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Forum: Photographic Technique 03-17-2015, 09:43 AM

Perfect focus everytime
Posted By PDL

Replies: 299
Views: 103,822

Here are links (again) to several reasons to use "Back button Focus".

10 Autofocus Tips - PentaxForums.com
K10 autofocus question - PentaxForums.com
Auto-focus: how do you use it? - Page 3 - PentaxForums.com
Talk me out of selling all my pentax gear - PentaxForums.com
Focus lock on subject - PentaxForums.com
If you can't focus with your Pentax... - PentaxForums.com
2 questions... - PentaxForums.com
Manual focus retouching and Hyperfocal - PentaxForums.com
Do you use the AF button? - Page 3 - PentaxForums.com

Read more at: https://www.pentaxforums.com/forums/6-pentax-dslr-discussion/43995-who-uses-a...#ixzz3Uf67z0zY

and comment #87 on this thread which shows

I have not been commenting on much lately, but here goes.

About using the AF button and de-coupling AF from the shutter button. The following is a list of posts/threads that I have commented in over the last few years. This is not a new subject and it is a revelation only to the uninitiated. Maybe this subject should become a sticky.

Do you guys fire more often in autofocus or manual focus?
https://www.pentaxforums.com/forums/58-pentax-beginners-corner-q/61808-af-opt...you-use-2.html
https://www.pentaxforums.com/forums/58-pentax-beginners-corner-q/75115-do-you...gs-camera.html
Rant about Pentax's One Legged AF and a weird quirk that I wish would go away

quote from this thread
"To those of you using the AF button to - disable AF.

Just who is in control of when the subject is in focus?
Shutter button ==> the camera.
Shutter button -> AF button ==> the camera until the human intervenes - but still the camera.
AF Button ==> the human.
manual ==> the human.

Personally I prefer the last two - I am in control - not the camera."

Another quote from the thread:
"I have attended two photo workshops sponsored by National Geographic. At each one the guy(s) from NG have de-coupled AF from the shutter button - so THEY decide when the object is in focus - not the camera. In fact, one of them (Michael Melford) said that on his Canon MkIII something or another - the only two custom functions he sets up are to display the histogram on the LCD and to de-couple AF. He has at least 5 covers."

AF button on K20
tips on AF-ON usage

Contains a long rant a duplications of threads:
Who uses the Auto Focus button?
How do you focus?
If you can't focus with your Pentax...
Back button Focus

Enjoy -

Read more at: https://www.pentaxforums.com/forums/38-photographic-technique/249785-back-but...#ixzz3Uf72YcFP

Just look around - the answers to your questions are here.
The elitist - formerly known as PDL

Forum: Photographic Technique 02-04-2014, 01:44 PM

Perfect focus everytime
Posted By PDL

Replies: 299
Views: 103,822

I do not mean to wet on anyone's parade, but I have been suggesting that the use of the so called Back Button Focus technique for years both here and on DPR. I have used the method (which I call using the AF button for what AF means) since 2005. This is not new, nor is it bold, it has been a standard mode of operation for some of us for decades. It allows me the same flexibility that my manual film SLR's provided me since the early 70's. While this method is not a panacea, it does go a long way to allow the "photographer" to maintain creative control.

https://www.pentaxforums.com/forums/38-photographic-technique/249785-back-but...#ixzz2sO5KwnRS

The Elitist - Formerly known as PDL

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