Sony A7R vs Sony G3

The following is a complete analysis of the Sony A7R vs Sony G3, one is a Pro Mirrorless and the latter is a Small Sensor Compact and both of them are offered by Sony. There is a huge difference among the sensor resolutions of the A7R (36MP) and G3 (10MP) and the A7R (Full frame) and G3 (1/2.3") posses different sensor sizing.

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The A7R was announced 5 years after the G3 which is a fairly significant gap as far as camera tech is concerned. Both the cameras have different body design with the Sony A7R being a SLR-style mirrorless camera and the Sony G3 being a Compact camera.

Before delving straight to a in-depth comparison, here is a concise synopsis of how the A7R scores versus the G3 in relation to portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Sony Alpha A7R and Sony Cyber-shot DSC-G3. The whole galleries are available at Sony A7R Gallery and Sony G3 Gallery.

When you are looking to travel with your camera often, you have to factor in its weight and measurements. The Sony A7R provides exterior dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 465 grams (1.03 lbs) whilst the Sony G3 has proportions of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") and a weight of 185 grams (0.41 lbs).

Check the Sony A7R vs Sony G3 in the all new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are using during that time. Below is a front view overall size comparison of the A7R and the G3.

Taking into consideration size and weight, the portability rating of the A7R and G3 is 78 and 94 respectively.

In many cases, it's difficult to picture the difference in sensor dimensions only by viewing specs. The pic below should give you a clearer sense of the sensor dimensions in the A7R and G3.

All in all, both the cameras have different megapixels and different sensor dimensions. The A7R using its bigger sensor is going to make getting shallow DOF simpler and the Sony A7R will result in extra detail with its extra 26MP. Higher resolution will also allow you to crop photographs a bit more aggressively. The more recent A7R should have an advantage when it comes to sensor innovation.