Motion Blur

Wheels

Julian Keeler
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Julian
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I have seen photos which were taken at night on a long exposure where it blurs lights from the traffic, what would the result be if it was done during the day what sort of effect would that have?
 
Hi julian,

To do this you would need to use a 10stop filter, allowing you to do exposures of 30 seconds or more, You would probably need to adjust your white balance to a custom setting unless you have plenty of cash for the Lee Big Stoppa.. £94.00 plus the holder.

You could go to ISO100 f18-22 and probably get 1/60 on a bright day and slightly less with a polariser fitted.

Or you can stank 3 3stop ND filters (not graduated)

Although during the day you will get some subtle smuges to slight blurring of moving cars..

The rick is the amount of light on the cars, with a shot taken at night it is the brightest part that the camera records (the lights)...

A bit of experimentation with shutter speeds until you get the desired effect will be needed...
 
The thing about doing this kind of photography at night is that the cars will have lights on which will show up on a long exposure. If you try it during the day time the cars won't have lights on so if you use an ND filter and use a 30 second exposure the camera will capture all the static objects but the moving ones will just disappear and maybe give a bit of a ghosting effect.

The key is to try and capture the right kind of subject with the right kind of movement at the right shutter speed. Not easy during daylight.

Have a look for some seascapes done with ND filters and long exposures, that'll give you an idea of the kind of subject suits daytime long exposures.
 
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