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farhaad
11-01-2006, 11:12 PM
:eek: i have some shot taken by sony- hdv camera (zh1)
resolotion is weardo 1440*1080 (16:9)
boujou can not recognise it
beside that i do not know where can i discover exact number of FOV

visualboo
11-02-2006, 01:35 AM
Yeah 1080 HDV has a pixel ratio of 1.333. If the non-square pixels are whats screwing you up just drop it into After Effects or Premiere and export it out as 1920x1080 with a square pixel ratio.

The FOV question isn't as easy to answer because it depends on how you shot the footage because the FOV changes with the focal length or zoom. There are formula's to figure it out if you took enough notes when shooting.

Hope that helped a little.

farhaad
11-02-2006, 10:12 AM
thenks realy much about the pixel acpect ratio
but can you help me about those fov formulas??

thanks


*** by the way i wwork with sofimage.xsi 5.0
thats why i left my q in this forom
is there any special tricks between boujou and xsi..
thanks again....

bravmm
11-02-2006, 03:14 PM
it's a inverse calculation to get to the square ratio, and then multiply with the width of the image:
so here it would be 1440 / (1/1.33) = 1920 to get to square pixels.

Hope this helps,

rob

P.S. There are some good wikipedia pages on formats and aspect ratio's:
http://en.wikipedia.org/wiki/Aspect_ratio_(image) for one ;-)

visualboo
11-02-2006, 03:41 PM
I think he meant the FOV calc's.

I don't know how to do them off the top of my head but if you do a quick search you're sure to find a LOT of info on that.

Try this:
http://www.google.com/search?q=FOV+calculations&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official

bravmm
11-02-2006, 03:52 PM
Ah yes... replied to soon.
But wikipedia to the rescue :twisted::
http://en.wikipedia.org/wiki/Angle_of_view

and a nice link with calculator, also in the google search result:
http://www.tawbaware.com/maxlyons/calc.htm

rob

farhaad
11-04-2006, 12:03 AM
thanks guies you 've been realy helpfull..
:buttrock:

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