zeitlos wrote: Steve Spencer wrote:
You may not know this but there is also software that will let you display the AF box. That would be very helpful in evaluating any shots for the claim the AF box is indicating the focus point wrong. If the AF box is always on the eyes in these shots, then what seems to be the problem is that the AF indicator box is not working properly, but there in the big majority of these shots where the focus plane can be determined despite the motion blur the EyeAF is focussing on an eye (or a similar oval object) it just it often isn't the one you intended.
First: I know that there is/was software to see display the AF box. Apple aperture was able to do so. Which one (for Mac) can do it today?
Second: What do you mean when you say "AF indicator box is not working properly". Seems complicated again. It's working perfectly (as I've stated multiple times) with all my lenses. So is it the lens or the camera responsible for a properly working AF indicator box?
Third: How can you talk about motion blur if the nose quite often is sharp?
Well, as I said. I leave it there. The only thing I'm interested in is which software can show where the focus box was at the time a picture was taken?
#1 see my last post.
#2 What I mean by that is the AF indicator box is not indicating where the focus actually occurs.
#3 You need to think more about motion blur in your shots and examine them a bit more closely. There are a number of those shots in which the nose is not sharp because of motion blur. Despite that no one part of the photo (including noses) is the indicator of motion blur. If the child is holding their nose steady but blinking or crinkling their eyes in a smile the nose and the shutter speed is too slow the nose will be sharp but the eyes will be blurry because of motion blur (this assumes depth of field covers both). So to prevent motion blur you need to keep your shutter speeds up and if you don't know image stabilization does not help at all with motion blur. Likewise high resolution digital files require faster shutter speeds than film used to require to prevent motion blur, but there aren't any hard and fast rules. Different subjects require different shutter speeds (birds in flight for example often need 1/1000), but in my experience anything less than 1/100 for kids is too slow (and your shots seem consistent with my experience as they show motion blur) and I prefer a considerably faster shutter speed and will often sacrifice ISO (cranking it up a bit) to get it.
Nov 16, 2018 at 05:33 PM
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