AF Modes

freefall7 · 29th May 2009

Hi all...

I really appreciate if someone can tell me when to use these following Canon AF modes :

AI Servo, One Shot , AF Servo.

Thanks for sharing.

sabee · 29th May 2009

This is actually answered in your manual.

One shot focuses only once. AI Servo mantains and adjust focus as long as you track the subject. AI Focus causes your camera to be smart and switch between both modes as necessary.

shawnlim · 29th May 2009

AI Servo AF: used for moving subjects and focuses continuously
AI Focus AF: used for unpredictable motion; Focus as ONE shot,
but swithces to AI Servo AF if the subject moves and focus continously on the moving subject.
One Shot AF: still subjects and snapshots.

Hope it help

bubbagump · 29th May 2009

Originally Posted by sabee

This is actually answered in your manual.

One shot focuses only once. AI Servo mantains and adjust focus as long as you track the subject. AI Focus causes your camera to be smart and switch between both modes as necessary.

Yea! You will be surprised by how much is covered in your manual!

2evans · 29th May 2009

Reading the manual is really helpful. It's amazing how many features are packed into these cameras!

freefall7 · 29th May 2009

Thanks all for sharing your knowledge.

The camera is not mine. Just borrowed it from my friend who lost his manual and do not know this function well himself.

Anyway, thanks again.

Anfield_Hero · 29th May 2009

ha.. perhaps you could have informed on ur starting post..

so ppl won't have misconception..

pattanct · 30th May 2009

Originally Posted by freefall7

Thanks all for sharing your knowledge.

The camera is not mine. Just borrowed it from my friend who lost his manual and do not know this function well himself.

Anyway, thanks again.

not sure which model, one can actually download the manual from the internet.

Sivakis · 30th May 2009

How reliable is AI-Focus AF? Is it dependable, or sometimes hit-miss? Cos it seems to do both jobs.

I'm currently relying on One-Shot for still subjects but using AI-servo on moving subjects.

LukaviZ · 30th May 2009

personally i find that one shot focus is a little inconvenient for those who have shakey hands that tend to go forwards n backwards, resulting in loss of focus sometimes; especially if the subject is near the lens /closeup. i usually use ai servo, but some lens seem to focus slow, only then i'd use af-focus

29th May 2009	#1
freefall7 Member Join Date: Apr 2004 Posts: 66	AF Modes Hi all... I really appreciate if someone can tell me when to use these following Canon AF modes : AI Servo, One Shot , AF Servo. Thanks for sharing.

29th May 2009	#2
sabee New Member Join Date: Mar 2009 Posts: 21	Re: AF Modes This is actually answered in your manual. One shot focuses only once. AI Servo mantains and adjust focus as long as you track the subject. AI Focus causes your camera to be smart and switch between both modes as necessary.

29th May 2009	#3
shawnlim Member Join Date: Sep 2004 Location: Jurong West Posts: 256	Re: AF Modes AI Servo AF: used for moving subjects and focuses continuously AI Focus AF: used for unpredictable motion; Focus as ONE shot, but swithces to AI Servo AF if the subject moves and focus continously on the moving subject. One Shot AF: still subjects and snapshots. Hope it help

29th May 2009	#5
2evans Member Join Date: Nov 2007 Posts: 854	Re: AF Modes Reading the manual is really helpful. It's amazing how many features are packed into these cameras!

29th May 2009	#6
freefall7 Member Join Date: Apr 2004 Posts: 66	Re: AF Modes Thanks all for sharing your knowledge. The camera is not mine. Just borrowed it from my friend who lost his manual and do not know this function well himself. Anyway, thanks again.

29th May 2009	#7
Anfield_Hero Member Join Date: Jun 2005 Location: West Coast Posts: 92	Re: AF Modes ha.. perhaps you could have informed on ur starting post.. so ppl won't have misconception..

30th May 2009	#9
Sivakis Member Join Date: Sep 2008 Posts: 176	Re: AF Modes How reliable is AI-Focus AF? Is it dependable, or sometimes hit-miss? Cos it seems to do both jobs. I'm currently relying on One-Shot for still subjects but using AI-servo on moving subjects.

30th May 2009	#10
LukaviZ Member Join Date: Feb 2009 Location: Singapore, East Sider Posts: 154	Re: AF Modes personally i find that one shot focus is a little inconvenient for those who have shakey hands that tend to go forwards n backwards, resulting in loss of focus sometimes; especially if the subject is near the lens /closeup. i usually use ai servo, but some lens seem to focus slow, only then i'd use af-focus __________________ 40D+BG / Tamron 17-50, 90 Canon 50F1.8, 28-70F2.8, 580EXII / 190XProB