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Filter to get irregular streaking

filters streak

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#1 Maximilian Sándor Lakner

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Posted 17 July 2016 - 12:08 AM

Hi,

 

I was biking home today after watching Finding Dory, going uptown on first avenue in Manhattan, and I always love the "effect" I was experiencing, and I often become away of it after going to a movie - where all the streetlights and lightsources bloom and streak - but everything not near the light sources looks not too soft - but the main thing is that the streaks and blooming are totally irregular, some lights have massive streaks, others very little, some in one direction, some in another - is there any filter or other image modifier that can approximate that?  

 

Thanks!!

Max


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#2 Maximilian Sándor Lakner

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Posted 17 July 2016 - 01:30 AM

Or just one intensity of streaks but radically different angles as the lightsource moves within the frame.


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#3 Macks Fiiod

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Posted 17 July 2016 - 03:27 AM

Are we talking about one of these?

http://www.bhphotovi...ing_filter.html


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#4 Satsuki Murashige

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Posted 17 July 2016 - 01:47 PM

Or are your talking about motion blur?
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#5 Maximilian Sándor Lakner

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Posted 17 July 2016 - 02:17 PM

No, I think I mean a filter with very irregular streaks on it, in all directions, so as the camera moves the streaks change rapidly.  Maybe it doesn't exist.  


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#6 Satsuki Murashige

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Posted 17 July 2016 - 03:10 PM

You could make a custom filter with KY Jelly or nose grease smeared onto an optical flat. Lots of people have made rigs with small prisms and bits of glass or clear plastic in front of the lens as well.
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#7 aapo lettinen

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Posted 17 July 2016 - 04:48 PM

smeared nose grease is great for this effect. you can fine tune the effect by making strokes with the grease to different directions. it works mostly by diffraction so the streak direction is sideways to the stroke direction (just like with fishing line based streak filters, a vertical line makes horizontal streak) . if one filter is not enough you can make another on the other side of the optical flat to save filter trays  ^_^


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#8 Jon Kline

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Posted 18 July 2016 - 04:57 PM

You might also try a vari-cross filter. These let you make two streaks of an adjustable angle around point light sources.


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