Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-23-2011, 07:46 PM   #31
Pentaxian




Join Date: Mar 2010
Location: SW Washington
Posts: 820
-All air on Earth contains water vapor, unless artificially dried.
-No camera lens contains an airtight vacuum. A zoom would not function with a vacuum or airtight seals.

Therefore...

There is water vapor in all lenses, no matter how "WR". Fungus does not require standing water to grow. It can grow by pulling moisture directly from the air.

Another point: fungus takes a long time to grow in a relatively sterile environment such as a lens. Just check your bathroom, which has far more water and organic matter. Even if you never clean it and leave water everywhere, it takes weeks for it to get really noticable. There's hardly anything inside the lens for fungus to grow from. It is extremely unlikely that a single incident could suddenly cause a significant growth. Most likely it had been growing for a long time now, and only now was it noticed.


Last edited by Cannikin; 01-23-2011 at 07:59 PM.
01-24-2011, 02:57 AM   #32
Veteran Member
Spock's Avatar

Join Date: Aug 2009
Location: Perth, Western Australia
Photos: Albums
Posts: 419
QuoteOriginally posted by stevebrot Quote
(BTW...you don't have to have a leak to get visible droplets inside a lens either...humid lens change indoors in winter followed by taking the camera outside into the snow...)
I agree, I've had waterproof watches get fogged up behind the crystal when exposed to a big change in temperature.

...Speaking of which, why doesn't fungus grow on watch crystals and on the watch face itself?
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
fungus, k-mount, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this fungus or something else? Cynthia Pentax SLR Lens Discussion 14 11-29-2010 05:43 AM
Nature Fungus wildman Post Your Photos! 1 04-20-2010 12:51 AM
Nature Fungus Blaze Post Your Photos! 6 02-21-2010 07:12 PM
I believe it is fungus photolady95 Digital Processing, Software, and Printing 6 11-22-2009 10:48 AM
Is this fungus? hahifuheho Pentax SLR Lens Discussion 21 12-13-2008 06:47 PM



All times are GMT -7. The time now is 09:00 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top