Weight & dimensions
| Diameter |
90 mm |
| Filter size |
82 mm |
Lens system
| Maximum aperture number |
22 |
| Aperture range (F-F) |
2.5 - 22 |
| Closest focusing distance |
0.5 m |
| Number of aspheric elements |
1 |
| Minimum aperture number |
2.5 |
Summarit-S 1:2,5/70 mm ASPH.
This standard lens, available with or without a central shutter, gives priority to top imaging performance for all applications. In addition to an aspherical surface, special glass with anomalous partial dispersion or high refractive power is used. Focusing combined with a floating element provides consistent high contrast performance through the entire working range, from close-up to infinity.