Eyelight Plays with Depth of Field - Part 7: DOF Based on View Size

This comparison uses the same aperture (f/11) and same subject/view size (16.78”) with four different focal lengths.

• The red line represents the width of the subject/view.
• Positions a, b, c and d represent camera positions using the four focal lengths in the table.
• Black lines represent angle of view for each focal length.
• Distance for each calculated using cad software.
• Depth of field info calculated using Photo Caddie.

Attachment 98534

Position	Focal Length	Angle of View	Distance	Depth of Field	Front DOF	Back DOF
a	200mm	8˚	120”	3.87	1.90	1.96
b	55mm	28˚ 50’	32.64”	3.79	1.79	2.01
C	40mm	38˚ 50’	23.81”	3.83	1.76	2.07
D	18mm	76˚	10.74”	3.95	1.62	2.32

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