06-14-2010, 04:02 PM
[quote name='HarryLally' date='14 June 2010 - 10:18 PM' timestamp='1276525136' post='502']
The attached article should help answer your questions, at least in part:
[url="http://www.lensrentals.com/news/2009.11.01/lens-repair-data-35"]http://www.lensrenta...-repair-data-35[/url][/quote]
In addition, [url="http://www.lensrentals.com/news/2010.03.06/this-lens-is-soft-and-other-facts"]http://www.lensrenta...and-other-facts[/url]
"Lens variation isn't always random...
While not studied, there has long been a lot of talk that certain lenses had “bad batchesâ€... Our own experience supports this...
The Canon 300 f4 IS was one of our most trouble-free lenses, but we purchased 6 copies last December, of which 4 developed electrical problems. None of about 30 other copies bought earlier or later had that problem, we only saw it in that one batch of lenses....
Before the Fanboys among you gear up (pun intended again) to use one sentence out of this to claim your brand is better than their brand (I actually read a psychological study on why people feel the need to do that, perhaps another article some day, but the summary is it says a lot more about the Fanboy than it does the product in question) there’s plenty of evidence that there is variation among every brand."
The attached article should help answer your questions, at least in part:
[url="http://www.lensrentals.com/news/2009.11.01/lens-repair-data-35"]http://www.lensrenta...-repair-data-35[/url][/quote]
In addition, [url="http://www.lensrentals.com/news/2010.03.06/this-lens-is-soft-and-other-facts"]http://www.lensrenta...and-other-facts[/url]
"Lens variation isn't always random...
While not studied, there has long been a lot of talk that certain lenses had “bad batchesâ€... Our own experience supports this...
The Canon 300 f4 IS was one of our most trouble-free lenses, but we purchased 6 copies last December, of which 4 developed electrical problems. None of about 30 other copies bought earlier or later had that problem, we only saw it in that one batch of lenses....
Before the Fanboys among you gear up (pun intended again) to use one sentence out of this to claim your brand is better than their brand (I actually read a psychological study on why people feel the need to do that, perhaps another article some day, but the summary is it says a lot more about the Fanboy than it does the product in question) there’s plenty of evidence that there is variation among every brand."