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You are here: Home » Hyperfocal Distance in Digital Photography

By Abhishek Ghosh February 23, 2013 10:53 pm Updated on August 30, 2014

Hyperfocal Distance in Digital Photography

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Hyperfocal Distance in Digital Photography refers to a distance beyond which all objects in front of the lens can be made into an acceptable focus. It is the sharpness of focus excluding any issue of movement. Previously we said about Hyperfocal Distance in our article on Deep Focus in Digital Photography.

 

Basics About Hyperfocal Distance in Digital Photography

 

Hyperfocal Distance can be expressed in two ways :

  • The minimum distance at which the subject is in focus, if we focus on infinity.
  • Distance focus made on the hyperfocal provides a clear picture of the half that distance to infinity.

 

The hyperfocal distance is used by photographers to get the maximum depth of field maximum ( in landscape photography, for example) or to simplify the parameter focus when taking a picture, allowing to focus on other aspects of the scene. Determining the hyperfocal distance depends crucially on the perceived sharpness of an image expressed in its formulation by the circle of confusion. Theoretical calculation takes no account of the aberrations of the lens or the resolution of the sensitive surface or visual acuity of the observer of the final image, the latter two having no influence on the point of design.

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Calculation Hyperfocal Distance

 

The hyperfocal distance (H) is calculated with three parameters according to the formula :

 

H = {f^2  / Nc} + f

 

Where,

H = hyperfocal distance

f = is the focal length in mm.

N= is the opening of the diaphragm

c= is the value of the circle of confusion in mm

Hyperfocal Distance in Digital Photography

 

Or, if we use the Using the diameter of the aperture :

 

d =  f/N    —- (i)

H = (f/d) / c     — (ii) (d is derived from first equation and notations are same as above plus d is the diameter of the aperture in meters)

 

The interest here is to have the greatest depth of field, not knowing the exact distance to the subject. A 35mm SLR equipped with a f8 lens, the hyperfocal is about 5 m and dividing by 2, the minimum distance is about 2.5 m. The interest of the hyperfocal is for the photographer who uses the manual focus.

Tagged With determining the hyperfocal gistance , hyperfocal mesafe örnek

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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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About This Article

Cite this article as: Abhishek Ghosh, "Hyperfocal Distance in Digital Photography," in The Customize Windows, February 23, 2013, June 29, 2022, https://thecustomizewindows.com/2013/02/hyperfocal-distance-in-digital-photography/.

Source:The Customize Windows, JiMA.in

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