02-15-2019, 07:23 PM
(02-15-2019, 08:26 AM)miro Wrote:Hi Miro,(02-14-2019, 11:53 PM)wim Wrote: It appears the DS lens usies an apodosation coating, rather than an apodisation element.
Very interesting. However, not for me.
Kind regards, Wim
As far as I know apodization element is neutral-gray tinted lens element. The purpose of this is to smooth edges.
At modern days, the same effect can be achieved by combining depth-of-field bracketing with multi exposure, as implemented in the Minolta Maxxum 7's. Maybe modern smartphone apps already have it
Apodization sounds cool marketing bizz, but actually I use the apodization function in my everyday life - the prpose is to smooth the discrete FFT. Many windows I use . All of them are type op apodization functions.
It normally is a separate, additional element. In the case of the 85 F/1.2 DS there actually is no extra element. What Canon have achieved is a graduated (neutral) lenscoating, which will be applied to the two lens elements surrounding the aperture. They took a long time to perfect this, but can now apply this, in [rinciple to any lens, basically because it means the lens design does not have to be altered to cater for apodisation. This is a world first, and you may expect more DS lenses from here onwards.
Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....