Canon SX400 IS vs Sony A7S III

Lets take a deeper look at the Canon SX400 IS versus Sony A7S III, former being a Small Sensor Superzoom while the other is a Pro Mirrorless by rivals Canon and Sony. There is a large difference among the sensor resolutions of the SX400 IS (16MP) and A7S III (12MP) and the SX400 IS (1/2.3") and A7S III (Full frame) posses different sensor measurements.

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The SX400 IS was launched 7 years earlier than the A7S III and that is a fairly serious difference as far as camera tech is concerned. Each of the cameras feature different body design with the Canon SX400 IS being a Compact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before delving right into a detailed comparison, here is a simple introduction of how the SX400 IS scores vs the A7S III with respect to portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Canon PowerShot SX400 IS & Sony Alpha A7S III. The complete galleries are provided at Canon SX400 IS Gallery & Sony A7S III Gallery.

If you're aiming to lug around your camera frequently, you have to think about its weight and size. The Canon SX400 IS features outside measurements of 104mm x 69mm x 80mm (4.1" x 2.7" x 3.1") along with a weight of 313 grams (0.69 lbs) while the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs).

Check the Canon SX400 IS versus Sony A7S III in our brand new Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will vary based on the lens you have attached at that time. Here is a front view physical size comparison of the SX400 IS compared to the A7S III.

Factoring in size and weight, the portability grade of the SX400 IS and A7S III is 81 and 61 respectively.

Usually, it's difficult to picture the gap in sensor measurements simply by looking through a spec sheet. The graphic here might give you a greater sense of the sensor measurements in the SX400 IS and A7S III.

As you can see, the two cameras feature different megapixels and different sensor measurements. The SX400 IS due to its smaller sensor is going to make getting shallower depth of field more difficult and the Canon SX400 IS will provide you with extra detail utilizing its extra 4 Megapixels. Greater resolution will let you crop images way more aggressively. The older SX400 IS will be behind with regard to sensor technology.