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Color temperature with Zeiss Super Speeds


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#1 Michael Summers

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Posted 21 April 2010 - 04:36 PM

I am filming a sequence this weekend that is a nighttime exterior/bonfire. We've decided to go with zeiss super speeds for this sequence over the canon 8/64 we've normally been using on set. I found this video online documenting how the lenses perform, and am curious as to why the color temperature of the image changes so drastically when the lens is opened up. Is this normal or is it just a fluke with the lenses in this video?


View on Vimeo

Thanks!
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#2 Chris Keth

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Posted 22 April 2010 - 05:25 PM

I am filming a sequence this weekend that is a nighttime exterior/bonfire. We've decided to go with zeiss super speeds for this sequence over the canon 8/64 we've normally been using on set. I found this video online documenting how the lenses perform, and am curious as to why the color temperature of the image changes so drastically when the lens is opened up. Is this normal or is it just a fluke with the lenses in this video?


View on Vimeo

Thanks!


The color temperature doesn't change when the lens is opened up. They do get quite soft wide open, though.
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#3 Michael Summers

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Posted 27 April 2010 - 05:36 PM

The color temperature doesn't change when the lens is opened up. They do get quite soft wide open, though.


I shot last weekend so wish me luck, but the video i posted shows clearly a change in color temperature between apertures 1.3 and 2. Nothing you can't change in post but I am still curious about it.
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#4 John Sprung

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Posted 27 April 2010 - 06:40 PM

This was shot on film and transferred to video, which is likely where the color got tweaked. I've never seen a lens do that. Where was the transfer done?




-- J.S.
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#5 andres victorero

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Posted 16 May 2010 - 05:01 PM

Very strange
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