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John816

Lens flares blurry if image is blurry?

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I'm making a trailer where the text is initially out of focus and then comes into focus.

 

All the while a lens flare is moving across the screen.

 

I was wondering: in real life with a real camera, if the subject is out of focus, would any lens flares also be out of focus?

 

Lens flares occur in the lens itself so I'm wondering if they would remain sharp even if the subject is blurry?

Edited by John816

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A flare is always "sharp". If the zoom changes, the interlenticular distances in the lens apparatus change which in turn means the whole appearance of the flare changes - light bounces off and gets refracted differently inbetween the individual lens elements, meaning the colors shift, elements change sizes, elements disappear, others appear. So whatever you do, making the flare blurry would be wrong. More or less in such a scenario you would have to create a fade between two different flares that represent the different zoom levels and animate individual parameters. Depending on the level of realism you want to attain, this could become quite complex...

 

Mylenium

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A flare is always "sharp". If the zoom changes, the interlenticular distances in the lens apparatus change which in turn means the whole appearance of the flare changes - light bounces off and gets refracted differently inbetween the individual lens elements, meaning the colors shift, elements change sizes, elements disappear, others appear. So whatever you do, making the flare blurry would be wrong. More or less in such a scenario you would have to create a fade between two different flares that represent the different zoom levels and animate individual parameters. Depending on the level of realism you want to attain, this could become quite complex... Mylenium

 

Niiice! Thanks!

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