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What is the 'standard' lens when shooting on Red with a 2.40 aspect ratio?


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#1 Morgan Peline

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Posted 16 July 2010 - 11:25 AM

Hi,

Yet again..I should know this! But....

What lens size is considered the 'standard' lens when shooting in a 4K 2.40 aspect ratio on the Red One?
e.g. its a 50mm lens for 35mm, 25mm when shooting on 16mm.

What is it on Red - is it still the 50mm?

Thanks!!!!!!!!!!!!!!
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#2 David Mullen ASC

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Posted 16 July 2010 - 04:08 PM

Think of it this way, whether you shoot and record Red 4K 16:9, your horizontal view is the same on the same focal length whether you are shooting cropped vertically to 1.85 or 2.40 using spherical lenses.

So if you think a 50mm is a "normal" perspective for 1.85 on the Red, you'd probably think it was the same for 2.40 on the Red. Now if you are comparing diagonal view (not sure who does) then cropping more to 2.40 means you'd want use a slightly shorter focal length to compensate.
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#3 Morgan Peline

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Posted 16 July 2010 - 04:51 PM

Think of it this way, whether you shoot and record Red 4K 16:9, your horizontal view is the same on the same focal length whether you are shooting cropped vertically to 1.85 or 2.40 using spherical lenses.

So if you think a 50mm is a "normal" perspective for 1.85 on the Red, you'd probably think it was the same for 2.40 on the Red. Now if you are comparing diagonal view (not sure who does) then cropping more to 2.40 means you'd want use a slightly shorter focal length to compensate.


Thanks a lot David! That makes sense!
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