engineers to achieve a beautiful bokeh shape using the variable element of the Canon (180mm F3.5 and 135mm F2.8).
patents pending 180mm F3.5 and 135mm F2.8 Canon is
- . To achieve (apodization filter) apodization filter of variable formula, it seems able to control the beautiful bokeh by electric drive system. variable element shape: Canon
- patent. Voltage is applied, changing the shape of the interface. Obtain the apodization effect. Varying refractive power, the Abbe number.
- apodization has been used to 135mm F2.8 (T4.5) STF (Sony) Minolta. But also well-known technology is also a variable element of apodization, Canon has done to reduce the aberration variation, seems to have aimed at high performance.
. Lens of the patent, because such a filter can be adjusted by the effect of electric drive, if commercialized if, for those who want extremely bokeh of the lens is going to be a very interesting item.
digital camera info