58 mm Lens Filter Thread (M58 × 0.75)
Direct Answer
The 58 mm Filter Thread (M58 × 0.75 mm metric pitch) is the standard entry-to-midrange thread diameter for standard zoom kit lenses (Canon EF-S 18-55mm IS), fast 50mm f/1.4 primes, and medium telephoto primes (Canon EF 85mm f/1.8, Voigtländer Nokton primes).
Source: DIN 4503 / ISO Standards
Specs
| Thread Diameter | 58.0 mm (nominal ø58) |
| Metric Thread Pitch | 0.75 mm (M58 × 0.75) |
| Target Lenses | 50mm f/1.4 primes, 85mm f/1.8, 18-55mm kit lenses (Canon), 55-250mm telezooms |
| Notable Glass | Canon EF 50mm f/1.4 USM, Canon EF 85mm f/1.8 USM, Fujifilm XF 56mm f/1.2 R, Voigtländer 50mm f/1.2 |
Standard Prime Diameter
58 mm is the classic diameter for $50\text{ mm } f/1.4$ double-Gauss prime lenses, where the front element must be wide enough to support an entrance pupil diameter of $35.7\text{ mm}$ ($50\text{ mm} / 1.4$) with sufficient mechanical bezel housing.