I think this has been posted by me and possibly others previously, but I think it is worth a refresh to some that may not have seen it. Such an instructional video of why cinematic lenses like ARRI are so large, heavy and expensive, sort of akin to why Nikon's f1.2 primes are so large, heavy, and expensive.
As the guest from ARRI states on this video, every aspect of a lens design may compromise another aspect of that lens. So, you may want to remove CA, but that may require special glass which then may affect focus breathing, or distortion, or edge to edge sharpness or the best bokeh etc. So, you may want superb bokeh but that comes with a tradeoff of lens sharpness, or spherical aberration pf CA etc. Much of this is what AnotherMike has been conveying with regards to lens compromises and lens design etc over the years here on DPR. How one thing affects another and why some things are good, and some are not so good.
So, before committing to a denigration of these large Nikon f1.2 primes, you have to remember what Nikon is trying to achieve. They are trying to achieve as close to perfection as they can within the design constraints of physics as well as the design constraints of the Nikon management, marketing department, engineering department and manufacturing department.
As we know, Nikon is also moving towards more video use and thus these new lenses are sometimes designed for minimal focus breathing. There is a great demo of zero breathing with an ARRI lens which is quite incredible, given the overall quality of the lens they are showing. The thing is, the ARRI lenses are almost no compromise, whereas I am sure there are quite a few design compromises that Nikon has to deal with, one being price, but possibly less so is size and weight. Some completely no-compromise lenses could possibly be many times larger, or costly or heavier than what Nikon has served us.
They also discuss cat's eye bokeh - He states you cannot make them round unless you make the lens huge. Again, the compromises made. The Plena.
Well worth the watch if you want to know about the compromises of a lens and how difficult it is to get right.
Bing Videos
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Lance B
https://www.flickr.com/photos/35949907@N02/?
http://www.pbase.com/lance_b
As the guest from ARRI states on this video, every aspect of a lens design may compromise another aspect of that lens. So, you may want to remove CA, but that may require special glass which then may affect focus breathing, or distortion, or edge to edge sharpness or the best bokeh etc. So, you may want superb bokeh but that comes with a tradeoff of lens sharpness, or spherical aberration pf CA etc. Much of this is what AnotherMike has been conveying with regards to lens compromises and lens design etc over the years here on DPR. How one thing affects another and why some things are good, and some are not so good.
So, before committing to a denigration of these large Nikon f1.2 primes, you have to remember what Nikon is trying to achieve. They are trying to achieve as close to perfection as they can within the design constraints of physics as well as the design constraints of the Nikon management, marketing department, engineering department and manufacturing department.
As we know, Nikon is also moving towards more video use and thus these new lenses are sometimes designed for minimal focus breathing. There is a great demo of zero breathing with an ARRI lens which is quite incredible, given the overall quality of the lens they are showing. The thing is, the ARRI lenses are almost no compromise, whereas I am sure there are quite a few design compromises that Nikon has to deal with, one being price, but possibly less so is size and weight. Some completely no-compromise lenses could possibly be many times larger, or costly or heavier than what Nikon has served us.
They also discuss cat's eye bokeh - He states you cannot make them round unless you make the lens huge. Again, the compromises made. The Plena.
Well worth the watch if you want to know about the compromises of a lens and how difficult it is to get right.
Bing Videos
--
Lance B
https://www.flickr.com/photos/35949907@N02/?
http://www.pbase.com/lance_b
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