I haven't.
I get what you're saying. That makes sense.
Thanks everyone!
I should really get my head around all this projection / field of view
stuff. Anybody has a good resource?
Cheers,
Ron Ganbar
email: ron...@gmail.com
tel: +44 (0)7968 007 309 [UK]
+972 (0)54 255 9765 [Israel]
url: http://ronganbar.wordpress.com/
On 11 October 2011 15:27, Remco Consten <rcons...@gmail.com> wrote:
> 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 <ron...@gmail.com>
>
>> But won't I need to change the size of the film back?
>>
>>
>>
>> Ron Ganbar
>> email: ron...@gmail.com
>> 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 <rcons...@gmail.com> 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 <ron...@gmail.com>
>>>
>>>> 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: ron...@gmail.com
>>>> 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 <rcons...@gmail.com> 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 <randyslit...@gmail.com>
>>>>>
>>>>>> 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 <ron...@gmail.com> 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: ron...@gmail.com
>>>>>> > 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 <si...@stillerstudios.se>
>>>>>> 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 <mi...@fx3x.com>
>>>>>> >>>
>>>>>> >>> 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: ron...@gmail.com
>>>>>> >>> tel: +44 (0)7968 007 309 [UK]
>>>>>> >>> +972 (0)54 255 9765 [Israel]
>>>>>> >>> url: http://ronganbar.wordpress.com/
>>>>>> >>>
>>>>>> >>>
>>>>>> >>> _______________________________________________
>>>>>> >>> Nuke-users mailing list
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>>>>>> >>>
>>>>>> >>> --
>>>>>> >>> ___________________________
>>>>>> >>> Misho Ristov
>>>>>> >>> VFX Supervisor
>>>>>> >>> FX3X
>>>>>> >>> www.fx3x.com
>>>>>> >>> Jane Sandanski 108/28
>>>>>> >>> 1000 Skopje, Macedonia
>>>>>> >>> cell +38970385680
>>>>>> >>> office +38925511985
>>>>>> >>> fax +38925511902
>>>>>> >>>
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