12-15-2014, 11:27 PM
It's in-line with th e spherical surfaces, as far as aspheres go - I don't know. I don't work in 'photographic lens' construction, my lab builds systems on staging equipment on top of air-float tables, usually in open air to evaluate aberration theory.
For general research, 1/50th or 1/100th wave is a good starting point. Many production optics are not to this precision, as it increases cost rapidly. Medical optics tend to be 1/50th, imaging optics may be to a similar precision.
I do not believe panasonic has a better manufacturing technique than the "elite" (Zeiss, Leica, Schneider, etc) or the giants (Canon, Nikon) as there are no secret techniques in optical fabrication, only ways to optimize the process. They may polish with greater care than lower end optics from the giants, but I doubt the aspheres in canikon's "very" expensive lenses are not as well polished as those in anything panasonic makes, but I may be wrong.
For general research, 1/50th or 1/100th wave is a good starting point. Many production optics are not to this precision, as it increases cost rapidly. Medical optics tend to be 1/50th, imaging optics may be to a similar precision.
I do not believe panasonic has a better manufacturing technique than the "elite" (Zeiss, Leica, Schneider, etc) or the giants (Canon, Nikon) as there are no secret techniques in optical fabrication, only ways to optimize the process. They may polish with greater care than lower end optics from the giants, but I doubt the aspheres in canikon's "very" expensive lenses are not as well polished as those in anything panasonic makes, but I may be wrong.