LOG IN    OR   REGISTER TO FORUMS


Help with photo lingo translation

FORUMS Photography Talk by Genre General Photography Talk
Thread started 15 Feb 2010 (Monday) 15:21   
LIST NEARBY THREADS
 
tag03urit
Member
tag03urit's Avatar
Joined Jan 2009
55 posts
Macomb, IL
[MORE/SHARE]

I just finished reading Bryan Peterson's Understanding Exposure and there is a phrase that he uses in a lot of his captions under the photos he has in the book. The phrase is (he is describing what he did to take the photo), "I used an aperture of BLANK and preset the focus via the distance setting on the front of the lens" That last part is what I'm having trouble understanding. What is the distance setting? and how/why do you preset the focus? Any help would be appreciated! TIA!

Post #1, Feb 15, 2010 15:21:06




LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
gonzogolf
Cream of the Crop
Joined Dec 2006
26,380 posts
[MORE/SHARE]

manual focus lenses have a printed scale on them so that if you wanted to focus on something 10ft away you just dialed in the 10ft setting on the scale. Obsolete on autofocus lenses. No need to worry about it

Post #2, Feb 15, 2010 15:25:00




LOG IN TO REPLY
tzalman
Fatal attraction.
tzalman's Avatar
Joined Apr 2005
12,598 posts
Gesher Haziv, Israel
[MORE/SHARE]

Understanding Exposure was written many years ago and some things in it are not applicable to some modern cameras. This is one of them.

Post #3, Feb 15, 2010 15:57:37


Elie / אלי
I look at the world and I notice it's turning, while my guitar gently weeps.
With every mistake we must surely be learning, still my guitar gently weeps.
Paul Harrison
Siteexternal link

LOG IN TO REPLY
Digital_zen
Senior Member
Digital_zen's Avatar
Joined Jul 2009
390 posts
Northeast Georgia, U.S.
[MORE/SHARE]

There are actually still times when presetting your focus can help a lot, but you can still autofocus to do it. I often prefocus to a spot on the ground toward which any moving object (usually my son or daughter) i nearing, then there is (hopefully) time to recompose while keeping my focus locked, then shoot when the subject comes into focus.
Also when shooting at night I use my cell phone to create a lighted "focus assist device" use the autofocus, on the lighted screen of the phone, then switch the lens over to manual focus, remove the phone from my shot and shoot away.
Many ideas that seem antiquated are still quite useful in digital photography.

Post #4, Feb 15, 2010 16:40:35


You will find no more zen at the top of a mountain, than the zen that you bring there with you.

~zen proverb~

LOG IN TO REPLY
Brikwall
Senior Member
Joined Apr 2007
840 posts
Atlantic Canada
[MORE/SHARE]

A number of current lenses still have the distance scales on them but the information they display is rather limited. In general, they show only the focus index (the distance at which the lens is actually focused) and the depth-of-field scale for just one aperture setting (usually f/22). Both still have their uses - albeit the DOF scale more than the focus index - and it's unfortunate the lens manufacturers have, for the most part, deemed them obsolete. However, there are other means of accomplishing the same tasks, as noted by Digital_Zen.

Post #5, Feb 15, 2010 17:14:47


Dan
Some gear, some experience, and no talent.
Web: http://www.macdonald-photography.comexternal link | http://ambientlight.ze​nfolio.comexternal link |
http://danmacdonald.50​0px.comexternal link

LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
neilwood32
Cream of the Crop
neilwood32's Avatar
Joined Sep 2007
6,220 posts
Sitting atop the castle, Edinburgh, Scotland
[MORE/SHARE]

Presetting focus is still a very useful procedure especially for landscape photographers.

They can use it to maximise the DOF by the use of hyper focal distances. Unfortunately it is something lens manufacturers have decided to omit so we now have to use DOF calculators

Post #6, Feb 15, 2010 18:22:57


Having a camera makes you no more a photographer than having a hammer and some nails makes you a carpenter - Claude Adams
Keep calm and carry a camera!
My Gear

LOG IN TO REPLY
Wilt
Wilt is an old fart who has extensive experience with many brands and many formats of cameras, and extensive lighting knowledge of both studio lighting and speedlights
Wilt's Avatar
Joined Aug 2005
33,480 posts
SF Bay area, CA
[MORE/SHARE]

Apart from the issue that the Distance scale has so few distances marked on them, sp as to make DOF scales useless on modern AF lenses, the other reason the DOF scale is useless in the context of digital SLRs with fixed FL lenses is the fact that they apply only to FF cameras, but not to APS-C cameras!

Post #7, Feb 15, 2010 18:50:28


You need to give me OK to edit your image and repost!
Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention
Keep POTN alive and well with member support http://photography-on-the.net/forum/donate.p​hp

LOG IN TO REPLY
KCMO ­ Al
Goldmember
KCMO Al's Avatar
Joined Sep 2006
1,114 posts
Kansas City, MO
[MORE/SHARE]

AF has changed the way we used to work in many ways. Most AF lenses have very short throws, meaning that they focus faster. Back in the old days, precisions focus lenses often took more than one turn of the barrel to focus. I remember the Alpa 50 macro was like 3 turns from infinity to macro range. Some of the less expensive lenses in the Canon line don't even have a distance scale.

Post #8, Feb 15, 2010 20:06:03


Film: Leica M-4, Elan 7E, Rolleiflex 2.8f, Pentax 645 -- Digital: Canon Pro-1, EOS 5D Mk III
EOS Lenses: Sigma 24-70 f2.8 EX - Canon EF 17-40 f4.0L - Canon EF 24-105 f4.0L - Canon EF 35 f1.4L USM - Canon EF100-400 f4.5-5.6L IS USM - Canon EF100 f2.8 Macro - Other stuff: MR 14EX - 430EX - 580EXII - ST-E2 - TC1.4x - TC-80N3

LOG IN TO REPLY
tag03urit
THREAD ­ STARTER
Member
tag03urit's Avatar
Joined Jan 2009
55 posts
Macomb, IL
[MORE/SHARE]

I understand now, thank you!

Post #9, Feb 15, 2010 23:44:33




LOG IN TO REPLY


LIST NEARBY THREADS
502 views & 0 likes for this thread
Help with photo lingo translation
FORUMS Photography Talk by Genre General Photography Talk



NOT A MEMBER YET? CLICK HERE TO REGISTER TO FORUMS

CHANGE BODY TEXT SIZE FOR ALL THREAD PAGES
POWERED BY AMASS 1.0version 1.0
made in Finland
by Pekka Saarinen
for photography-on-the.net


SEND FEEDBACK TO STAFF  |  JUMP TO FORUM...  |  FORUM RULES


Spent 0.00164 for 4 database queries.
PAGE COMPLETED IN 0.02s
894 guests, 775 members online
Simultaneous users record so far is 3341, that happened on Dec 11, 2014
Latest registered member is Eos23

COOKIES DISCLAIMER: By using this site you agree that some cookies will be stored on your browser. For unlogged users we store one session id cookie. For registered members we store (in addition to login session cookie) only cookies that are essential for required functionality, we do not store any personal tracking data in cookies or other browser's data storage methods.