I wrote something about fov in my blog that may help to understand the FOV and Aperture relation. It is in japanese but the graphics are enough to understand the basic relation.
http://myara.blog.fc2.com/blog-entry-167.html I'm not an expert so if there is something wrong, please let me know On Fri, Apr 19, 2013 at 2:12 PM, Chris Covelli <ch...@polygonpusherinc.com>wrote: > Oh nvm, I just realized they are directly linked together, changing one > also changes the other. Makes sense now. > > Chris Covelli > http://www.polygonpusherinc.com/ > http://exocortex.com/products/species > TurboSquid > Models<http://www.turbosquid.com/Search/Artists/Polygon-Pusher?referral=Polygon-Pusher> > > > On Fri, Apr 19, 2013 at 1:04 AM, Chris Covelli <ch...@polygonpusherinc.com > > wrote: > >> I suppose this would be a good place to ask......something Ive always >> wondered. I understand the controls on the Projection Plane tab well >> enough, but on the Primitive tab, under the Pict and Pixel Ratio sliders >> theres one called Feild of View, which seems adjust the lens distortion >> similar to the focal length, but on a 1-180 degree scale. Whats this one >> for and how is it supposed to be used in conjunction with the focal length >> controls? >> >> Thanks! >> >> Chris Covelli >> http://www.polygonpusherinc.com/ >> http://exocortex.com/products/species >> TurboSquid >> Models<http://www.turbosquid.com/Search/Artists/Polygon-Pusher?referral=Polygon-Pusher> >> >> >> On Thu, Apr 18, 2013 at 7:45 PM, Raffaele Fragapane < >> raffsxsil...@googlemail.com> wrote: >> >>> The director might need to read into the fundamentals of his job. >>> In first place the focal length doesn't mean much without knowing how >>> big the film back is and where it is. >>> >>> 40mm on a m4/3 (or any small sensor) is a fairly long lens, like shallow >>> depth portrait long. On an Epic it's actually closer to a 37mm on a 35's >>> film back, and on a 35's film back it's a natural lens. >>> >>> Assuming that, like many, he assumes the 35mm film standard (not to be >>> confused with a 35mm focal length), you should set your film back to a 35mm >>> full frame sensor settings, and then whatever focal length will match his >>> expectations. >>> If he refers to lenses he shot plates with, he needs to let you know >>> what they were shot with. >>> >>> Shooting with a GH3, a m4/3 black magic, a 5D MIII, a Phantom or an Epic >>> all respond from wildly to slightly differently to focal lengths. >>> >>> The settings in Soft make perfect sense, and the ones in Maya don't >>> differ really, just some of the camera settings are actually stashed away >>> or slightly odd. >>> It's time to study the basics of photography/camera work if you think >>> the ones in Soft don't make sense. The only difference is Maya might have >>> defaults and things hidden away that for the one sequence happened to be >>> lucky, but the two apps don't differ. >>> >>> >>> On Thu, Apr 18, 2013 at 8:26 PM, Ben Beckett <nebbeck...@gmail.com>wrote: >>> >>>> Sorry maybe I have confussed I mean the standard numbers such as 40mm >>>> 35mm 22mm lenz, When he said lets try a 40mm lenz how does that equate in >>>> soft >>>> >>>> Thanks >>>> >>>> >>>> On 18 April 2013 11:10, Jens Lindgren <jens.lindgren....@gmail.com>wrote: >>>> >>>>> Yeah the Film Aperture should really be in mm in Softimage... Don't >>>>> get why it's in inches. >>>>> >>>>> /Jens >>>>> >>>>> >>>>> On Thu, Apr 18, 2013 at 12:08 PM, Leonard Koch < >>>>> leonardkoch...@gmail.com> wrote: >>>>> >>>>>> I would think because mm is the standard in focal lengths. >>>>>> Lenses' focallengths and also sensor sizes - which also play a role >>>>>> in how much the camera sees - are always given in mm. >>>>>> On Apr 18, 2013 11:44 AM, "Ben Beckett" <nebbeck...@gmail.com> wrote: >>>>>> >>>>>>> Hi >>>>>>> >>>>>>> Maya's cameras clearly have a defined Focal Length Tab. >>>>>>> >>>>>>> Where in Soft is this because sitting with the Driector yesterday >>>>>>> soft really did it self no favours, I was telling him how it a great >>>>>>> app is >>>>>>> but he now not having any of it. >>>>>>> >>>>>>> On the camera prop's menu there is the Focal Length but its in (mm) >>>>>>> , can it be switch, and why mm's. >>>>>>> >>>>>>> Thanks >>>>>>> Ben >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>> >>>>> >>>>> -- >>>>> Jens Lindgren >>>>> -------------------------- >>>>> Lead Technical Director >>>>> Magoo 3D Studios <http://www.magoo3dstudios.com/> >>>>> >>>> >>>> >>> >>> >>> -- >>> Our users will know fear and cower before our software! Ship it! Ship it >>> and let them flee like the dogs they are! >>> >> >> >
