So you’ve set your timelapse up, locked the tripod off and set the camera to full manual control. You leave the camera to shoot away for a few hours, and can’t wait to see the fruits of your labor when you get home.
But after loading those pictures up on your computer you soon realise that there is a problem. The timelapse is flickering across frames, like there the exposure is constantly changing. What’s going on?!
Well the likely cause here is changes in the aperture. Between photos most DSLR’s open the aperture up, then close them again before taking the picture. Unfortunately the blades don’t always fall back into the same position, which can cause minute variances in exposure. This is what causes your video to flicker between frames.
If you’re a canon shooter like me, there’s an easy way to fix this problem, and it’s called the ‘lens twist’ method. It’s very easy to do and works for a variety of DSLR’s (canon is confirmed to work, and I’ve heard reports of some nikon’s working too).
Turn your camera on and set it to the required aperture.
Whilst holding the depth of field preview button (green square), press the lens release button (red square), and unscrew the lens slightly from the camera.
If your camera gives an error such as “communication between the lens and camera is faulty”, try turning your camera off, and repeating the process. Differnet lenses and bodies require different amounts of twisting to fix.
If you enjoyed this post, or have any questions, please let me know in the comments below!