Optical Scoring

Wuseria rates every lens with enough optical data on two scales: a per-genre mark (1 to 5 in half-star steps) and an overall Optical Quality score (0 to 10).

Genre marks

Each genre has a formula with primary and secondary optical fields. Primary fields carry 3x the weight of secondary fields. The weighted average of all available fields produces a raw score on a 0-2 scale, which maps to marks 1 through 5.

The primary floor rule prevents a lens from earning a high mark if any single primary field is weak. The final score is capped at the lowest primary field value. A lens with excellent secondary scores but poor coma control will still score low for nightscape.

A lens must have at least 7 of 14 optical fields populated to receive any genre mark. Lenses without sufficient data show “Not yet scored” instead of a number.

Optical Quality (OQ)

OQ is a single 0-10 number summarizing overall optical performance across all genres. It uses the same 14 optical fields but with weights derived from how often each field appears as a primary factor across all genre formulas. Fields important to many genres (like center sharpness stopped down) carry more weight than niche fields.

Mark scale

Mark	Meaning
5.0	Exceptional — top-tier for the genre
4.0-4.5	Very good — strong performer
3.0-3.5	Good — competent for the genre
2.0-2.5	Below average — usable with limitations
1.0-1.5	Poor — not recommended for this genre

Editorial picks

Some lenses receive an editorial pick badge for a genre. These are lenses that real-world experience and photographer consensus recognize as exceptional, even if the formula alone does not fully capture their strengths.

Data sources

Optical field scores come from lab tests and detailed field reports by trusted review sources: LensTip, Optical Limits, and DPReview. Each field is rated on a 0-2 scale where 0 is poor, 1 is average, and 2 is excellent. Scores are not estimated or interpolated — if a trusted source has not tested a field, it remains empty.