Thread: Zeiss LWZ.3 21-100mm t2.9-3.9 COVERAGE

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  1. #1 Zeiss LWZ.3 21-100mm t2.9-3.9 COVERAGE 
    Senior Member Karel Šimůnek's Avatar
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    Hi guys, I have a question regarding Zeiss LWZ.3 21-100mm t2.9-3.9 lens.
    Does it cover Dragon 5K and 6K clearly?
    I looks like a great lens and I’m thinking about used 6K Dragon MG or new 5K Dragon-X.
    Thank you for your info
    KAREL ŠIMŮNEK fan of RED :)
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  2. #2  
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    Quote Originally Posted by Karel Šimůnek View Post
    Hi guys, I have a question regarding Zeiss LWZ.3 21-100mm t2.9-3.9 lens.
    Does it cover Dragon 5K and 6K clearly?
    I looks like a great lens and I’m thinking about used 6K Dragon MG or new 5K Dragon-X.
    Thank you for your info
    https://cvp.com/tools/cameralens

    With 5k you should be okay, the image circle is 31.1 mm
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  3. #3  
    Senior Member Karel Šimůnek's Avatar
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    Oh, nice online coverage tool Misha
    KAREL ŠIMŮNEK fan of RED :)
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  4. #4  
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    LW 21-100 Zeiss is perfect with Dragon-X. The problem is with Gemini.
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  5. #5  
    Senior Member Karel Šimůnek's Avatar
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    Thank you Marc.
    Do you have any real world screen with Gemini to see how bad it is?
    KAREL ŠIMŮNEK fan of RED :)
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  6. #6  
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    No, i don’t have real experience with Gemini and the zeiss LW zoom.
    I stay with the Dragon in part because of the image circle issue.
    This zoom is so good.
    I asked to Zeiss and they said there are restrictions with the Gemini sensor.
    Perhaps somebody have made a real try.
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  7. #7  
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    Not bad on the Red Helium at 8KHD or 8KWS. A little more vignetting at 8kFF.

    I can send you pictures if you want to see.
    Last edited by Olivier Gresse; 05-16-2019 at 03:02 PM.
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  8. #8  
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    On Gemini format table (instructions of use),it says at 4.5K FF the diagonal is 31.21 mm.
    It is 30.91 if 4.5K 2:1 .
    As the LW 21-100 Zeiss zoom covers 31.1 mm, Can we conclude this zoom should be ok at 4.5K 2:1 zoom on 21mm?
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  9. #9  
    Senior Member Karel Šimůnek's Avatar
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    Quote Originally Posted by Olivier Gresse View Post
    Not bad on the Red Helium at 8KHD or 8KWS. A little more vignetting at 8kFF.

    I can send you pictures if you want to see.
    Hi Olivier, Yes that would be great if you can post in 8K FF, 8K HD and 8K WS on Helium :)

    Thank you
    Karel
    KAREL ŠIMŮNEK fan of RED :)
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  10. #10  
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    Hi Karel,

    Here are 3 pictures with Helium @ 8K :

    8K FF : 8192 x 4320




    8K WS : 8192 x 3456





    8K HD : 7680 x 4320

    Last edited by Olivier Gresse; 07-04-2019 at 03:07 AM.
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