Controlling depth of field
Aug 10, 2011 10:55:32 #
Hi,
I would like to know more about how to control depth of field,or lack of with an advanced point and shoot.I'd like to eliminate distracting backgrounds.Canon s95. Thanks.
Bruce
I would like to know more about how to control depth of field,or lack of with an advanced point and shoot.I'd like to eliminate distracting backgrounds.Canon s95. Thanks.
Bruce
Aug 10, 2011 17:42:01 #
Applies to all cameras:
DOF (depth of field) is directly related to the size of the opening through which light passes, also known as the aperture. Aperture is measured in F-stops or F-numbers. The main thing to know is that a large hole has a small number. A f 1.8 is pretty wide open, a f 22 is pinpoint. Now remember that the depth of field is small with a small f number and large with a f large number. You will need to learn how to control the size of the aperture for your camera then you will be ready to control DOF!
DOF (depth of field) is directly related to the size of the opening through which light passes, also known as the aperture. Aperture is measured in F-stops or F-numbers. The main thing to know is that a large hole has a small number. A f 1.8 is pretty wide open, a f 22 is pinpoint. Now remember that the depth of field is small with a small f number and large with a f large number. You will need to learn how to control the size of the aperture for your camera then you will be ready to control DOF!
Aug 10, 2011 18:05:00 #
Thanks for your reply but I am only working with an aperature range from f 2.0 to f8 with 2.0 being at 28mm. Do I just need to distance my subject further from background to blur or semi-blur backgrounds? I understand aperature to shutter relationship.
Aug 10, 2011 18:45:38 #
jdtx
Loc: SA, Tx.
the further the background is from your subject the more blurry it will be, especially with the 2.8 f stop
Aug 10, 2011 19:51:33 #
Aug 10, 2011 21:57:05 #
RonaldLewis
Loc: Chicago, Illinois
Depth of field is controlled by 3 things. Aperture, the smaller the aperture, the more depth of field. The distance to the subject and the focal length of the lens. If you can set those 3 things on the camera you can control the depth of field. Small apertures are like F16, 22, 32 etc. The farther you are from the subject, the more depth of field you have. You have more depth of field with point and shoot cameras because of their small sensors
Aug 10, 2011 23:02:51 #
Thank you for all replies, I'm still experimenting and learning the settings and controls instead of going back to basic manual exposure as I did with my manual film camera. Very helpful.
Mar 29, 2021 17:27:04 #
Ugly Hedgehog Newsletter wrote:
Hi,
I would like to know more about how to control depth of field,or lack of with an advanced point and shoot.I'd like to eliminate distracting backgrounds.Canon s95. Thanks.
Bruce
I would like to know more about how to control depth of field,or lack of with an advanced point and shoot.I'd like to eliminate distracting backgrounds.Canon s95. Thanks.
Bruce
Without seeing an example, the closer you can get to the subject and the greater distance between the subject and the background and the longer the focal length you use is, the less in-focus the background will be. Of course you should try to use the lowest ISO so that you can take advantage of the F2-F4.9 maximum aperture.
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