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Leica is getting into the lens resurrection game, announcing earlier today that it will bring back the Thambar-M 1:2.2/90: a portrait lens from 1935 thatīs famous for exceptional spherical aberration that creates extremely soft images. The Thambar-M will be an accurate reproduction of the original lens, only this time around in the M mount instead of the L screw mount.
The lens features a 20-bladed iris that produces round, out-of-focus highlights, and only four elements arranged in three groups. Its softness comes about through uncorrected spherical aberrations that are more obvious when the lens is used wide open, and which can be emphasized via the use of an included centre spot filter that prevents axial light passing through the construction.
With the light from the centre of the lens blocked, the majority of image recording light comes from the edges where the aberration is at its strongest.
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Without the centre spot filter the lens is still soft, but becomes sharper as the aperture is closed and the aberration subsides. The barrel of the Thambar has twin aperture markings that show in white the reduced aperture values when the spot filter is used, as well as the recommended range of apertures that can be used with the filter in place.
Originally made only in a run of 3,000 in 1935, this new version will be much more widely available starting mid-November, and will cost you Ģ5095/$6495. For more information see the Leica website, or read this article on the Leica blog.
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