New answers tagged equipment-damage
Here are a few tips to help you improve your results with zoom effect : Zoom-Effect Keep the Camera Still – as you will be using a slow shutter speed any movement of the camera will significantly impact your shot. Ultimately you want to capture a zooming movement in these shots so any side to size or up and down shake will impact the smoothness of the lines ...
Moving elements around in the lens or changing its size (most lenses get longer or shorter when zoomed) will necessarily move air around. Doing so while the shutter is open may allow dust to get on the sensor. Since getting a little bit of dust on the sensor is the worst thing that can happen if you zoom during an exposure, I would call it perfectly safe.
I found this technique as a recommendation to try out with a DSLR in a number of books on photography. To my knowledge it is safe for the lens and the body.
Provided your lens isn't a power zoom (fairly rare, these lenses have motors that drive the zoom mechanism), then no you will not damage either camera or lens.
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