Nikon Z 100-400mm f/4.5-5.6 VR S vs …

Higher-scoring camera lenses include Canon RF 50mm f/1.2L USM, Canon RF 28-70mm f/2L USM, Canon RF 50mm f/1.2L USM. Each scores above the Nikon Z 100-400mm f/4.5-5.6 VR S's 91/100 on the Specdex weighted rubric.

Cheaper alternatives in the same category include Canon RF 50mm f/1.2L USM, Canon RF 50mm f/1.2L USM, Sony FE 50mm f/1.4 GM — ranked by Specdex score among options priced below the Nikon Z 100-400mm f/4.5-5.6 VR S's $2,699 MSRP.

The closest matchups (within 3 Specdex points) are Sony FE 16-35mm f/2.8 GM II, Sony FE 35mm f/1.4 GM, Sony FE 85mm f/1.4 GM II. These are the head-to-head rivals where sub-score differences matter most.

The closest non-Nikon rivals by Specdex score are Sigma 35-150mm f/2-2.8 DG DN Art, Fujifilm XF 56mm f/1.2 R, Canon EF 24-70mm f/2.8L II USM. Cross-brand pairings compare on the same weighted rubric, so ecosystem differences show up in the sub-scores rather than hiding behind marketing tiers.