I was trying to do some time lapse photography last night but I was having some issues with the camera staying focused.
Since I was doing time lapse shots, I went ahead and setup my camera in manual mode. Everything from exposure to focusing was manual:
Shooting Mode: M
Aperture: f2.8
Shutter Speed: 1"
Focus: M
AF Selector: Single point
So I get my first shot composed and focused. Everything seems fine. I look through the viewfinder and my focus indicator is showing that the area I have selected is in focus (dot is showing). I turn on Interval Timer Shooting, set up my parameters and press "OK" to start the time lapse. The camera fires off the first shot but loses focus by the second shot. I know this because I was looking through the viewfinder, more specifically at the Focus Indicator icon, and it changed from being a dot (in focus) to the 2 arrows pointing at each other. I tried several times to correct this, but had no luck. It kept jumping out of focus for some reason.
Anyone know why my camera keeps losing focus even if everything is setup manually?
The equipment I was using:
D700
24-70mm f2.8 (this lens does not have VR so I didn't have to turn that off. Also, I set the focus setting on the lens to manual as well)
Gitzo Carbon Fibre Tripod
Markins Ballhead Q20 (more than enough to support the weight of my equipment. no creeping)
Since I was doing time lapse shots, I went ahead and setup my camera in manual mode. Everything from exposure to focusing was manual:
Shooting Mode: M
Aperture: f2.8
Shutter Speed: 1"
Focus: M
AF Selector: Single point
So I get my first shot composed and focused. Everything seems fine. I look through the viewfinder and my focus indicator is showing that the area I have selected is in focus (dot is showing). I turn on Interval Timer Shooting, set up my parameters and press "OK" to start the time lapse. The camera fires off the first shot but loses focus by the second shot. I know this because I was looking through the viewfinder, more specifically at the Focus Indicator icon, and it changed from being a dot (in focus) to the 2 arrows pointing at each other. I tried several times to correct this, but had no luck. It kept jumping out of focus for some reason.
Anyone know why my camera keeps losing focus even if everything is setup manually?
The equipment I was using:
D700
24-70mm f2.8 (this lens does not have VR so I didn't have to turn that off. Also, I set the focus setting on the lens to manual as well)
Gitzo Carbon Fibre Tripod
Markins Ballhead Q20 (more than enough to support the weight of my equipment. no creeping)