Originally posted by kjphilippona My problem is the images not being in focus, and the one in focus are not sharp. The three lenses are F1.4 or f1.8 and stoped down to f4 or more and still not sharp. I am also shooting at fast shutter speeds so it should freeze any movement. I just hate missing so many pictures due to these problems.
OK, this is very helpful.
Firstly, I strongly suggest calibrating the AF fine focus on each camera, with each lens. Your photos look great, but to get maximum sharpness in the right places, you really need to calibrate the fine AF. It can make a *huge* difference shooting at f/4.5 with a close subject. As I mentioned previously, there are articles on how to do this. Let me know if you can't find them and I'll have a look myself.
Next... where are you focusing? On the closest eye? This is typically - not always, but typically - the right place to focus for a portrait, so if you're not focusing there already, that's where you should aim for (you can always focus there and move to recompose if necessary).
To the photos...
1st photo - looks really good. shutter speed looks good at 1/320, maybe slight back-focus (depending on what you focused on, and lens AF calibration)
2nd photo - looks pretty good, but hands blurred. Faster shutter speed needed, perhaps, to capture any motion; and stop down further if hands should be more in focus too
3rd photo - looks pretty good, but some minor blur in face. Again, shutter speed is kind of low here if you want to avoid blur due to movement of the subject. Also, focus looks a little in front of the face (lens AF calibration or focus point issue?)
4th photo - lovely. Nice and sharp - my guess is focus is on the nose? I note that shutter speed is a little faster here - 1/200s - maybe there's something in this shutter speed thing?
I won't go any further right now... I stick with my original suggestion of ensuring your AF is calibrated for each camera and lens combo first. Then, I would suggest shooting at no less than, say, 1/320 (or even faster) - for a while. See what results you get. 1/100s isn't a fast shutter if you're capturing movement (even very slight movement from a typically fidgety child)
Last edited by BigMackCam; 02-28-2016 at 05:22 PM.