Kevin Chick |
How to focus on fast movng objects? Great site by the way. I have read the maunal over and over but it says to point on your target and then move with it as the camera focuses. Now this may be possible on someone running but when its a bike doing 120mph its impossible, especially if Im using a lot of zoom as the bike only comes into full focus at the last minute. Any help or advice in this area would be great. I will try and add a photo but there is a range at http://www.brandshatch.co.nr where you can see the problem, any feedback would be handy. thanks
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Kevin Chick |
Sorry, I forgot to add that I use a Canon DSLR 350D and at present I am using the auto-setting for moving objects with a 70-300mm lens. I usually have to use the full zoom to get close to the bikes as the spectator areas are a distance from the track.
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Danielle E. Rutter |
Kevin - This isn't exactly a field of expertise for me but I'm guessing it will be a lot easier to go to manual focus. It'll be tricky at first and you'll need a lot of practice but in the long run that will be your best bet. Otherwise, at high speeds like that, you'll just be guessing if your camera decided to focus on the right thing or not. Good luck!
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Stephen J. Innes |
Hey dudes.. been thinking about moving subjects and checked the 20D's manual to find that Canon recommend AI Servo to keep track of moving subjects. When out there doing some little birdy photos, I find using this and programming just the centre AF point on the camera helps big time - with enough ISO and a fast shutter speed to take care of the ol' shakes. I believe the 350D allows for this little wheeze too - maybe it will get you that elusive sharp focus! S
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Irene Troy |
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Irene Troy |
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- Bob Cournoyer Contact Bob Cournoyer Bob Cournoyer's Gallery |
Digital Rebel? Set it on "Sports" mode and pan with the action.... Bob
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Justin G. |
Don't quote me on this but I believe I read somewhere (or someone's post) that Canon says cameras will autofocus 2 times faster at 2.8 than at 5.6 (or something close to that). I noticed you're using a 70-300 which I believe is a 4-5.6. If you considered investing a f/2.8 lens it will already be built to autofocus faster but then at the 2.8 you'll have a much brighter viewfinder and the autofocus will focus that much faster. Just a thought.
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Kevin Chick |
Thanks for the info everybody, there is certainly a lot of things to try for my next track visit and others to investigate. I am trying to use my own panning with the action rather than using any tripods etc, because when the area is busy with spectators there will not be much room and I dont have the luxury of a "press pass". :-) Bob - I was using "sports" mode but it is very difficult to pan on a bike from a long way off when you have the zoom out to 300mm already and keeping it focused. Justin - Your idea of a dfferent lens sounds interesting. Do you mean look for a 7-300 lens at f/2.8 or ANY lens that offers f/2.8?
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Justin G. |
I don't believe Canon has a 70-300 f/2.8 lens but they do offer a 70-200 f/2.8 lens. If motorcycle racing is your main shooting I wouldn't worry about the $500 extra IS version. From all the reviews and seeing samples from the 70-200 f/2.8L lens, I'd take one in a heartbeat if I had a EOS camera (I only got FD). Anyways I'm not trying to persuade you into spending ~$1100 (ish???) but just raising a point. If you have the money you could go for it. Throw your body into AI Servo mode hold your shutter button down halfway and focus on him from a distance coming to you and during his movement the camera will constantly maintain focus and you snap away. Just a thought. Here's a link, click the picture:
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Samuel Smith |
welcome kevin, bob's answer is your best bet and is what I do when shooting r/c aircraft and at 300mm.400 iso. the 2 photos in your gallery are in bright light so maybe you just need to practice. some cameras have a better predictive focus than others but yours should work fine. sam
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- Bob Cournoyer Contact Bob Cournoyer Bob Cournoyer's Gallery |
I thought sports mode on the rebel was automatically/continually focusing itself....besides automatically changing iso/shutter/etc speed/burst... So all you had to do was track/compose the subject and leave the rest to the camera. I don't think the rebel has ai servo. Bob
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Kevin Chick |
The camera does have ai servo, but I think a good suggestion was to fix the focusing to the central point only, that way I wont get so many "misses" where the camera focuses on the barrier behind the motorbike instead.
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Justin G. |
Center focus, keep it locked, recompose.
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