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Century 150 - 600 T6.7


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#1 Allyn Laing

Allyn Laing
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Posted 26 July 2007 - 04:54 AM

Hello,

I'm in a lucky position to be using this lens on a shoot this weekend, I am just keen to gather peoples thoughts or comments on it - I am aware its a rehoused Canon and was built in the 80's and it also contains flourite elements - So any additional information on it would be really welcomed i.e how the flourite copes in heat, cold, humidity etc

Awesome, hope to hear from y'all

Allyn.

P.S. we really need a specific lens section
PPS any pictures with this lens would be really great :)

Edited by Allyn Laing, 26 July 2007 - 04:56 AM.

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#2 daria gupalo

daria gupalo
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Posted 26 July 2007 - 03:54 PM

Hmm... guess that's the very lens that won Academy Award for Technical Achievement? hm...

Got really interested in your question and asked our lens tech, he used to work at Century for about 10 years.

He said that since the casing for the lens was changed, the lens got more temperature stable. Not only because the metal the casing is made of changed a bit, but also because th sliding focus system (two metal rods and two rollers that were driving the focus group in side the lens) was replaced with the barrel system. So if before if the temperature would drop, it will affect the casing, the rods, the rollers. Now it only affects casing (not as bad as it used to) and the barrel, which doesn't carry that much on it, so there is no significant focus shift if the temperature drops.

Though, as any zoom lens, it IS affected by significant temperature drops/rises, but not as much as it used to :)

hope this was helpful :)
good luck

Edited by daria gupalo, 26 July 2007 - 03:56 PM.

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