| FoM APS-C WC | FoM 35mm WC | FoM APS-C AC | FoM 35mm AC | FoM APS-C BC | FoM 35mm BC | |||
| EF 300mm f4L IS USM | 100% | 80% | 100% | 91% | 100% | 100% | ||
| EF 100-400mm f4.5-5.6L IS USM 300 mm (Est) | 80% | 57% | 100% | 89% | 100% | 100% | ||
| EF 100-400mm f4.5-5.6L IS USM 300 mm (Est) | 80% | 57% | 100% | 89% | 100% | 100% | ||
| EF 75-300mm f4-5.6 IS USM 300 mm (Est) | 55% | 31% | 69% | 42% | 71% | 69% | ||
| EF 90-300mm f4.5-5.6 (USM) 300 mm (Est) | 33% | 22% | 42% | 27% | 44% | 42% | ||
| EF 70-300mm f4.5-5.6 DO IS USM 300 mm (Est) | 76% | 50% | 89% | 75% | 100% | 87% | ||
| EF 75-300mm f4-5.6 III (USM) 300 mm (Est) | 50% | 29% | 67% | 41% | 71% | 68% | ||
| EF 90-300mm f4.5-5.6 (USM) 300 mm (Est) | 33% | 22% | 42% | 27% | 44% | 42% | ||