what does focal length means?


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cheekiang

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Jan 15, 2007
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#1
hi,

what does focal length means?

how is affect the depth of field?

chee kiang
canon ixus 850
canon eros 400d
 

Artosoft

Senior Member
Aug 31, 2005
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Tanjong Katong
#3
hi,

what does focal length means?

how is affect the depth of field?

chee kiang
canon ixus 850
canon eros 400d
Focal length is a focus distance of the lens when the lens' distance set to infinity.

In general, the longer focal length, the shallow Depth of Field.

Regards,
Arto.
 

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