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peihmal
15th of March 2009 (Sun), 21:57
Hi guys,
I asking for your expert help on metering by camera meter. I have 40D and 24-105L... It seems like every time I take picture without flash, I always got underexposed if my shutter speed is less than 1s... even aperture set at f/4.... Just wonder if there is anything wrong with my camera....
Thanks so much....
Franko515
15th of March 2009 (Sun), 22:12
I assume you dont mean in manual mode (you set everything yourself)

Did you check to see if you have exp. compensation at zero?

R we speaking of indoor or outdoor?

indoors I typically start with the settings of 1/60, f4 - 5.6, ISO 400 (without flash) and of course try to match the color temp of the available light (i.e. tungsten etc.)

Indoor light can fool you into thinking its brighter than it really is (at least where an exposure is concerned).

outdoors the camera may expose for the background if your subject is small in the frame, in that case flash is your friend for a little fill

You were kinda vague in your description but I hope maybe something I said will work for you.
peihmal
15th of March 2009 (Sun), 22:18
I assume you dont mean in manual mode (you set everything yourself)

Did you check to see if you have exp. compensation at zero?

R we speaking of indoor or outdoor?

indoors I typically start with the settings of 1/60, f4 - 5.6, ISO 400 (without flash) and of course try to match the color temp of the available light (i.e. tungsten etc.)

Indoor light can fool you into thinking its brighter than it really is (at least where an exposure is concerned).

outdoors the camera may expose for the background if your subject is small in the frame, in that case flash is your friend for a little fill

You were kinda vague in your description but I hope maybe something I said will work for you.

I have exp. compensation set at zero..
And I am taking pictures at indoor... and I have AWB on...
Franko515
15th of March 2009 (Sun), 22:23
I have exp. compensation set at zero..
And I am taking pictures at indoor... and I have AWB on...

manual, av, tv?

what metering mode (spot etc.)?

what settings (shutter speed, aperture, ISO)?

do you have an example to post?
bsaber
16th of March 2009 (Mon), 04:11
It would help a lot if you can post a picture and tell us what settings you're using (shooting mode, metering mode, etc).
Mike
17th of March 2009 (Tue), 10:51
Agreed, post a picture with exif info.

You are not saying which exposure setting - Av/Tv/M? Even the camera can be fooled into underexposure so the exposure compensation controls are there for a reason. White Balance has nothing to do with exposure.
PhotosGuy
17th of March 2009 (Tue), 12:08
White Balance has nothing to do with exposure. And AWB is very poor indoors.

This shows how the subject can affect the exposure & why manual keeps me worry free:
Post #47 (http://photography-on-the.net/forum/showpost.php?p=5191658&postcount=47)
Click the "Thread: (thread title)" link at the top-right if you'd like more info on the subject.