Hyperfocal distance (focusing)

It is currently Fri Feb 22, 2019 9:28 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Hyperfocal distance (focusing)
Unread postPosted: Wed Nov 30, 2011 10:55 am 
Offline
Site Admin
Site Admin
User avatar

Joined: Wed Jun 08, 2011 11:12 am
Posts: 2218
Location: New York
Using the hyperfocal distance to focus your lens for the appropriate aperture will result in the maximum depth of field for your shot. It's often used in street and landscape shooting where either fast action (frame, shoot!) or maximum sharpness and depth is necessary.

Most lenses have a depth of field scale on them for some (or all) apertures. They're generally better on wide angle lenses because the depth of field is greater, which allows a better spacing on the scale and more apertures to be shown. In any event, for reasons I won't get into, let's call them "optimistic" by a stop or two (at least when shooting digital or fine grain films and/or for large enlargements where sharpness is more critical).

So let's say you're shooting at f/8 and you want to maximize the depth of field on your M9 (or film camera) and you've got a 35mm lens. The hyperfocal distance for these conditions would be 16.9' (5.14m), which would render everything from 8.5' (2.57m) to infinity in focus. This is the calculated hyperfocal distance created via DOFMaster tool (very handy!). If you look at your lens scale, you'll see how this lines up and likely differs from what the scale says.

In easier terms and using the scale you've got on-hand - you're shooting at f/8 - but you should use the scales for f/5.6 or even f/4 to give you an extra buffer. Set your focus so that infinity lines up with the right (far) side of the scale for f/5.6 (or f/4).

Without that buffer zone you could end up with infinity or near objects that aren't quite as sharp as you expected them to be. This can be a real downer if you're shooting say, landscapes - only to find out later that they're all blurry in the distance.

_________________
Image
ImageImageImage
:{L :{L :{L :{L :{L
•LitPixel


Top
 Profile  
 
 Post subject: Re: Hyperfocal distance (focusing)
Unread postPosted: Wed Nov 30, 2011 7:24 pm 
Offline
Senior Member
Senior Member
User avatar

Joined: Mon Aug 15, 2011 1:57 pm
Posts: 303
Location: Atlanta, GA
Jeez, these antihistamines are making me groggy. I never really use scale focusing, so I tried to figure it out and gave up. Think I will get a good night's sleep for a change and then try it. Not your instructions, believe me, just my dead brain/eyes/sinuses/throat/ etc. :oops:


Top
 Profile  
 
 Post subject: Re: Hyperfocal distance (focusing)
Unread postPosted: Wed Nov 30, 2011 8:23 pm 
User avatar
Help. DOF discussions here as well! :cry: the problem that I have with the concept is that it is too unreliable. The end result depends on the use and size of the print, the subject matter, film or sensor and even the light one views the print in. My take is that I assume there is no DOF, place my focus exactly and control the fuzziness of fore and background with the aperture.


Top
  
 
 Post subject: Re: Hyperfocal distance (focusing)
Unread postPosted: Sat Dec 31, 2011 3:42 pm 
Offline
Newbie
User avatar

Joined: Sat Dec 31, 2011 5:15 am
Posts: 10
Location: Encino, Ca. USA
Jaapv wrote:
Help. DOF discussions here as well! :cry: the problem that I have with the concept is that it is too unreliable. The end result depends on the use and size of the print, the subject matter, film or sensor and even the light one views the print in. My take is that I assume there is no DOF, place my focus exactly and control the fuzziness of fore and background with the aperture.

By using the aperture as such you are doing exactly what it is to either zone or hyperfocus. All you have to do now is look at the scale. ;)


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron