Re: Canon 20d focusing issues
- From: "Mike Warren" <miwa-not-this-bit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 28 Sep 2005 14:32:09 +1000
Todd.J.Olson@xxxxxxxxx wrote:
> Here's a shot from the wedding that came terrible just to show you
> what I'm so confused about.
>
> http://filebox.vt.edu/users/tolson/photos/IMG_2104.JPG
I have only looked at the wedding shot and this is what I see:
-The pattern on the waist on the brides dress is reasonably
in focus.
-The grooms head is moving forward causing slight motion blur.
-The brides hand and arm are moving causing motion blur.
-The brides maid is outside the DOF and therefore out of focus.
-The camera is moving in a rotary direction with an axis just below
the centre of the picture.
-The background is blurred partly due to DOF and partly due to
the camera movement.
What I don't understand is why the DOF is so small when the
lens is set to 35mm and F16. There's something odd there.
Perhaps diffraction is adding to the problems.
At 1/80th of a second shutter speed you need to really hold the
camera still. The direction of the camera movement suggests that
you may have pushed the shutter release instead of gently
squeezing it.
Has this picture been reduced or cropped?
-Mike
.
- References:
- Canon 20d focusing issues
- From: Todd . J . Olson
- Canon 20d focusing issues
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