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In Focus Guide to Better Photography
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In Focus Guide to Better Photography.iso
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glossary.cxt
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00398_Field_Split-field filter.txt
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1997-11-05
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Split-field filter - Bi-focal filter, the top half of which consists of plain glass, the lower half being a plus-diopter lens. This arrangement allows a close foreground to be focused at the same time as the background, without great depth of field.