Velocity Reviews > How to use knowledge of hyperfocal distance...?

# How to use knowledge of hyperfocal distance...?

kasterborus@yahoo.com
Guest
Posts: n/a

 10-26-2005
when taking landscapes that require as much in focus as possible.

However how do you actually apply it in the field? (pun intended)

I have read that you "focus on infinity, then locate the leading edge
of whatever is in focus, and focus on that". I'm not sure that my eyes
would be good enough to see where the leading edge of anything was in a
wide scene.

Next to taking one of those laser guided "tape" measures on a shoot how
can I practically apply knowledge of a hyperfocal distance?

Thanks,
Steve

Nikon User
Guest
Posts: n/a

 10-26-2005
In article <(E-Mail Removed). com>,
http://www.velocityreviews.com/forums/(E-Mail Removed) wrote:

> when taking landscapes that require as much in focus as possible.
>
> However how do you actually apply it in the field? (pun intended)
>
> I have read that you "focus on infinity, then locate the leading edge
> of whatever is in focus, and focus on that". I'm not sure that my
> eyes would be good enough to see where the leading edge of anything
> was in a wide scene.

The way I've always done it is to first determine the f/stop I'll be
using, and then set the infinity marker on the focus ring to that
f/stop. That will set the focus to the hyperfocal distance.

Roy
Guest
Posts: n/a

 10-26-2005

<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
> when taking landscapes that require as much in focus as possible.
>
> However how do you actually apply it in the field? (pun intended)
>
> I have read that you "focus on infinity, then locate the leading edge
> of whatever is in focus, and focus on that". I'm not sure that my eyes
> would be good enough to see where the leading edge of anything was in a
> wide scene.
>
> Next to taking one of those laser guided "tape" measures on a shoot how
> can I practically apply knowledge of a hyperfocal distance?
>
> Thanks,
> Steve
>

Hi there.

That is what I always did using my film Cameras and AI lenses, but neither
of my Auto Focus Nikors have DoF scales on the Lens, to which you can set
the Infinity mark.

So it just becomes a matter of Auto Focussing on a middle distance object
and hoping for the best, sort of.

Roy G

Bob
Guest
Posts: n/a

 10-27-2005
On 26 Oct 2005 07:33:07 -0700, (E-Mail Removed) wrote:

>when taking landscapes that require as much in focus as possible.
>
>However how do you actually apply it in the field? (pun intended)
>
>I have read that you "focus on infinity, then locate the leading edge
>of whatever is in focus, and focus on that". I'm not sure that my eyes
>would be good enough to see where the leading edge of anything was in a
>wide scene.
>
>Next to taking one of those laser guided "tape" measures on a shoot how
>can I practically apply knowledge of a hyperfocal distance?
>
>Thanks,
>Steve

There are programs available that let you make a chart for your lens, and you

http://dfleming.ameranet.com/

Neil Ellwood
Guest
Posts: n/a

 10-27-2005
On Wed, 26 Oct 2005 23:15:31 +0000, Roy wrote:

>
> <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) ups.com...
>> when taking landscapes that require as much in focus as possible.
>>
>> However how do you actually apply it in the field? (pun intended)
>>
>> I have read that you "focus on infinity, then locate the leading edge
>> of whatever is in focus, and focus on that". I'm not sure that my eyes
>> would be good enough to see where the leading edge of anything was in a
>> wide scene.
>>
>> Next to taking one of those laser guided "tape" measures on a shoot how
>> can I practically apply knowledge of a hyperfocal distance?
>>
>> Thanks,
>> Steve
>>

> Hi there.
>
> That is what I always did using my film Cameras and AI lenses, but neither
> of my Auto Focus Nikors have DoF scales on the Lens, to which you can set
> the Infinity mark.
>
> So it just becomes a matter of Auto Focussing on a middle distance object
> and hoping for the best, sort of.
>
> Roy G

Have you tried the dof button and looking at the image through the
view finder?

--
Neil
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Lorem Ipsum
Guest
Posts: n/a

 10-27-2005

"Nikon User" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> In article <(E-Mail Removed). com>,
> (E-Mail Removed) wrote:
>
>> when taking landscapes that require as much in focus as possible.
>>
>> However how do you actually apply it in the field? (pun intended)
>>
>> I have read that you "focus on infinity, then locate the leading edge
>> of whatever is in focus, and focus on that". I'm not sure that my
>> eyes would be good enough to see where the leading edge of anything
>> was in a wide scene.

>
> The way I've always done it is to first determine the f/stop I'll be
> using, and then set the infinity marker on the focus ring to that
> f/stop. That will set the focus to the hyperfocal distance.

Lorem Ipsum
Guest
Posts: n/a

 10-27-2005
In article <(E-Mail Removed). com>,
> (E-Mail Removed) wrote:
>
>when taking landscapes that require as much in focus as possible.
>
>However how do you actually apply it in the field? (pun intended)

You will get some good answers here. Permit me to add: keep in mind that
hyperfocal figures (the range given for a specific F-Stop) depends upon what
is called the acceptable Circle of Confusion (CoC). Think of it as the
'blurr tolerance'. The larger your print, the more strident or critical one
has to be for the figures given. Large prints from a small sensor can look
horrible when the hyperfocal figure (range) given presumes a large CoC, in
other words, a CoC for small print.

Even the top film-camera makers, for example Hasselblad, says not to use the
hyperfocal scales on their lenses when the work is to be printed very large;
but to use a more conservative range instead.

Lorem Ipsum
Guest
Posts: n/a

 10-27-2005
"Roy" <(E-Mail Removed)> wrote in message
news:n6U7f.10176\$(E-Mail Removed)...

> That is what I always did using my film Cameras and AI lenses, but neither
> of my Auto Focus Nikors have DoF scales on the Lens, to which you can set
> the Infinity mark.
>
> So it just becomes a matter of Auto Focussing on a middle distance object
> and hoping for the best, sort of.

That's a fair rule-of-thumb. More accurately, the acceptable depth-of-focus
is more like 1/3 in front of the focused image, and 2/3 to the rear.

John Bean
Guest
Posts: n/a

 10-27-2005
On Thu, 27 Oct 2005 11:07:45 -0500, "Lorem Ipsum"
<(E-Mail Removed)> wrote:

>"Roy" <(E-Mail Removed)> wrote in message
>news:n6U7f.10176\$(E-Mail Removed)...
>
>> That is what I always did using my film Cameras and AI lenses, but neither
>> of my Auto Focus Nikors have DoF scales on the Lens, to which you can set
>> the Infinity mark.
>>
>> So it just becomes a matter of Auto Focussing on a middle distance object
>> and hoping for the best, sort of.

>
>That's a fair rule-of-thumb. More accurately, the acceptable depth-of-focus
>is more like 1/3 in front of the focused image, and 2/3 to the rear.
>

That's ok except for hyperfocal focusing (which is what the
constitutes a third of infinity...

--
John Bean

David J Taylor
Guest
Posts: n/a

 10-28-2005
John Bean wrote:
[]
> That's ok except for hyperfocal focusing (which is what the
> OP asked about) - it's a bit hard to estimate what
> constitutes a third of infinity...

Not when expressed as 1 / distance, it isn't!

David