Focus Breathing, is this really an issue?

[Mike_E]

OK, I wear glasses and have never noticed it.

Am I immune, oblivious or is this just something that Ken Rockwell made up as one of his little jokes?

 

[The_Traveler]

It's real but I can't imagine caring unless it actually effects what you are doing.

 

[KmH]

With some zoom lenses focus 'breathing' is pretty dramatic.

Nikon's AF-S 18-200 mm superzoom comes immediately to mind as a prime example.
When used close to it's near focus limit and zoomed to 200 mm, the magnification is only about 135 mm worth.

 

[runnah]

Just like shooting a rifle.

 

[Helen B]

I don't know what KR thinks it is, but focus breathing is an issue when pulling focus in motion pictures. It's why motion picture lenses are designed not to 'breathe' - ie change the angle of view as the focus is changed, and it applies to prime lenses as well as zooms. To counteract breathing the lens needs to shorten its focal length slightly as you focus closer. What does KR mean? Air wheezing in and out? Maybe it is just his little joke, as is most of his site.

 

[DarkShadow]

Shooting a rifle and more so a handgun breathing technique is critical to accuracy.If I shoot my Kahr CW4543 45 cal Semi auto with a 3.64inch barrel with conventional riffling,I could plink 4 X 6 inch steel plates consistently at 75 yrds..If my breathing technique suffers I could miss it consistently at 50 yards or less.Breathing techniques is applied to just about everything.Target shooting,Martial arts,Sports or weight training and so on. Why not photography be any less important, unless a tripod is used then breathing technique goes out the window.

 

[Buckster]

I've noticed it, but I always allow myself a bit of room for cropping anyway, so it's not something I ever pay real attention to.

 

[480sparky43 42]

Focus breathing can become an issue when focus stacking. Some software can account for it, but not all.

 

[Buckster]

Focus breathing can become an issue when focus stacking. Some software can account for it, but not all.

Good point. I've found that Zerene Stacker has handled that issue very well for me.

 

[cgipson1]

Shooting a rifle and more so a handgun breathing technique is critical to accuracy.If I shoot my Kahr CW4543 45 cal Semi auto with a 3.64inch barrel with conventional riffling,I could plink 4 X 6 inch steel plates consistently at 75 yrds..If my breathing technique suffers I could miss it consistently at 50 yards or less.Breathing techniques is applied to just about everything.Target shooting,Martial arts,Sports or weight training and so on. Why not photography be any less important, unless a tripod is used then breathing technique goes out the window.

Not that kind of "Focus breathing!" lol!

lens - Is it normal for focal length to change while focusing? - Photography

 

[DarkShadow]

Dont forget to breath and pass out and fall down with your precious expensive gear.

 

[Helen B]

Shooting a rifle and more so a handgun breathing technique is critical to accuracy.If I shoot my Kahr CW4543 45 cal Semi auto with a 3.64inch barrel with conventional riffling,I could plink 4 X 6 inch steel plates consistently at 75 yrds..If my breathing technique suffers I could miss it consistently at 50 yards or less.Breathing techniques is applied to just about everything.Target shooting,Martial arts,Sports or weight training and so on. Why not photography be any less important, unless a tripod is used then breathing technique goes out the window.

Not that kind of "Focus breathing!" lol!

lens - Is it normal for focal length to change while focusing? - Photography

That's a funny thread. 'DragonLord' is full of it and Stan Rogers is spot on.

 

[DarkShadow]

Shooting a rifle and more so a handgun breathing technique is critical to accuracy.If I shoot my Kahr CW4543 45 cal Semi auto with a 3.64inch barrel with conventional riffling,I could plink 4 X 6 inch steel plates consistently at 75 yrds..If my breathing technique suffers I could miss it consistently at 50 yards or less.Breathing techniques is applied to just about everything.Target shooting,Martial arts,Sports or weight training and so on. Why not photography be any less important, unless a tripod is used then breathing technique goes out the window.

Not that kind of "Focus breathing!" lol!

lens - Is it normal for focal length to change while focusing? - Photography

Oh Opps! I read the link, now i get it.Dont mind me I am little slow sometimes.

 

[cgipson1]

Shooting a rifle and more so a handgun breathing technique is critical to accuracy.If I shoot my Kahr CW4543 45 cal Semi auto with a 3.64inch barrel with conventional riffling,I could plink 4 X 6 inch steel plates consistently at 75 yrds..If my breathing technique suffers I could miss it consistently at 50 yards or less.Breathing techniques is applied to just about everything.Target shooting,Martial arts,Sports or weight training and so on. Why not photography be any less important, unless a tripod is used then breathing technique goes out the window.

Not that kind of "Focus breathing!" lol!

lens - Is it normal for focal length to change while focusing? - Photography

Oh Opps! I read the link, now i get it.Dont mind me I am little slow sometimes.

Don't worry about it! I shoot handheld a lot (even Macro), so I am a proponent of good "Focus" Breathing techniques... just like the ones I use for knocking down rams at 200 meters with my Super Blackhawk!

 

[Mully]

[/QUOTE]

Don't worry about it! I shoot handheld a lot (even Macro), so I am a proponent of good "Focus" Breathing techniques... just like the ones I use for knocking down rams at 200 meters with my Super Blackhawk![/QUOTE]

Charlie ...you silhouette shoot ... me too Remington XP, 35 Remington ....I used to do so much of this when I lived in CA