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Sun 01/05/05 at 15:24
Regular
"Just ram it in!"
Posts: 1,036
After taking a picture of my PC after tidying up the cables a bit, I noticed that all the fans of the picture looked as if they were still, as if the computer was not on. Now I thought with digital cameras the shutter speed on the lenses would blur anything which is travelling at quite a high speed. So why dose the CPU fan which is rotating at 5500rpm look as if it was not on.
[URL]http://img213.echo.cx/img213/196/imag00018ij.jpg[/URL]
Fri 13/05/05 at 21:27
Regular
Posts: 5,848
To elaborate what other users have said the camera doesn't have to be top of the range to contain a varying shutter speeed. Only, moderately priced cameras don't give you the option to control it

The light intensity plays a part in how the shutter speed goes off, and if it is too fast the motion blur isn't visible. Vice versa though, if the camera doesn't have a fast shutter speed it could simply have taken a normal picture and the blur isn't visible in those light conditions

The link didn't load for me so I may never know
Sun 01/05/05 at 20:07
Regular
"Just ram it in!"
Posts: 1,036
At a second glance you can see the dust on the tip of the blades.
Sun 01/05/05 at 16:31
Regular
"Devil in disguise"
Posts: 3,151
poopots wrote:
> Thought that was a feature only found on the more expensive cameras,
> as you can see from the low resolution picture it is quite a cheap
> camera that I got from America 2 years ago.

Not really, what you'll find that expensive cameras give you the option to select the shutter speed etc. as motion blur and other effects can be desirable. Cheaper cameras tend to do it automatically (ie give you on control).

Looking at your picture. You've got strong light sources in an enclosed area. So you've got lots of light, hence a high shutter speed and no motion blur.
Sun 01/05/05 at 15:46
Regular
"Just ram it in!"
Posts: 1,036
Timmargh wrote:
> Resolution has nothing to do with it.
>
> Does the camera have an ISO or film speed setting? The higher this
> is, the more likely it is to catch the fan without blur ... I think.

Nothing in the Menu like that, I’m afraid that it’s just your bog standard cheap camera.
Sun 01/05/05 at 15:39
Regular
"Twenty quid."
Posts: 11,452
Resolution has nothing to do with it.

Does the camera have an ISO or film speed setting? The higher this is, the more likely it is to catch the fan without blur ... I think.
Sun 01/05/05 at 15:36
Regular
"Just ram it in!"
Posts: 1,036
Thought that was a feature only found on the more expensive cameras, as you can see from the low resolution picture it is quite a cheap camera that I got from America 2 years ago.
Sun 01/05/05 at 15:31
Regular
"Chavez, just hush.."
Posts: 11,080
Depends on the shutter speed, if the shutter is really really fast it will get the fan at the exact moment and not blur at all.

That's quite a cool picture though, does look like it's not on.
Sun 01/05/05 at 15:31
Regular
"Just ram it in!"
Posts: 1,036
Corrected.
Sun 01/05/05 at 15:28
Regular
"\\"
Posts: 9,631
poopots wrote:
> After taking a picture of my PC after tidying up the cables a bit I
> noticed that all the fans of the picture looked as if they were still
> and the computer was not on.

Fans don't usually move when you turn the computer off.
Sun 01/05/05 at 15:24
Regular
"Just ram it in!"
Posts: 1,036
After taking a picture of my PC after tidying up the cables a bit, I noticed that all the fans of the picture looked as if they were still, as if the computer was not on. Now I thought with digital cameras the shutter speed on the lenses would blur anything which is travelling at quite a high speed. So why dose the CPU fan which is rotating at 5500rpm look as if it was not on.
[URL]http://img213.echo.cx/img213/196/imag00018ij.jpg[/URL]

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