[OM] Re: For you Canon users.

[Chuck Norcutt]

About the same aperture (14") but faster at f/11 vs. f/14
<http://www.celestron.com/c2/product.php?CatID=15&ProdID=89>

and fluorite will slowly dissolve in water.  Gotta keep your powder dry.

Chuck Norcutt

siddiq@xxxxxxx wrote:
> 
> On Feb 6, 2008, at 11:06 AM, Tim Hughes wrote:
>> At that price ,I hope the flourite elements have not turned to mush  
>> from moisture absorbtion!
>>
>> Tim Hughes
> 
> How does that work?
> 
> and Real Full Frame Canon users dont bother with the piddly 1200.  
> they use this:
> 
> http://www.canonfd.com/mirrorlenses/pages/page10.html

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