Depth of Field

The depth of field refers to the nearest and farthest points in your photograph that are in focus in your shot. A lens can only focus on one single distance fully, but with a wide depth of field, areas both closer and further from that one point are relatively in focus as well. Stopping down to a smaller aperture increases the depth of field, and will result in more of the photograph being in focus.

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Vintage HANIMEX 35SL SLR  35mm camera w/HANIMAR AUTO S 35mm f2.8 lens   picture
Vintage HANIMEX 35SL SLR 35mm camera w/HANIMAR AUTO S 35mm f2.8 lens
hanimar auto telephoto f3.5 135mm with vivitar automatic tele converter picture
hanimar auto telephoto f3.5 135mm with vivitar automatic tele converter
Vintage Hanimar Fully Automatic Telephoto Lens 3.5 200mm for Nikon  C2 picture
Vintage Hanimar Fully Automatic Telephoto Lens 3.5 200mm for Nikon C2
Hanimar Telephoto Lens #20515 F/3.5 135mm Vintage *no lens caps picture
Hanimar Telephoto Lens #20515 F/3.5 135mm Vintage *no lens caps
HANIMAR AUTO
HANIMAR AUTO "S" f=135mm 1:2.8 Lens