No, it's not sharpness or ISO noise. It's the self-timer mode. Thought you might get a chuckle out of this and yes, I know, there are ways around it.
I thought I would take a self portrait so I mounted the D7000 on a tripod and set it up for self-timer mode. The wall behind me was uniform with nothing to specifically focus on. The camera distance was about 4 feet from the focus point (my face).
I pushed the release half way down and heard the auto-focus motor run for a bit trying to get a focus point. Finally it settled on something and I saw the light flashing indicating that the timer had started. I jumped into the frame and the photo was taken.
It was totally out of focus. At that moment I realized that the focus is locked once the timer is started and doesn't continually focus until the photo is taken. I was not going to be able to push the release, get the camera to re-focus on me when I got in the frame and take the photo.
Three important lessons learned today:
1. Continuous focus doesn't apply to the self-timer. 2. You really can't be in two places at the same time! 3. I really should have one of those little remote triggers!
Have a great day.
"Red is gray and yellow white, but we decide which is right ....and which is an illusion"
One way around this (without having to use a remote release) is to place an object of some kind where the subject is going to be, focus on it, remove the object and switch the camera and/or lens to manual focus. Then use the self-timer delay as normal
I have had this problem in the past as well, and from then on decided to use MF for self portraits. Another thing you can try doing however is changing the focus points to where you will be standing in the frame.
Hmmmm... Same as on my D90. I have a wireless and infrared remote and use them so never encountered this. I wonder why they designed it that way? I guess the logic is that you would want to set focus when you are composing, and you are only composing when looking through the viewfinder. Peter
I've usually done this with me and my significant other, and focused on her as I started the timer, but have always worried about it. I did find that the remote trigger was only $19. I couldn't believe it, and it works GREAT! But I always wondered: does it focus when I hit the remote, or only when I first set it up?