Focal Length of Lens  

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trungthu
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Focal Length of Lens

by trungthu » Sun Oct 08, 2006 10:08 am

Please show me where to choose the focal length of lens, or it is automaticaly chosen, or in default mode ?
Does it relate to curving the straight line when stitching ? Thanks.

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AlexandreJ
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by AlexandreJ » Sat Oct 21, 2006 1:35 pm

Focal length is calculated using exif value. If not one is available, a default value of 50mm in hard coded.
Straight line not being straight when stitching can come from many cause :
- projection (planar does not deform, other projection does )
- non centered stitching
- misplaced control point (some thread are active on this subject)
You have to be more accurate and perhaps show us something to illustrate your issue


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