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July 2nd, 2009, 04:11 PM
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#1 |
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Major Player
Join Date: Oct 2004
Location: NYC
Posts: 260
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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 05:12 PM. |
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July 4th, 2009, 02:28 PM
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#2 |
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Regular Crew
Join Date: Sep 2005
Location: Poulsbo, WA
Posts: 104
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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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July 5th, 2009, 03:24 PM
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#3 |
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Obstreperous Rex
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For what it's worth, the progression is curvilinear (not rectilinear).
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July 6th, 2009, 08:20 AM
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#4 |
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Major Player
Join Date: Oct 2004
Location: NYC
Posts: 260
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many thanks - EXIF it is
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