| Introduction | Measurement | Comparison | Conclusion |
With strong performance across most of the DxOMark tests and a video-friendly ultra-quiet stepping AF motor, the Canon 40mm f/2.8 STM is a good choice for anyone looking for an entry-level standard prime lens. The 40mm lens delivers edge-to-edge sharpness at various apertures with no distortion and minimal chromatic aberration, and light transmission is accurate. The only downside is some strong vignetting at the widest apertures.
To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.