Thread: Red Lenses

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  1. #11  
    Senior Member Finner's Avatar
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    Quote Originally Posted by Brook Willard View Post
    A lens like this will not have internal NDs.

    I've worked with a PL mount cannon 300mm that does actually have a slide in spot for filters on the rear of the lens. It comes with a clear glass in it when you are not using ND's. The lens will not focus properly without a piece of glass in that position. Its the only 300 I know like that though.
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  2. #12  
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    Quote Originally Posted by Finner View Post
    I've worked with a PL mount cannon 300mm that does actually have a slide in spot for filters on the rear of the lens. It comes with a clear glass in it when you are not using ND's. The lens will not focus properly without a piece of glass in that position. Its the only 300 I know like that though.
    Nikon does.

    http://www.kenrockwell.com/nikon/3004af.htm
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  3. #13  
    Senior Member Finner's Avatar
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    I don't believe that Nikkon is a cine lens?

    I'll Re-phrase Its the only 300mm cine PL mount lens I know of like that.
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  4. #14  
    REDuser Sponsor Brook Willard's Avatar
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    Quote Originally Posted by Finner View Post
    I've worked with a PL mount cannon 300mm that does actually have a slide in spot for filters on the rear of the lens. It comes with a clear glass in it when you are not using ND's. The lens will not focus properly without a piece of glass in that position. Its the only 300 I know like that though.
    I was misinterpreting his "internal filters" comment. I thought he was referring to those internal lenses in consumer grade cameras that have a little "ND" switch on the side. I know some people who think that's just how it's done...

    So yeah, we weren't on the same page.
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