This line of lenses provides the photographer with an extensive spectrum of focal lengths for digital shots in the very highest imaging quality with adjustable professional cameras.  The fine gradation meets the demands of every motif situation and all chip and scanner formats.  Focal lengths from 35 mm mean that real wide-angle shots are possible even with the smaller chip sizes while still allowing large movements.  All Apo-Sironar digital lenses are characterised by excellent sharpness and brilliance together with total freedom from colour fringes in real apo quality.

Due to the relativeley small formats on the one hand (higher diffraction!) and the high light requirements of the CCD image sensor on the other, digital photography does not allow the cameras to be stopped down as much as in conventional large-format photography.  As a result, these lenses have been optimised to a working aperture of 8 to 11.

Because both the surface of the chip sensors and the area scanned by the CCD line sensor have greater planarity than conventional roll and sheet films, special attention was given to the correction of the curvature of field.  The freedom from distortion, which is so important for product and building photography, and the uniformity of illumination are also present.

The Apo-Macro-Sirnar digital provides a special lens at the same superb performance level of the Apo-Sironar digital series for high resolution digital photos at reproduction scales from 1:5 to 2:1.