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Ian

posted on 24th Feb 06 at 03:49

Forget about aperture, for the purpose of this explanation its not important.

Cam chooses shutter speed based on how much light is there, to expose the pic correctly, ie. not too light, not too dark. Shutter stays open longer = pic will be lighter. Shutter is quick = pic will be darker. The aim is to get a balanced pic that looks right and doesn't exhaust the dynamic range of the camera (ie. all the tones and colours).

The choice is usually based upon the mid-point of all light in the pic, ie. bits of dark, bits of light, but not one predominantly dark or light bit, the camera will be fine and go for the middle.

As your pic has loads of light stuff in it (big white sky, headlights, reg plate), its chosen to knock the average down a bit so the white gets exposed properly. Because of this the dark bits are very dark. Hence you can't see your wheels.

My suggestion earlier was to over-ride the cameras choice and manually over-expose the pic. Basically ignore the cameras opinion of what will look right and up the average yourself. The sky will go very bright indeed but no worry, thats not as important as seeing your wheels.

As a side note, brighter pics means slower shutter, which normally means shake unless you support the camera ideally on a wall or something, or most ideally on a tripod.

[Edited on 24-02-2006 by Ian]


vibrio

posted on 23rd Feb 06 at 18:40

quote:
Originally posted by C4 WLK
quote:
Originally posted by Ian
You've got a bright sky and headlights on so the camera has metered fairly dark anyway so as not to over-expose those areas.

Ideally you need to manually over-expose to bring up the wheels. You'll blow the highlights (ie. the sky will be one big area of white instead of tones of grey etc.) but the pic will be lighter.

Failing that recompose so the rest of the pic is sympathetic to your subject - ie. its all dark and not so contrasty.


that meas bugger all to me!! :boggle:


it means that because of the sky and the head lights the camera has choosen a fast shutter speed to balance the light. this means the sky etc is not just a blown white colour this means that the dark area's are even darker. put an object on the windowsill and take it's pic. the window will be ok but the object will be dark.


Graeme

posted on 23rd Feb 06 at 17:25

quote:
Originally posted by Ian
You've got a bright sky and headlights on so the camera has metered fairly dark anyway so as not to over-expose those areas.

Ideally you need to manually over-expose to bring up the wheels. You'll blow the highlights (ie. the sky will be one big area of white instead of tones of grey etc.) but the pic will be lighter.

Failing that recompose so the rest of the pic is sympathetic to your subject - ie. its all dark and not so contrasty.


that meas bugger all to me!! :boggle:


vibrio

posted on 22nd Feb 06 at 21:05

you're picture is underexposed to start with



[Edited on 22-02-2006 by vibrio]


jamesvalver

posted on 22nd Feb 06 at 20:27

i defo have that problem with my gf's car. there is alot of black on the front and nothing ever comes up on the photos


vibrio

posted on 22nd Feb 06 at 09:29

quote:
Originally posted by Ian
:lol:

PS

Take the photo properly. Post processing isn't the answer to everything :|



ICY sticks the camera on P FFS :lol:


Ian

posted on 22nd Feb 06 at 01:51

:lol:

PS

Take the photo properly. Post processing isn't the answer to everything :|


Icy

posted on 22nd Feb 06 at 01:18

use shadow highlight on ps


Ian

posted on 22nd Feb 06 at 00:38

You've got a bright sky and headlights on so the camera has metered fairly dark anyway so as not to over-expose those areas.

Ideally you need to manually over-expose to bring up the wheels. You'll blow the highlights (ie. the sky will be one big area of white instead of tones of grey etc.) but the pic will be lighter.

Failing that recompose so the rest of the pic is sympathetic to your subject - ie. its all dark and not so contrasty.


Jas

posted on 22nd Feb 06 at 00:16

lol i have this problem with mine lol...

thats why I always say black wheels look 100x better in the flesh!


vibrio

posted on 21st Feb 06 at 22:36

yes you'll need decent light


Graeme

posted on 21st Feb 06 at 22:35

so only going to really be able to see them in the bright light or with a gd expensive camera, are the pictures ok them selves though as in focus and stuff?


vibrio

posted on 21st Feb 06 at 22:33

it's because they are black. and your flash is not powerfull enough


Graeme

posted on 21st Feb 06 at 22:21

I took these pics of my car the other week and as you can see the wheels dont come up at all, icy will hopefully be able to help as they are his old wheels but overall what are the pics like?
ok?
:boggle: