77 (24MP) and the A7R IV (Full frame) and A77 (APS-C) use different sensor sizing.

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The A7R IV was revealed 7 years later than the A77 and that is a fairly sizable difference as far as camera tech is concerned. Both cameras offer different body type with the Sony A7R IV being a SLR-style mirrorless camera and the Sony A77 being a Mid-size SLR camera.

Before diving in to a complete comparison, below is a concise summation of how the A7R IV matches up vs the A77 in relation to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Sony Alpha A7R IV & Sony SLT-A77. The full galleries are provided at Sony A7R IV Gallery & Sony A77 Gallery.

For anyone who is looking to carry your camera regularly, you are going to need to think about its weight and size. The Sony A7R IV features outer dimensions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") accompanied by a weight of 665 grams (1.47 lbs) while the Sony A77 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Analyze the Sony A7R IV and Sony A77 in our newest Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary dependant on the lens you are using during that time. Underneath is the front view proportions comparison of the A7R IV vs the A77.

Taking into account size and weight, the portability grade of the A7R IV and A77 is 62 and 59 respectively.

Oftentimes, it is very tough to imagine the contrast in sensor sizing just by seeing specs. The graphic here will help give you a greater sense of the sensor sizes in the A7R IV and A77.

As you can plainly see, both of those cameras enjoy different megapixel count and different sensor sizing. The A7R IV having a bigger sensor is going to make shooting shallower DOF simpler and the Sony A7R IV will show greater detail because of its extra 37MP. Higher resolution will allow you to crop photographs far more aggressively. The more modern A7R IV provides an advantage with regard to sensor innovation.