Quote:
Originally Posted by SandeeWig
Thank you lputman and daft_biker for your replies; also thanks for the link to the other thread, it was quite helpful.
Actually, daft_biker, I posed a question to you based on your response there.
I guess focusing at center point and recomposing the shot is one of my problems. Another is most likely trying to use a wide aperture when it's not necessary or where it creates too narrow dof for the shot.
Still workin out the kinks...
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It is important to remember that focusing and recomposing is only going to cause problems with a very narrow depth of field. It's just basic maths at work. Think of it as a right triangle. If you compose your shot 5 feet from your subject, then move your point of focus 2 feet away, you've potentially changed your distance by a little under six inches. At 5 feet, 1.8 aperture that matters, because that six inch difference is greater than your depth of field. However, at 8 feet, it matters much less, because moving the focal point two feet changes your focal distance by only 3 inches while your depth of field is much larger than that.
It's all a game of numbers, but I'd still love tips on how people focus on the eyes perfectly without using the focus indicators. It's just against my nature to let absolute statements like that go without pointing out they really need to be qualified.