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Calculations for s16mm blow-up to 35mm


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#1 Pax Martins

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Posted 05 February 2008 - 06:06 AM

Hi Guys,

My maths :blink: calculations are not coming together for me in ascertaining the correct shutter angle for a s16mm blow-up to 35mm.

Can anyone please provide the formula?

Many Thanks in advance
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#2 John Holland

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Posted 05 February 2008 - 11:59 AM

There isnt one as far as know !!!
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#3 David Mullen ASC

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Posted 05 February 2008 - 12:16 PM

Shutter angle used doesn't affect the blow-up process, only the motion artifacts, as it does even if you're not blowing it up.

You may be confused with shooting DV for transferring to film, where certain long shutter times in interlaced-scan photography affect resolution.
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#4 Jonathan Bowerbank

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Posted 05 February 2008 - 12:46 PM

I'll 3rd that

Just out of curiosity...do you have any examples of the math formulas you tried in vain? ;)
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