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LEICA ELMAR-M 24 mm f/3.8 ASPH.
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The LEICA ELMAR-M 24mm f/3.8 ASPH. is an extremely compact lens, especially for such a wide angle, which also offers out-
standing imaging performance. Even with at full stop, it delivers uniformly excellent reproduction quality over the entire image
field, only deteriorating slightly towards the edges in the close-up range. This performance can only be improved slightly by stop-
ping down, which means that you can take photographs with at full stop without concerns, unless your compositional ideas call
for a greater depth of field that can only be achieved with smaller apertures. The vignetting characteristic of every optical system
is naturally more pronounced on a super wide angle lens than on normal and long focal length lenses. With the diaphragm com-
pletely open, it is a maximum - i.e. in the corners of the image - of around 1.9 stops for the 35mm format, or around 1.1 stops on
Leica M8 models with their slightly smaller format. Stopping down to 5.6 visibly reduces this light falloff at the image edges - to
1.4 and 0.8 stops respectively. Stopping down further does not bring about any notable reduction since essentially only the natu-
ral vignetting remains. The lens' maximum distortion is around 1% and therefore hardly perceptible.The retrofocus-like construc-
tion is made up of a total of eight lens elements and the use of an aspherical surface and glass types with anomalous color
dispersion (partial dispersion) make a crucial contribution towards restricting aberrations to an absolute minimum.
Summary: The LEICA ELMAR-M 24mm f/3.8 ASPH. not only offers optimum imaging performance but also - for its focal length -
compact dimensions and also provides all Leica M users with an affordable introduction to the world of super wide angle photo-
graphy.
Lens shape
ASPH.