Sony A7 III vs Sony A100

Lets look closer at the Sony A7 III vs Sony A100, former is a Pro Mirrorless while the latter is a Entry-Level DSLR and they are both sold by Sony. There exists a substantial gap among the resolutions of the A7 III (24MP) and A100 (10MP) and the A7 III (Full frame) and A100 (APS-C) use totally different sensor measurements.

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The A7 III was revealed 11 years after the A100 which is a fairly big difference as far as camera technology is concerned. Each of these cameras offer different body type with the Sony A7 III being a SLR-style mirrorless camera and the Sony A100 being a Compact SLR camera.

Before delving through a thorough comparison, below is a concise introduction of how the A7 III grades vs the A100 with regard to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Sony Alpha A7 III & Sony Alpha DSLR-A100. The full galleries are available at Sony A7 III Gallery & Sony A100 Gallery.

If you're aiming to travel with your camera regularly, you will have to factor its weight and volume. The Sony A7 III has external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 650 grams (1.43 lbs) and the Sony A100 has sizing of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") along with a weight of 638 grams (1.41 lbs).

Take a look at the Sony A7 III vs Sony A100 in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ depending on the lens you choose at the time. Here is the front view measurement comparison of the A7 III versus the A100.

Looking at dimensions and weight, the portability score of the A7 III and A100 is 63 and 64 respectively.

Sometimes, it's difficult to see the contrast in sensor dimensions purely by looking through specifications. The pic below should give you a clearer sense of the sensor sizing in the A7 III and A100.

Plainly, both cameras offer different megapixel count and different sensor dimensions. The A7 III with its bigger sensor will make shooting shallow depth of field simpler and the Sony A7 III will render extra detail because of its extra 14 Megapixels. Higher resolution can also help you crop shots a little more aggressively. The more recent A7 III will have an advantage when it comes to sensor tech.