No you dont have to change a thing. Only when you crop the plate.. Then you have to adjust the filmback. You havent cropped it right?
2011/10/11 Ron Ganbar <[email protected]> > But won't I need to change the size of the film back? > > > > Ron Ganbar > email: [email protected] > tel: +44 (0)7968 007 309 [UK] > +972 (0)54 255 9765 [Israel] > url: http://ronganbar.wordpress.com/ > > > > On 11 October 2011 15:16, Remco Consten <[email protected]> wrote: > >> >> I think it doesn't really matter because It keeps the 16:9 aspect... You >> will only lose resolution while tracking.... >> >> Remco Consten >> >> >> 2011/10/11 Ron Ganbar <[email protected]> >> >>> Right, >>> thanks guys. >>> >>> Here's one last twister. >>> I took the 3k footage and shrunk it down to 1280x720. Does this change >>> everything again? >>> >>> >>> >>> Ron Ganbar >>> email: [email protected] >>> tel: +44 (0)7968 007 309 [UK] >>> +972 (0)54 255 9765 [Israel] >>> url: http://ronganbar.wordpress.com/ >>> >>> >>> >>> On 11 October 2011 10:20, Remco Consten <[email protected]> wrote: >>> >>>> Hi all, >>>> >>>> Here you have a handy website I recently found. >>>> >>>> It will give you a filmback for each setting. 3k, 3k ana, 4k etc. for >>>> different camera's >>>> http://arenafilm.hu/alsog/dofcharts/ >>>> >>>> Remco Consten >>>> >>>> >>>> >>>> >>>> >>>> 2011/10/11 Randy Little <[email protected]> >>>> >>>>> I didn't say it was constant, I gave the size for shooting 4k. The >>>>> lens focal length is constant as long as the mount is to spec for the >>>>> given mount. and by constant I mean the focal length of a lens >>>>> doen't change with the amount of image plane being used. So a 25mm is >>>>> a 25mm (sort of) regardless of the resolution you are using on the >>>>> red. The only thing that changes is perceived angle of view. The >>>>> focal length is the distance of the real nodal to the film plan >>>>> always. This changes with focal distance as when you focus the >>>>> rear nodal point moves to adjust convergence on the focal plane (not >>>>> to be confused with focus plane) >>>>> Randy S. Little >>>>> http://www.rslittle.com >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Tue, Oct 11, 2011 at 01:14, Ron Ganbar <[email protected]> wrote: >>>>> > Thanks guys for all your help. >>>>> > But I think I'm confused now. There's conflicting answers in here I >>>>> believe. >>>>> > Randy says the lens is as is with a constant film back size (22.2mm x >>>>> > 12.6mm), while Misho says I should use 0.96 conversion for the lens. >>>>> > Basically it's a Red One shooting 3K with an 18mm lens. >>>>> > >>>>> > Thanks again all. >>>>> > >>>>> > Ron Ganbar >>>>> > email: [email protected] >>>>> > tel: +44 (0)7968 007 309 [UK] >>>>> > +972 (0)54 255 9765 [Israel] >>>>> > url: http://ronganbar.wordpress.com/ >>>>> > >>>>> > >>>>> > On 10 October 2011 21:00, Simon Björk <[email protected]> >>>>> wrote: >>>>> >> >>>>> >> The Red can capture footage in a variety of ways, 4K 16:9, 2K 16:9 >>>>> etc, >>>>> >> and they all crop the sensor in different ways. To find out what >>>>> sensor size >>>>> >> you should use, just multiply the pixels of your image by 0.0054 >>>>> (the size >>>>> >> of the pixels on the sensor in mm). >>>>> >> For example, if the camera captured footage in 4K 16:9 (4096x2304) >>>>> you >>>>> >> could calculate the sensor size like this: >>>>> >> 4096*0.0054 = 22.11mm >>>>> >> 2304*0.0054 = 12.44 mm >>>>> >> /Simon >>>>> >> 2011/10/10 Misho Ristov <[email protected]> >>>>> >>> >>>>> >>> Red One 0.96 in >>>>> >>> Red Epic 1.0885 in >>>>> >>> >>>>> >>> - >>>>> >>> Misho >>>>> >>> >>>>> >>> >>>>> >>> On 2011.10.10 8:27 PM, Ron Ganbar wrote: >>>>> >>> >>>>> >>> Hi all, >>>>> >>> needing to cam track some Red footage. Anybody knows what the film >>>>> back >>>>> >>> is, and if I should change the focal length to compensate for a >>>>> different >>>>> >>> size film back? >>>>> >>> >>>>> >>> Thanks, >>>>> >>> Ron Ganbar >>>>> >>> email: [email protected] >>>>> >>> tel: +44 (0)7968 007 309 [UK] >>>>> >>> +972 (0)54 255 9765 [Israel] >>>>> >>> url: http://ronganbar.wordpress.com/ >>>>> >>> >>>>> >>> >>>>> >>> _______________________________________________ >>>>> >>> Nuke-users mailing list >>>>> >>> [email protected], >>>>> http://forums.thefoundry.co.uk/ >>>>> >>> >>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>> >>> >>>>> >>> -- >>>>> >>> ___________________________ >>>>> >>> Misho Ristov >>>>> >>> VFX Supervisor >>>>> >>> FX3X >>>>> >>> www.fx3x.com >>>>> >>> Jane Sandanski 108/28 >>>>> >>> 1000 Skopje, Macedonia >>>>> >>> cell +38970385680 >>>>> >>> office +38925511985 >>>>> >>> fax +38925511902 >>>>> >>> >>>>> >>> _______________________________________________ >>>>> >>> Nuke-users mailing list >>>>> >>> [email protected], >>>>> http://forums.thefoundry.co.uk/ >>>>> >>> >>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> _______________________________________________ >>>>> >> Nuke-users mailing list >>>>> >> [email protected], >>>>> http://forums.thefoundry.co.uk/ >>>>> >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>> > >>>>> > >>>>> > _______________________________________________ >>>>> > Nuke-users mailing list >>>>> > [email protected], http://forums.thefoundry.co.uk/ >>>>> > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>> > >>>>> _______________________________________________ >>>>> Nuke-users mailing list >>>>> [email protected], http://forums.thefoundry.co.uk/ >>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Nuke-users mailing list >>>> [email protected], http://forums.thefoundry.co.uk/ >>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>> >>> >>> >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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