Request for people with NX 18-200mm

Started Mar 29, 2013 | Discussions thread
Raf007 Regular Member • Posts: 178
Re: Request for people with NX 18-200mm

I can hear the same noise. I looked at the lenses when they are operating and the noise is caused by opening and closing the aperture blades. In PASM modes the diaphragm is closing only when you press the shutter so its not audible when you change aperture. In Lens Priority mode the diaphragm is opening/closing when you half-press the shutter to focus making the noise. In video mode when adjusting aperture the blades also are also moving accordingly thus making sound.

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