Indy Photo Coach 12:38am, 12 January 2010
October gave a party;

The amount of a scene in focus, both in front of and behind a subject, is controlled by the aperture. You have a lesser amount in focus in front of the subject and a greater amount in back of the subject (about a 1/3 – 2/3 ratio). To control focus, use:

* A large aperture (small number) for a minimum amount of focus
* A small aperture (large number) for a maximum amount.

This is known as selective focusing and is used as a way to draw your viewer to your subject; the eyes go to what is in focus.


1) Select a subject.
2) Set your camera to f4 (or lower) and take a picture.
3) Now set your camera to f16 and take the same picture again.
4) Compare how the amount of the scene in focus differs between the two pictures.
Serge Melki PRO Posted 8 years ago. Edited by Serge Melki (member) 8 years ago
was doing exactly that a year ago. ;-)

this is using the 50mm, both in Aperture mode. One is F2.5 and the other is F22 can you tell which one is which?
IPC # 76
lynzfotos 8 years ago
Nice example Serge!
moostang78 Posted 8 years ago. Edited by moostang78 (member) 8 years ago

I didn't follow the assignment....but this is selective focusing. (As Serge pointed out - it's not grammatically correct)
encouraging scale [deleted] 8 years ago
Muscatatuck NWR
Geoffrey Kroll PRO 8 years ago
Slight levels adjustment. No sharpening (i got lazy). Using Nikon 28mm f2.8 lens.

DOF comparison
Stewart Imagery 8 years ago
Lola stares at her human
Pearson,KyleD 8 years ago
photo_salinas 8 years ago
Butler vs Central Connecticut 10
photo_salinas 8 years ago
UIndy vs Wayne State 1
nathanrhoades PRO Posted 8 years ago. Edited by nathanrhoades (member) 8 years ago
IMG_7182 by nathanrhoades

Thought the net I was shooting through and the one behind the court created some interesting background effects....
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