The Thambar’s distinctive, dreamily romantic look and unmistakeable bokeh are created by deliberately undercorrected spherical aberration, along with 20 aperture blades for the circular rendition of out-of-focus highlights. Because the aberration increases towards the periphery of the optical system, both the extension of the depth of field and the degree of diffusion can be precisely controlled via the stepless aperture ring.
Widening the aperture increases the soft focus, whereas stopping down reduces the effect. The lightproof area at the centre of the soft focus spot filter prevents the axial rays (which generate sharp focus) from reaching the sensor – resulting in an even more intense soft focus appearance.
Scope of delivery
As with the original Thambar of 1935, the lens hood, filter surround and both lens caps are made of metal. The hood can be attached to the lens back-to-front during transport.
Felt linings inside the lens hood and front cap serve to protect the metal surfaces from scratches.
A hard leather case in vintage brown keeps the Thambar perfectly secure, whereby the center spot filter can be safely stored in the lid. The leather case, designed to closely resemble the original quiver sold more than eighty years ago, ensures excellent protection during transport.