Elmarit-S 30 f/2.8 ASPH. (CS)

The super-wide lens

Elmarit-S 30 f/2.8 ASPH.
Elmarit-S 30 f/2.8 ASPH. Elmarit-S 30 f/2.8 ASPH. CS

A wider view of the world

The Elmarit-S 30 f/2.8 ASPH. (24 mm in 35 mm format) almost belongs in the domain of superwide lenses. At the same time, the lens is optimized for maximum contrast rendition and top resolution from its widest aperture on, and it guarantees a constantly high level of quality from its closest focusing distance to infinity.

The extraordinary degree of correction of this optical design is reflected, for example, in its almost complete freedom from distortion. The Elmarit-S 30 f/2.8 ASPH. (CS) is also available with central shutter.

The highlights
For creative image composition

  • Innovative central shutterfor maximum design freedom when using additional light
  • For creative image compositions
  • 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

Of its 13 elements in nine groups, five are made of glasses with anomalous partial dispersion. Three of these are fluoride lens elements with particularly low dispersion for the correction of chromatic aberrations. Three elements with a particularly high refractive index and two aspherical elements minimize monochromatic aberration.

Only the rear group, containing six elements, moves during focusing, which, in this design, ensures excellent performance from infinity to its closest focusing range.

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.

MTF-Kurve Blende 2.8 | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff
MTF-Kurve Blende 5.6 | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff
MTF-Kurve Blende 8.0 | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff

Distortion & vignetting

Effektive Verzeichnung | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff
Relative Verzeichnung | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff
Vignettierung | Elmarit-S 2.8/30 ASPH. | 1512x1008 BG=ffffff

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. 

More Details

The graph of the effective distortion illustrates the appearance of straight horizontal and vertical lines in the picture.

Vignetting is a continous decrease of the illumination to the edges of the image field. The graph shows the percentage loss of illumination over the image height. 100% means no vignetting.

Technical Data

Elmarit-S 30 f/2.8 ASPH.

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Order no. 11073 | CS: 11074
Image angle (diagonal, horizontal, vertical) approx. 83° / 73° / 52°, corresponds to approx. 24 mm focal length in 35 mm format
Optical design
Number of lenses/groups 13 / 9
Entrance pupil infinity: 92.19 mm (in front of bayonet in incident light direction)
close focus limit: 92.19 mm (in front of bayonet in incident light direction)
Focusing range 0.5 m to ∞
Distance setting
Scales Combined meter/feet graduation
Smallest object field 338 mm × 508 mm
Largest reproduction ratio 1 : 11.3
Aperture
Setting / Function Electronically controlled diaphragm, set using setting / selection dial on camera, including half values
Lowest value 22
Bayonet Leica S bayonet
Filter mount / Lens hood External bayonet for lens hood (included), internal thread for E72 filter, filter mount does not rotate
Dimensions and weight
Length to bayonet mount approx. 128 / 156 mm (without / with lens hood)
Largest diameter approx. 88 / 132 mm (without / with lens hood)
Weight approx. 1060 / 1140 g (without / with central shutter)

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Elmarit-S 30 f/2.8 ASPH.

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