Sony A7 III vs Sony a1

Let's look a little more closely at the Sony A7 III and Sony a1, both Pro Mirrorless digital cameras and both of them are created by Sony. There is a sizeable difference between the image resolutions of the A7 III (24MP) and a1 (50MP) but both cameras offer the identical sensor size (Full frame).

Photography Glossary

The A7 III was launched 3 years before the a1 and that is quite a large gap as far as tech is concerned. Each of the cameras feature the same body design (SLR-style mirrorless).

Before delving right into a in depth comparison, here is a short summation of how the A7 III grades versus the a1 with respect to portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Sony Alpha A7 III and Sony Alpha a1. The complete galleries are viewable at Sony A7 III Gallery and Sony a1 Gallery.

For those who are aiming to lug around your camera frequently, you need to factor in its weight and measurements. The Sony A7 III offers exterior measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 650 grams (1.43 lbs) and the Sony a1 has proportions of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") having a weight of 737 grams (1.62 lbs).

See the Sony A7 III and Sony a1 in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you use at that time. Underneath is a front view proportions comparison of the A7 III versus the a1.

Taking into consideration size and weight, the portability score of the A7 III and a1 is 63 and 61 respectively.

Often, it's hard to visualize the difference between sensor measurements purely by looking at a spec sheet. The visual underneath should offer you a stronger sense of the sensor sizing in the A7 III and a1.

Clearly, both the cameras come with the identical sensor size but different megapixels. You should expect to see the Sony a1 to resolve greater detail utilizing its extra 26MP. Greater resolution can also enable you to crop photos a good deal more aggressively. The older A7 III is going to be behind when it comes to sensor tech.