Leica Summarit-S 35mm F2.5 Asph. CS lens
Leica Summarit-S 35mm F2.5 Asph. CS lens
8 100 EUR

Leica Summarit-S 35mm F2.5 Asph. CS lens

Classical Wide Angle Lens

Two Aspherical Lenses

Superior Optical Performance

Weather Sealed
Available for order
8 100 EUR
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SUMMARIT-S 35 f/2.5 ASPH. (CS)

The fast and universal wide-angle lens

The lens for every situation

The Summarit-S 35 f/2.5 ASPH. (CS) (28 mm in 35 mm format) is ideal for landscape and architectural photography as well as for studio work. Systematically designed with maximum contrast performance at maximum aperture from infinity to its closest focusing distance, this unusually fast lens is predestined for use as a universal lens.

Its sophisticated design and construction almost completely eliminate optical errors such as distortion and chromatic aberration. The Summarit-S 35 f/2.5 ASPH. (CS) is also available with a built-in central shutter.

The highlights

For studio and architecture photography

Innovative central shutter for maximum design freedom when using additional light

For studio and architectural photography

Excellent imaging performance over the entire range and at all aperture settings

Extremely fast

Creative use of sharpness and blurring for the plastic extraction of motif details

Best image quality up to the edges due to aspherical optics

Weather- and dust-sealed lens

Technical Details

To reduce chromatic aberrations to an absolute minimum, five of the eleven lens elements are manufactured from glasses with anomalous partial dispersion of which three also display particularly low dispersion characteristics. Two elaborately manufactured aspherical surfaces ensure that effects like distortion are kept to an extraordinarily low level.

Rear-group focusing guarantees consistently outstanding imaging properties from infinity to the closest focusing distance.

Modulation Transfer Function

The MTF is indicated both at full aperture and at f/5.6 and f/8 at long taking distances (infinity).

Shown is the contrast in percentage for 5, 10, 20 and 40 lp/mm across the height of the 35mm film format, for tangential (dotted line) and sagittal (solid line) structures, in white light. The 5 and 10 lp/mm will give an indication regarding the contrast ratio for large object structures. The 20 and 40 lp/mm records the resolution of finer and finest object structures.

Distortion & vignetting

Distortion is the deviation of the real image height (in the picture) from the ideal image height. The relative distortion is the percentage deviation. The ideal image height results from the object height and the magnification. The image height of 27.04mm is the radial distance between the edge and the middle of the image field for the format 30mm×45mm.


Article number
2 years manufacturer's warranty
35mm fix
Number of elements/groups
Focus mode
Angle of view
Focal length (mm)
Leica S
Compatible sensor size
Medium Format
Leica S
Manufacturer's warranty
2 év
Article No.
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