hyperfocal distance
Feb 1, 2013 11:20:05 #
Is there any way for a mathematically-challenged aspiring photographer to understand this?
Feb 1, 2013 11:24:36 #
Feb 1, 2013 11:25:47 #
Been there. Maybe I just have to keep going back until something clicks?
Feb 1, 2013 11:58:32 #
The hyperfocal distance is the distance at which the lens is focussed when, for any given aperture, the far limit of the depth of field is positioned at infinity.
Feb 1, 2013 11:58:45 #
This chart is more visual and perhaps more understandable for hyperfocal distance.
http://www.dofmaster.com/charts.html
http://www.dofmaster.com/charts.html
Feb 2, 2013 07:59:11 #
nat wrote:
Is there any way for a mathematically-challenged aspiring photographer to understand this?
how about a smart phone app, I've got one , free at Google Play, Bob.
Feb 2, 2013 08:34:32 #
bobmcculloch wrote:
how about a smart phone app, I've got one , free at Google Play, Bob.
nat wrote:
Is there any way for a mathematically-challenged aspiring photographer to understand this?
how about a smart phone app, I've got one , free at Google Play, Bob.
I'm so technically challenged, I don't qualify for a smart phone.
Feb 2, 2013 08:57:58 #
nat wrote:
I'm so technically challenged, I don't qualify for a smart phone.
bobmcculloch wrote:
how about a smart phone app, I've got one , free at Google Play, Bob.
nat wrote:
Is there any way for a mathematically-challenged aspiring photographer to understand this?
how about a smart phone app, I've got one , free at Google Play, Bob.
I'm so technically challenged, I don't qualify for a smart phone.
Now thats funny...I have a dumb phone and I keep it turned off 90% of the time. this way I don't have to tax my limited brain with something else I don't need to know...
Feb 2, 2013 09:09:40 #
Mag3duces wrote:
Now thats funny...I have a dumb phone and I keep it turned off 90% of the time. this way I don't have to tax my limited brain with something else I don't need to know...
nat wrote:
I'm so technically challenged, I don't qualify for a smart phone.
bobmcculloch wrote:
how about a smart phone app, I've got one , free at Google Play, Bob.
nat wrote:
Is there any way for a mathematically-challenged aspiring photographer to understand this?
how about a smart phone app, I've got one , free at Google Play, Bob.
I'm so technically challenged, I don't qualify for a smart phone.
Now thats funny...I have a dumb phone and I keep it turned off 90% of the time. this way I don't have to tax my limited brain with something else I don't need to know...
I totally agree. Caller ID is also my best friend, after my 2 dogs.
Feb 2, 2013 13:28:33 #
nat wrote:
Is there any way for a mathematically-challenged aspiring photographer to understand this?
I'm not sure it's worth worrying over too much with SLR type cameras. Unless you are using large format, the depth of field is extremely limited unless you are using very wide angle lenses. And by stopping down much past f/11, most lenses start going soft due to diffraction, long before extreme depth of field is realized. One very expensive partial solution is by using tilt/shift lenses. Probably the best practice with SLRs is to use f/8 or f/11 and hope for the best.
Feb 2, 2013 14:15:01 #
jackm1943 wrote:
quote=nat Is there any way for a mathematically-c... (show quote)
Thanks, Jackm....food for thought. I tend to stop down past f/11.a lot.
Feb 2, 2013 16:38:15 #
iPhone app named "Simple DoF" is a great little app with a very easy to interpret graphical representation of DOF, near and far focal distance, and Hyperfocal distance based on Camera, lens in mm, and focus distance in ft-in. Try it and you'll like. Worth the nominal cost!
Feb 11, 2013 16:26:18 #
GrahamS wrote:
The hyperfocal distance is the distance at which the lens is focussed when, for any given aperture, the far limit of the depth of field is positioned at infinity.
I'm still confused. Is it the same as DOF?
Feb 11, 2013 16:57:40 #
Try this:
Hyperfocal distance: That distance of lens focus where everything from 1/2 that distance to infinity is in (acceptable) focus.
Depth of Field: (When the lens is focused at the hyperfocal distance) From 1/2 the distance from the focal plane to infinity.
When the focus point is NOT at the hyperfocal distance, the depth of field is not as defined as above. Thus, I use Simple DoF to know near plane of DOF, far plane of DOF, DOF in ft-in or m-cm. since none of the newer lenses have distance scales that are useable.
HTH,
Bob
Hyperfocal distance: That distance of lens focus where everything from 1/2 that distance to infinity is in (acceptable) focus.
Depth of Field: (When the lens is focused at the hyperfocal distance) From 1/2 the distance from the focal plane to infinity.
When the focus point is NOT at the hyperfocal distance, the depth of field is not as defined as above. Thus, I use Simple DoF to know near plane of DOF, far plane of DOF, DOF in ft-in or m-cm. since none of the newer lenses have distance scales that are useable.
HTH,
Bob
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