Re: Camera Focal Length

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

Re: Camera Focal Length

>From my experience directors and DOPs always assumes a lens is on a moving picture film camera in the Super 35 format, not a 35mm stills camera. I know it's very confusing that they almost have the same name, but the film back size is very different. On a 35mm stills camera (Nikon D4/D800 and Cano

Re: Camera Focal Length

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

Re: Camera Focal Length

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

Re: Camera Focal Length

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 close

Re: Camera Focal Length

Oh I forgot to tell you, this addon has a custom option that you can easily edit, but it won't remember your custom settings unless you create a preset file and load it every time. I don't know if you can code, but even if you don't know Python or scripting in general, you can add a new preset qui

Re: Camera Focal Length

NIce thanks, this is what am saying. On 18 April 2013 11:48, Martin wrote: > You need to enable Projection Plane and specify the Film Aperture. > You may need to convert mms to inches because SI only uses inches for Film > Aperture. > > You could also create a custom property like this: > > htt

Re: Camera Focal Length

You need to enable Projection Plane and specify the Film Aperture. You may need to convert mms to inches because SI only uses inches for Film Aperture. You could also create a custom property like this: http://www.softimageblog.com/archives/65 This addon is a little old so you may need to modify

Re: Camera Focal Length

Well there is no confussion in Maya as such, it just seem very odd in soft. It maybe base on real world settings, but for a dum nut like me some times maya seem to have it nailed. On 18 April 2013 11:37, Rob Wuijster wrote: > not really getting it. > > If you set the proper settings for the ba

Re: Camera Focal Length

not really getting it. If you set the proper settings for the backplane, the focal length lens settings are as they are. There's no 'equate in soft' setting for lenses, all 3D apps follow real world mechanics. Rob \/-\/\/ On 18-4-2013 12:26, Ben Beckett wrote: S

Re: Camera Focal Length

Thanks that brill to know, thankyou everyone On 18 April 2013 11:32, Jens Lindgren wrote: > On the Projection Plane tab: > Enable it, set Film Aperture X to 0.9354 (the value of a Arri Alexa > camera), chose whatever lens in mm in the Focal Length field. > > /Jens > > > On Thu, Apr 18, 2013 at

Re: Camera Focal Length

On the Projection Plane tab: Enable it, set Film Aperture X to 0.9354 (the value of a Arri Alexa camera), chose whatever lens in mm in the Focal Length field. /Jens On Thu, Apr 18, 2013 at 12:26 PM, Ben Beckett wrote: > Sorry maybe I have confussed I mean the standard numbers such as 40mm 35mm

Re: Camera Focal Length

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 wrote: > Yeah the Film Aperture should really be in mm in Softimage... Don't get > why it's in inche

Re: Camera Focal Length

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 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 > muc

Re: Camera Focal Length

Hi Ben I may be missing your point here, but afaik focal length is expressed in mm wheereas backplanes ie. the Film Aperture (chip size in digital cameras) is expressed in inches - both as in Soft. We use this all the time and use Red and Alexa data to get it right when matching CGI to real footag

Re: Camera Focal Length

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" wrote: > Hi > > Maya's cameras clearly have a defined Focal Length Tab. > >

Re: Camera Focal Length

Camera Focal Length is always in mm. It's a global standard. Just check the Enable box and set the Film Aperture to something realistic, for example I always use the aperture of the Arri Alexa camera (23.76/25.4 = 0.9354 inches). After that you could just set the lens with the Focal Length.

Camera Focal Length

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