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Canon XL H Series HDV Camcorders
Canon XL H1S (with SDI), Canon XL H1A (without SDI). Also XL H1.


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Old July 2nd, 2009, 05:11 PM   #1
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translate zoom numbers to focal length

has anyone tried to translate the numeric zoom values into estimations of focal length? Obviously zero is 5.4 and 100 is 108.

- but does that mean 50 on the scale is approx 55mm? Is the progression linear?

Last edited by Doug Bennett; July 2nd, 2009 at 06:12 PM.
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Old July 4th, 2009, 03:28 PM   #2
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There are some answers if you search the forum.

http://www.dvinfo.net/conf/canon-xh-...-length-2.html
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Old July 5th, 2009, 04:24 PM   #3
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For what it's worth, the progression is curvilinear (not rectilinear).
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Old July 6th, 2009, 09:20 AM   #4
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many thanks - EXIF it is
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