Sony A7R vs Sony TX20

Here, we will be analyzing the Sony A7R and Sony TX20, one is a Pro Mirrorless and the latter is a Ultracompact and they are both designed by Sony. There is a significant difference between the resolutions of the A7R (36MP) and TX20 (16MP) and the A7R (Full frame) and TX20 (1/2.3") have totally different sensor dimensions.

Photography Glossary

The A7R was revealed 24 months after the TX20 which makes them a generation away from each other. Both of the cameras feature different body design with the Sony A7R being a SLR-style mirrorless camera and the Sony TX20 being a Ultracompact camera.

Before getting straight to a step-by-step comparison, here is a short view of how the A7R grades against the TX20 in relation to portability, imaging, features and an overall score.

Below is a preview of the gallery images for Sony Alpha A7R and Sony Cyber-shot DSC-TX20. The full galleries are available at Sony A7R Gallery and Sony TX20 Gallery.

In case you're intending to carry around your camera often, you are going to need to factor its weight and size. The Sony A7R comes with physical measurements 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 TX20 has specifications of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") accompanied by a weight of 133 grams (0.29 lbs).

Look at the Sony A7R and Sony TX20 in the new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are working with at that time. Underneath is a front view size comparison of the A7R against the TX20.

Factoring in size and weight, the portability rating of the A7R and TX20 is 78 and 96 respectively.

Usually, it is very hard to see the difference between sensor sizes merely by going over specifications. The picture below may offer you a better sense of the sensor measurements in the A7R and TX20.

To sum up, each of these cameras come with different megapixel count and different sensor sizes. The A7R having a bigger sensor will make achieving shallow DOF easier and the Sony A7R will deliver more detail because of its extra 20MP. Higher resolution will help you crop shots a good deal more aggressively. The younger A7R will have a benefit when it comes to sensor innovation.