18-250mm pentax

LitoNazareno · 05-25-2010, 06:05 PM

Hi,
I just found dust inside my 18-250 lens. I read that zooming lenses like this with a long extension can cause a bellows effect pumping dust into the the housing. Can anyone corroborate this. Lito

Marc Sabatella · 05-25-2010, 06:08 PM

There's probably dust inside most lenses. Doesn't affect image quality unless there's a ton of it.

fractal · 05-25-2010, 07:00 PM

The 18-250 is a dust magnet. I wouldn't be too worried about it. Mine had plenty and I never noticed it in my images.

Adam · 05-25-2010, 07:03 PM

As the others said, it shouldn't affect IQ and is quite normal as long as the specs are few and relatively far between

Adam
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05-25-2010, 06:05 PM	#1
LitoNazareno Inactive Account Join Date: Feb 2010 Photos: Gallery \| Albums Posts: 12	18-250mm pentax Hi, I just found dust inside my 18-250 lens. I read that zooming lenses like this with a long extension can cause a bellows effect pumping dust into the the housing. Can anyone corroborate this. Lito

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05-25-2010, 06:08 PM	#2
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	There's probably dust inside most lenses. Doesn't affect image quality unless there's a ton of it.

05-25-2010, 07:00 PM	#3
fractal Inactive Account Join Date: Nov 2008 Location: Melbourne Photos: Gallery Posts: 3,547	The 18-250 is a dust magnet. I wouldn't be too worried about it. Mine had plenty and I never noticed it in my images.

05-25-2010, 07:03 PM	#4
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	As the others said, it shouldn't affect IQ and is quite normal as long as the specs are few and relatively far between Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers: