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02/15/2006 11:51:44 PM · #1 |
did I just miss the head shot ?
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02/16/2006 12:05:10 AM · #2 |
I also have a 20D and I can assure you that the AF is QUITE fast. You just had bad luck this time. Next time make sure you focus right before you take the pic. You should also shoot in bursts when doing moving subjects. This increases your odds of taking a crisp, clean, sharp, and well composed image. Just my two cents.
Charles |
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02/16/2006 12:13:44 AM · #3 |
His paws and down his side seem ok ,but the head and eyes are not ,he was running straight at me ,I am sure that I had him focused in the eyes .
He was moving at full stride and his head does stick out futher than the rest of him ,is it not possiable?or I am I just barking up the wrong tree? LOL |
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02/16/2006 12:57:50 AM · #4 |
Looks like you had his head focused fine, but since he was still moving, his paws and legs got to the point where his head was by the time you clicked the trigger.
It takes time to check that the foucs is right after you focus lock and before you click the shutter all the way, so that's probably all it was.
AF-Servo mode should help with that, and possibly burst mode too if you want.
Or you can put it on manual (or automatic too, if it's on 'one shot' mode), and just focus on a point where the subject is going to be, and time it so their head is on that point right as you click.
Taking pictures of moving dogs is hard for me too, I rarely get it right. And exposure is another issue altogether depending on the lighting.. |
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02/16/2006 01:04:20 AM · #5 |
This is a common problem. I first experienced this in sports photography when photographing a subject moving towards me. When using a shallow depth of field, it takes very little time for your subject to move inside your depth of field. We are talking about a situation where 1 or 2 feet of movement can make a difference. The best way to handle this type of shot is to use the AI-SERVO focus mode where the focus follows the moving subject. If you pause for 1" between the AF locking and the shutter opening, that dog would have moved inside the focus point.
*too slow* :)
Message edited by author 2006-02-16 01:04:44.
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02/16/2006 01:19:43 AM · #6 |
It also helps to stop down the aperture a bit to ensure things are in proper focus. If the light is good I often shoot my 70-200 between f/5.6 and f/8 if moving subjects are the target. Furthermore, the predictive autofocus in AI Servo mode doesn't kick in on the firt shot, so you have to take a burst to get it going.
Message edited by author 2006-02-16 01:22:23.
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02/16/2006 07:24:17 AM · #7 |
Originally posted by jmsetzler:
This is a common problem. I first experienced this in sports photography when photographing a subject moving towards me. When using a shallow depth of field, it takes very little time for your subject to move inside your depth of field. We are talking about a situation where 1 or 2 feet of movement can make a difference. The best way to handle this type of shot is to use the AI-SERVO focus mode where the focus follows the moving subject. If you pause for 1" between the AF locking and the shutter opening, that dog would have moved inside the focus point.
*too slow* :) |
Thanks .
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