This is a brief excerpt from thePhoBlographer
After seeing the Dust Donut kickstarter project not long ago, we started to really wonder about everything that goes into weather sealing a lens. During the review period, I took the Canon 24-70mm f2.8 L USM II out into Hurricane Sandy–which the company claims is weather sealed. Indeed, it stood up to the elements quite well. But to really find out just what keeps our lenses protected, we decided to talk to a couple of engineers from a couple of camera companies.
The answers are actually much more simple than we thought.Now, not every single consumer needs a weather sealed lens–but they are very nice to have for the professional market and for those that often shoot in remote areas that have tougher climates. Back in the fully analog film days, Ansel Adams would take large glass slides coated in photographic material into the Arctic to photograph the landscapes there. Those were another set of problems that were faced though: especially transporting all that glass and ensuring that the snow would stay out of his camera bellows.
In modern technology, nearly every camera and lens has electronics built into them. Electronic devices have never always worked …
By: Chris Gampat
via planet5D pinterest news http://pins.planet5d.com/how-a-lens-becomes-weather-sealed/
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