manual mode

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coling

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Another newbie question, and I have read the manual lol (canon 450D)

When shooting in manual I can set shutter speed and apeture, but not the exposure compensation. The manual states that this is correct.

How do I overcome this, sometimes the picture is way too bright or dark because hte camera has adjusted the compensation automatically.
 
coling said:
How do I overcome this, sometimes the picture is way too bright or dark because hte camera has adjusted the compensation automatically.
Click to expand...

If it's done that, then you're not in manual exposure mode, you must using be one of the automatic or semi-automatic modes. Are you sure the dial on the left of the top of the camera is set to 'M'?

Otherwise, adjust either the shutter speed or the aperture depending on what your priorities are.
 
Manual mode allows you to choose the exposure, the camera has no input to the exposure, so 'Exposure compensation' has to be done by you, by changing the shutter speed, aperture or ISO.
 
You set the 'exposure compensation' by changing the shutter speed and aperture in manual mode, the camera shouldn't be doing that.

The picture could be too bright if you have, for example, too wide an aperture (low f number) on a very bright day.

Have a look in the tutorials section on here for the one on understanding exposure if you are not sure of the relationship between all these things.

edit: what Thmaga said :)
 
Yep definitley in manual mode, the manual states exposure compensation not available in M.
Just had another play around and adjusted the apeture and got it to the right exposure setting.
 
The whole point of exposure compensation is it's still based on what the camera thinks is the right exposure. You're telling the camera "Pick the right exposure and then (for instance) over expose by a stop".

In manual mode you're making all the exposure choices.
 
The aperture is the hole through which the light passes. You make it bigger (small f no) or smaller (big f no) and that affects how much light gets to the sensor.

Shutter speed affects how long you hold the hole open for 1/2o sec is slow and lets a lot of light past, 1/1000 is faster and lets less light in.

ISO is the other one you need to learn. ISO is the sensitivity of the sensor to light ISO 100 for bright days and you get the best quality here. ISO 1600 and above are for really low light situations where you have no choice but to go high ISO and risk some noise in the image.

Hope that helps explain it.
 
as AliB said

if it was a film camera, the only things you have at hand to adjust exposure are shutter speed, and aperture. Digital throws ISO in the mix. The exposure tools are the same, the ISO just sets how sensitive the sensor is for you

Exposure compensation lets you adjust out from where the camera measures optimum exposure is, in manual, the camera isnt deciding it for you, so there is nothing to compensate

No mater how clever the meter or software is, or the Program modes are, essentially, 2 basic things are being controlled - aperture and shutter speed
 
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