Yes—there are standardized lens-testing approaches, but not every quality people talk about is measured equally well.

Commonly measured metrics include sharpness/resolution (often via MTF-style testing), chromatic aberration, distortion, vignetting, and transmission. Software such as Imatest is widely used for this kind of lens analysis and can generate standardized results from test charts.

For published comparisons, sites mentioned by the community include:

• DxOMark: standardized measurements for resolution, transmission, distortion, vignetting, and chromatic aberration across apertures and focal lengths.
• Photozone.de: publishes standardized results for distortion, vignetting, chromatic aberration, and MTF-related sharpness tests.

By contrast, terms like color rendering, saturation, and even contrast are harder to reduce to a single universal lens score because they can depend on lighting, camera sensor, processing, and test method. They’re often discussed in reviews, but less consistently standardized than geometric and resolution-related measurements.

So: yes, standard tests exist for many lens parameters, especially optical defects and sharpness; for color and contrast, comparisons are usually less universal and more dependent on methodology.