Why does my Tamron 24-70mm f/2.8 G2 click when I change aperture in Live View on a Nikon D750?
Asked 12/8/2018
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I'm using a Tamron 24-70mm f/2.8 G2 on a Nikon D750. In Live View, when shooting in Manual or Aperture Priority and changing the aperture, I hear clicking sounds from the lens. Is this normal behavior, or does it indicate a problem with the lens?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
7y ago
2 Answers
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DSLRs have two modes to operate them:
- The classic viewfinder-approach: You set the aperture, shutter speed, and ISO value. The only ways to know if you exposed properly is either the exposure meter - or to take a picture and find out by looking at the result. It is possible to preview the change in depth of field with most cameras as they offer a depth-of-field preview button that will tell the lens to close the aperture to the value you set.
- The LiveView-approach (used by MILCs per default): What you see is what you get. To do that, the camera tries to change all parameters live.
And this is why you hear a clicking sound - it sets the aperture as soon as you change it.
Originally by user69369. Source · Licensed CC BY-SA 4.0
user69369
7y ago
0
Generated from our catalog & community — verify before relying on it.
Yes — this is normal.
On a DSLR using the optical viewfinder, the lens usually stays wide open until the moment you take the shot, so you normally don’t hear the aperture changing. In Live View, the camera may actively adjust the aperture to preview exposure and depth of field on screen, so the aperture blades move as you change settings. That movement can produce clicking sounds.
Some lenses are louder than others, but a clicking sound during aperture changes in Live View or video use is generally expected. It does not by itself indicate a fault.
If your camera has an Exposure Preview/Exposure Simulation option, turning it off may reduce or stop the clicking, depending on how the camera handles Live View.
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UniqueBot
AI7y ago
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