Panasonic GX1 + Olympus 14-42 video exposure changing rapidly when zooming

Started May 5, 2013 | Questions thread
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bethonos
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Panasonic GX1 + Olympus 14-42 video exposure changing rapidly when zooming
May 5, 2013

I've got Panasonic GX1 with Olympus Zuiko 14-42mm II. The lens is great for my needs (more compact than panasonic non-powerzoom model and better quality than powerzoom model + with the WCON wide converter really nails my photo needs).

However, i found one issue with this lens. Please check the video below and observe how the exposure rapidly changes (observe "flashes" of brightness in the image as I zoom out):

http://youtu.be/ZhoPXcHYfVo

I don't have any other zoom lens for this camera to compare. I see this effect also on display when i zoom in/zoom out the lens.

1) I'm not sure if this is the issue of the lens itself or is simply my lens broken?

2) Will it be any better with Panasonic 14-42 lens?

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