Ok I have a 40D and I am trying to decide what AF mode to use. Which one do you use and why?
Oops, that "AO servo AF" should have been "AI servo AF" Mods can you please change that for me.
| POLL: "WHat AF mode do you use" |
 One Shot AF | 44 54.3% |
| AI foucus AF | 9 11.1% |
| AO servo AF | 25 30.9% |
| Manual Focus | 3 3.7% |
Donte Member  162 posts Joined Oct 2007 Location: San Diego More info | Oct 24, 2007 00:32 | #1 Ok I have a 40D and I am trying to decide what AF mode to use. Which one do you use and why?
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thatkatmat Cream of the Crop  9,342 posts Gallery: 41 photos Likes: 205 Joined Jul 2007 Location: Seattle, don't move here, it's wet and cold More info | Oct 24, 2007 00:48 | #2 I use "one shot" as I like to be able to MF after I AF sometimes....But when I'm tracking of course I use AI-Servo, I don't have AO servo and never heard of it but I do use AI focus when I'm shooting my kids sometimes....but mostly keep it in one shot mode My Flickr
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tonylong ...winded  More info | Oct 24, 2007 01:00 | #3 I would think that most people would want to be prepared and practiced to use any mode. The only one that has a not-so-good rep is AI Focus AF, in which you trust the camera to know when to switch between One Shot and AI Servo (Your AO Servo is a typo, I presume). Those who do macro, low light and other difficult lighting (low contrast) situations eventually must get to know Manual as well. So, what is your real question Tony
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inzite Member 230 posts Joined Mar 2007 More info | Oct 24, 2007 01:53 | #4 oneshot and aiservo cuz my mark3 only has those two 1D M3, 5D, 35L, 85L, 24-70L, 70-200L, 580EX, 580EXII
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liquefied Goldmember  1,160 posts Joined Oct 2006 More info | Oct 24, 2007 01:55 | #5 This is a silly poll. I doubt anyone here who knows how to use their camera uses only one of these modes.
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calicokat Cream of the Crop  14,720 posts Likes: 2 Joined Oct 2005 Location: Southern California More info | Oct 24, 2007 02:03 | #6 I use them all, it just depends on the situation "You are going to fall off a cliff trying to get a better shot someday"- My hopeful and loving wife
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tdodd Goldmember  3,733 posts Likes: 3 Joined Jun 2006 Location: Essex, UK More info | Oct 24, 2007 02:11 | #7 AI Servo most of the time, unless I need to go to manual because the AF cant get it right. If I need "One Shot" I just press the AF-On button (or * button, depending on which body I'm using) briefly and then let go. I really don't see the need for or benefit of the One Shot or AI Focus modes.
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silvex Cream of the Crop  More info | Oct 24, 2007 02:13 | #8 calicokat wrote in post #4181270  I use them all, it just depends on the situation Ditto! can manual focus a flying/running object. .
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MikeI Goldmember  2,074 posts Likes: 1 Joined Dec 2006 Location: NorCal More info | Oct 24, 2007 02:33 | #9 All of the above... Doubleshot Photography
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PAFC2004 Goldmember  1,084 posts Joined Mar 2006 Location: Adelaide, Australia More info | Oct 24, 2007 02:38 | #10 As other people have said, it depends on what I'm shooting. I'm hardly going to use AI Servo for a stationery object... just like I wouldnt use One Shot for a moving object. Canon 5D MKii |Canon 350D | EF 17-40L | EF 70-200 2.8L | 580EX II | 430EX | EF 1.4x T/C II | EF 50 1.8II | Q6600 + 8800 Ultra
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Crossfire Senior Member  464 posts Joined Jul 2007 Location: Auckland, NZ More info | Oct 24, 2007 02:54 | #11 Can't say I've ever used AI Focus. Use all the other three depending on what I'm shooting pointView | photography
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LotsToLearn Goldmember 2,290 posts Joined Mar 2007 Location: GTA, Canada More info | Oct 24, 2007 05:22 | #12 Can't vote because I use them all depending on the need/desire.
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primoz POTN Sports Photographer of the year 2005  2,532 posts Likes: 2 Joined Dec 2004 Location: Anywhere where ski World cup makes its stop More info | Oct 24, 2007 05:56 | #13 Sorry for being rude, but this is ridiculous. You are going to use af mode which gets most of votes??? So if One shot gets most of votes, because most of voters is shooting landscape, I should use it for sport? Or vice versa. PhotoSI
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Oct 24, 2007 06:25 | #14 I use all with my 40D Sony A6400, A6500, Apeman A80, & a bunch of Lenses.............
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Jon,TheElder teaching fish to ride a bicycle  2,490 posts Likes: 2 Joined Oct 2004 Location: Warren, Michigan More info | Primoz is right, in that this is a pointless question for anyone other than a first-day-noobie. A 40D, a 30D, some nice glass and a great Shooting Partner.
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anyhow, i don't think a specific one i use over the other, i use one or the other dependin wat i'm shooting certainly u won't track a flying bird with oneshot.
