Establish focus on the desired part of the subject, e.g. the eye of a person, and hold it; reframe (recompose) the shot so the composition is right and release the shutter..
Doug J wrote:.
Establish focus on the desired part of the subject, e.g. the eye of aperson, and hold it; reframe (recompose) the shot so the compositionis right and release the shutter..
And of course the reason why we do it is because the camera sets focus on the middle of the picture, but we often want the part of the subject which is focussed upon to be away from the centre of the frame...
As described above by Doug..
There is not much need for focus and recomposing on a modern mid-range DSLR. You normally have 9, 11 or 15 focus points to chose from. So a fractional adjustment of your scene is all you really need..
There are those who say that to focus and recompose using only the central sensor can lead to focus errors. Here are the arguments for and against:.
I avoid it because:.
A) I shoot wide open around f/2 to f/4.
B) autofocus is never 100% accurate so focus which is + or- 5% off coupled with a recompose error may reneder my shot OOFc) it takes time and you may miss that candid moment..
*Nikon* D Eighty + Fifty - Other equipment in Profile.
Chris brings up a good point about using multiple focus points, and it should be mentioned. Depending on what your shooting, and the conditions, focus & recompose may be added and unnecessary complexity..
Here's an example of where it could be used. A lot of what I shoot are subjects - birds - against a busy background, a lot of this is with low light. Consequently I use large apertures with shallow DOF. I typically use center focus point only to ensure the bird is focus, then I recompose to frame it properly and set the exposure..
For landscapes, group photography and many other styles it is not needed..
Imagine two people standing in front of you, side by side, with two feet of space betweeh their heads..
If you pint the camera straight at them,. the focus mechanism "sees" the tree fifty feet away betweeen their heads..
If you turn the camera slightly and focus on Bill's face, hold the shutter release half way down, and then recompose by moving the camera back so the far away tree is back in the middle of the shot, and then press the release the rest of the way, Bill (and Doug, beside him) will be sharp..
For the second picture, don't forget to point the camera again at Bill, and recompose again..
I'm totally with you. I don't have time with birds to move the focus points around. I have to use the center point, press the shutter halfway, and recompose. I find it much faster, especially at really long focal lengths...
Depending on camera and it's focusing mode, you can set the camera to focus on a specific region of the frame, thus no need to recompose (though it's faster to recompose most of the time)..
My real issue with recomposing is that my camera does all it's metering in the center 1/9 of the image (i can use average and another type of metering also, but sometimes they don't work as expected!). And if I have a high contrast scene, i'll need to meter on the subject so it's well exposed and then I deal with the composition Thank god for AE-L locks!..
Re-writing a song after you realise the first version stinks!RegardsKev G..