[Sidefx-houdini-list] camera aperture

Thomas Bolt Thomas.Bolt at framestore.com
Thu Apr 9 12:33:43 EDT 2009


As i remember boujou will automatically calculate film back when you 
load a sequence into it

Sai wrote:
> I too would like to know more about it.I just bought a canon HV30 and
> 35mm adapter
> and wondering how can I calculate the value to something Houdini can understand.
>
> On Thu, Apr 9, 2009 at 12:04 PM, Ben Frost <benfrost3d at gmail.com> wrote:
>   
>> I think I'm right in saying that the aperture in houdini is the film-back..
>> or sensor size..
>> This is constant and can be looked up in the camera manual or online.. be
>> wary of the way that the measurements have been taken thoght. some are
>> diaginal and others are worked out by x & y..
>>
>>
>>
>> 2009/4/9 P. Alex Lim <list at poh-yee.com>
>>
>>     
>>> Hi List!
>>>
>>> I guess it never occurred to me to wonder about this until a few days
>>> ago... What kind of information will one need at hand in order to get
>>> a much more accurate camera aperture? I've been told that having a
>>> much more accurate camera aperture would yield a much better tracking
>>> result, so I wondered if there's any possible way of knowing the
>>> aperture without relying on the tracking software to guess?
>>>
>>> Thanks so much! :)
>>> Alex
>>>
>>>
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