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Thread started 20 Oct 2007 (Saturday) 06:40
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Autofocus for time delay

 
timmyeatchips
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Oct 20, 2007 06:40 |  #1

When shooting with 10s time delay with the 400D/XTi is there a way of making the camera autofocus after the countdown rather than when you hit the shutter release, eg for self portraits when there is nothing at the same distance to lock onto?


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JeffreyG
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Oct 20, 2007 07:24 |  #2

You have to use manual focus, there is no way to do it exactly as you would like.

This makes a self portrait kind of tough. One idea (I used once) is to jab a stick in the ground and focus on that. Then press the shutter, walk around and press your face to the stick so that your eyes are perfectly in focus and then pull the stick and cast it aside.


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StewartR
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Oct 20, 2007 12:37 |  #3

JeffreyG is right. The camera focuses when you press the button, not when it takes the picture, and that can't be changed. You need to adopt one of the workarounds that were suggested.


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Kafn8td
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Oct 20, 2007 12:41 |  #4

Is the Canon remote a 2 stage?




  
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ggt1_02
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Oct 20, 2007 18:35 as a reply to  @ Kafn8td's post |  #5

Yes, the Canon remote is a two stage.


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Kafn8td
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Oct 20, 2007 19:13 |  #6

ggt1_02 wrote in post #4161084 (external link)
Yes, the Canon remote is a two stage.

Dang, something else to buy...




  
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Jon
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Oct 20, 2007 22:05 |  #7

You want a cheaper hobby, take up collecting Lincoln Memorial pennies . . .


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braduardo
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Oct 20, 2007 23:47 |  #8

Buy the $20 wireless remote. If you use it on 2 second delay, I think it will AF right before it trips the shutter, and it gives you a chance to drop the remote.


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Titus213
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Oct 21, 2007 01:05 |  #9

Buy a POTN cable release with the stereo cable extension capability and get a 50 foot extension.


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AperturePriority
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Oct 21, 2007 03:38 |  #10

Yes, either pre-focus manually, or use a remote shutter release.

I bought this wireless shutter remote (external link) and it will focus when you press the remote's button halfway down--just like the real shutter. Great for self-portraits (external link). Every one of those was taken with a wireless remote shutter release.

.


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Kafn8td
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Oct 22, 2007 21:15 |  #11

Jon wrote in post #4161875 (external link)
You want a cheaper hobby, take up collecting Lincoln Memorial pennies . . .

I get it...humor

IMAGE: http://www.tcstangs.com/forum/images/smilies/ugone2far.gif



  
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FUBAR247
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Oct 23, 2007 18:31 |  #12

I'm sure the phottix timer remote C3 makes the camera autofocus before shutter release, I got one today from HK and during a 30sec play of it (couldn't read the instructions as I can't find my glasses) I'm sure that the camera refocused during timed release mode just prior to shutter release, I'll check it again later just to make sure.


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Hermeto
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Oct 23, 2007 19:11 |  #13
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FUBAR247 wrote in post #4179174 (external link)
I'm sure the phottix timer remote C3 makes the camera autofocus before shutter release, I got one today from HK and during a 30sec play of it (couldn't read the instructions as I can't find my glasses) I'm sure that the camera refocused during timed release mode just prior to shutter release, I'll check it again later just to make sure.

Find your glasses and read the instruction, because that is impossible.
Remote switch – with the timer or without it - is just the extension of the shutter button.
It doesn’t do anything that shutter button doesn’t do, it doesn’t change the internal functions of the camera itself.


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FUBAR247
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Oct 24, 2007 08:20 |  #14

exactly!

It does a half press about 1 sec before each of the timers expire this kicks in the autofocus then the shutter is released.

Not found my glasses yet (and no they aint on my head :) ) but I set-up a 5 sec interval timer to take 5 single shots, after each shot I moved the camera to point at another location and it autofocused each time before every shot.

Unless we are talking about something totally different? I'm confident to say that the Phottix C3 will take in focus shots automatically without the need to pre-focus, great for self portraits.


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Autofocus for time delay
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