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Images of Canberra – Danman does traffic

johnboy 13 December 2006 22

Continuing Danman’s series of pictures taken over the weekend here’s what you can do with long exposures, roadways, and moving traffic.

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22 Responses to Images of Canberra – Danman does traffic
terubo terubo 10:45 am 14 Dec 06

“Also because the long exposure time “sucks in” more light the objects that are “dim” become more visible.”
-Sounds like a comment on our dear Politburo?

Thumper Thumper 10:34 am 14 Dec 06

yeah Danman, I remembered that just after I posted. Did a photography unit at uni as part of Cultural Heritage but I’ve forgotten most of it now.

Danman Danman 10:32 am 14 Dec 06

Thumper – thats called depth of field – shallow implies only subject is focussed – long depth of field means a lot more of the picture is focussed. Lower f-stops (wide open arpeture) = only main subject in focus

Danman Danman 10:29 am 14 Dec 06

read teh text – if you have manual settings – chances are you can

Woody Mann-Caruso Woody Mann-Caruso 10:24 am 14 Dec 06

multiply the amount of light by the time in frame

Ah – that makes sense. Wonder if I can do this sort of thing with my new Canon IXUS 60?

Thumper Thumper 10:18 am 14 Dec 06

I used to love mucking around with the F stop and getting just one specific thing in focus with everything else around it all fuzzy.

Great effect.

Mr Evil Mr Evil 10:06 am 14 Dec 06

Absolutely fantastic images, Danman!

johnboy johnboy 10:04 am 14 Dec 06

basically the static objects are there long enough to reflect enough light back to show their position.

The cars are not, but their lights are bright enough to register in a short time.

multiply the amount of light by the time in frame

snahon snahon 10:00 am 14 Dec 06

They are all stationary objects and as such do not get blurred when filming. Also because the long exposure time “sucks in” more light the objects that are “dim” become more visible.

Woody Mann-Caruso Woody Mann-Caruso 9:47 am 14 Dec 06

So why does the grass, the road and the bridge show up? I can’t see how they’d be brighter than a car under the same lights. Or does the light emnating from the car’s headlights “wash out” the lower levels of light coming from the car?

Danman Danman 9:42 am 14 Dec 06

Additionally – the car itself is not still or bright enough to register on the film/ccd – however things like light etc are so bright they burn an image into the film/ccd.

Static things are best for low light exposures – but movement cqan be spectacular as well.

If it was a shorter exposure with more available light the cars would come up – as blurry with shorter trails but we are talking about 1/60 shutter instead of 30 seconds.

Thumper Thumper 9:36 am 14 Dec 06

The longer the exposure the more light gets in, thus it picks up the light as it travels along it’s path.

The trick is to have a perfectly still camera.

Woody Mann-Caruso Woody Mann-Caruso 9:19 am 14 Dec 06

Can some scienmutific person explain why long exposures show long streams of light, and not long streams of cars, or cars stretched out like sausages? It’s like the light reflecting from the cars never make it to the film / CCD, but the light from the headlights does.

Absent Diane Absent Diane 8:52 am 14 Dec 06

awesome…for some reason the top one reminds me of bangkok.. throw in a few monuments to their king and no-one would know

Danman Danman 8:36 am 14 Dec 06

The last refuge of the post apocalyptic city is yet to make an appearance. You will know it when you see it 🙂

Mr_Shab Mr_Shab 8:25 am 14 Dec 06

That’s some fine work Danman. I note that the post-apocalyptic sky makes another appearance in the second shot.

Danman Danman 8:23 am 14 Dec 06

if you look closely – you can see the car coming down the on ramp has its indicator on

Thumper Thumper 8:13 am 14 Dec 06

Gotta love long exposures. Brilliant…

Danman Danman 7:22 am 14 Dec 06

Kane0 – Camera is set in sRGB mode – this enhances colours. As for how long – I would have to have a look at the original image at home to tell you – would be 17mm at f3.5 tho – probably for about 6 seconds.

The art of photography is seeing everything that everyone else does – but in a different way – if that makes sence.

KaneO KaneO 5:53 am 14 Dec 06

It’s quite invigorating to see our town thru others eyes. Amazing how such a ‘boring’ spot (normally you just whizz past it without a thought) can be transformed.
How long do you need to keep it open to make the grass look green?

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