Starbursts

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Jenny Smithson

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Jenny
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I tried lots of different settings up to f45 and still didn't get starbursts from the lights on the top of the carpark. What went wrong? Was I too far away? Any thoughts gratefully received.

5896782221_5157be4746_z.jpg
 
you do have star-like pattern, but it's s bit dim. Did you use a tripod and longer exposure (2 sec and longer)?
 
gunnar said:
you do have star-like pattern, but it's s bit dim. Did you use a tripod and longer exposure (2 sec and longer)?
Click to expand...

Yes. Exposure was 4 secs. Now I look at the exif data I notice I had spot metering selected. Would that have made a difference?
 
is that f45 or f4.5?

Ideally, long exposure on a tripod and f11-f16 or even higher!
 
I think Harvey is right. You probably chose f4.5 rather than f45. I don't know any lenses that does f45. The lowest I've seen is f32 on macro lenses. At f45, I'd imagine the shutter speed at dusk would be well into minutes, rather than seconds. Aperture works in reverse from normal way of thinking. Smaller the number, the wider the aperture, and high number is small aperture.
 
f16 will give you stars.
 
Filters to produce this effect were very popular in the 70s. In fact I've been clearing out a lot of accessories and found a Hoyarex 8 point starbust filter probably from 1979. You are more than welcome to it, free, if you want to try it. There's no filter holder so you'd need to manually support it in front of your lens.
 
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