Sony A7R III vs Sony A33

Lets take a closer look at the Sony A7R III versus Sony A33, former being a Pro Mirrorless while the other is a Entry-Level DSLR and both are manufactured by Sony. There exists a considerable gap among the resolutions of the A7R III (42MP) and A33 (14MP) and the A7R III (Full frame) and A33 (APS-C) use different sensor sizing.

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The A7R III was brought out 7 years later than the A33 and that is a fairly large difference as far as camera technology is concerned. Each of the cameras offer different body type with the Sony A7R III being a SLR-style mirrorless camera and the Sony A33 being a Compact SLR camera.

Before getting in to a step-by-step comparison, below is a brief summation of how the A7R III scores against the A33 in relation to portability, imaging, features and an overall rating.

This is a sample of the gallery pics for Sony Alpha A7R III & Sony SLT-A33. The entire galleries are viewable at Sony A7R III Gallery & Sony A33 Gallery.

When you are aiming to carry your camera regularly, you're going to have to take into account its weight and volume. The Sony A7R III provides external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs) while the Sony A33 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Examine the Sony A7R III versus Sony A33 in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary depending on the lens you have chosen during that time. Following is the front view size comparison of the A7R III compared to the A33.

Taking into account dimensions and weight, the portability score of the A7R III and A33 is 63 and 67 respectively.

Normally, it is very difficult to imagine the gap in sensor sizing simply by looking through technical specs. The graphic underneath will offer you a greater sense of the sensor sizing in the A7R III and A33.

As you can tell, the 2 cameras enjoy different megapixels and different sensor sizing. The A7R III due to its larger sensor is going to make getting shallower depth of field simpler and the Sony A7R III will result in extra detail having its extra 28MP. Greater resolution will help you crop pics far more aggressively. The newer A7R III provides a benefit with regard to sensor innovation.