The Sony A7 II and A7 III are both part of Sony’s Alpha series of full-frame mirrorless cameras, but the A7 III is a more recent and advanced model compared to the A7 II. Here’s a comparison between the two:
Image Sensor: Both cameras feature a full-frame sensor, but the A7 III has a higher resolution 24.2-megapixel sensor compared to the 24.3-megapixel sensor in the A7 II. The A7 III’s sensor provides better performance in low-light conditions and improved image quality.
Autofocus System: The A7 III has a vastly improved autofocus system compared to the A7 II. It features 693 phase-detection and 425 contrast-detection AF points, providing faster and more accurate focus, particularly for moving subjects and in challenging lighting conditions. The A7 II, by contrast, has 117 phase-detection and 25 contrast-detection points.
Image Stabilization: While both cameras offer in-body image stabilization (IBIS), the A7 III’s system is more advanced, providing 5 stops of compensation compared to the A7 II’s 4.5 stops. This gives the A7 III an edge in reducing the effects of camera shake.
Continuous Shooting: The A7 III has a faster continuous shooting speed at 10 frames per second, compared to the A7 II’s 5 fps, making it better suited for capturing fast-moving subjects.
Video Capabilities: The A7 III offers better video capabilities, including 4K recording with full pixel readout and no pixel binning, resulting in higher quality video output. It also has S-Log3 and Hybrid Log-Gamma (HLG) profiles for greater dynamic range and color grading options, which the A7 II lacks.
Battery Life: The A7 III has a significantly improved battery life, offering approximately 710 shots per charge compared to the A7 II’s 350 shots.
Price: As a more recent and advanced model, the A7 III generally comes with a higher price tag compared to the older A7 II.
Both cameras have their own strengths, but the A7 III offers significant improvements in various key areas, such as autofocus, image quality, video capabilities, and battery life. If these features are important to you, the A7 III might be a better choice despite the higher cost. However, the A7 II might still be a suitable option for those on a tighter budget or for less demanding photographic needs.