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Thread: Exposure trouble.

  1. #1
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    Default Exposure trouble.

    I am having trouble with over-exposure. I am not sure how to correctly expose my images, they usually turn out over-exposed?
    My camera is always set on AV mode at about f5.6-f6.3 if that has anything to do with it. I have no idea what i am doing wrong as i don't really no how to use my camera well enough yet :roll:

    Any help will be mostly appreciated.
    Thankyou in advance, cheers Micah
    I just wish the world was twice as big and half of it was still unexplored.

    Reposts and hard C&C always welcome,
    Cheers,
    QLD.

  2. #2
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    Default Re: Exposure trouble.

    A bit hard to say without seeing a specific example, Av mode should adjust shutter speed to get "correct" exposure at the aperture chosen. It's a bit unusual for a camera to consistently over expose, most cameras need to be pushed to do this. Which camera are you using?, what metering mode? Are the images just a bit light or are the are the highlights blown out and without detail?

    If it is consistently producing over exposed images or doing in a particular situation then you can dial in some negative exposure compensation. Shooting Raw can help as you can adjust the exposure later. Ideally an image should be exposed to the right i.e. the histogram biased to the RHS without blowing highlights to minimise noise.
    Chris Ross
    Helensburgh NSW
    www.aus-natural.com
    Instagram: @ausnaturalimages

  3. #3
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    Default Re: Exposure trouble.

    Yeah, give us a bit more detail and we can help a bit better.

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    Default Re: Exposure trouble.

    Okay, i guess it could just be time of day as i was shooting at about 8:30-9:00 on a sunnyish day, what i really want to know is how to under-expose my images? Excuse my ignorance if i am on the completely wrong tracks :roll:
    So what did i do wrong in this?
    Shutter: 1/250
    AV mode: f7.1
    ISO speed: 400
    Metering: pattern
    No flash.

    So how would i change my settings to under-expose this image ?

    Thanks for helping, Micah.
    I just wish the world was twice as big and half of it was still unexplored.

    Reposts and hard C&C always welcome,
    Cheers,
    QLD.

  5. #5
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    Default Re: Exposure trouble.

    Oh yeh almost forgot, taken with my Canon 350D with my 75-300mm ef lens.
    I just wish the world was twice as big and half of it was still unexplored.

    Reposts and hard C&C always welcome,
    Cheers,
    QLD.

  6. #6
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    Default Re: Exposure trouble.

    You have two or three choices Micah, you can dial in exposure compensation, you'll need to consult your manual for how to access, you can switch to manual exposure and reduce shutter speed while leaving aperture constant or you could use spot or partial metering if it is available, you probablywould still need exposure compensation with that method though for the white subject.

    Manual is probably the best method as you have to remember to turn off the expsoure compensation on your next subject. Note that correctly exposing the dandelion head will send the BG quite dark.

    The other thing is to shoot in RAW as you'll normally have access to a highlight recovery slider which can help if you've gone slightly over on exposure. I'd say this one looks too far over for recovery though.
    Chris Ross
    Helensburgh NSW
    www.aus-natural.com
    Instagram: @ausnaturalimages

  7. #7
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    Default Re: Exposure trouble.

    Yeah, exposure compensation will be the biggest help. I shoot -1/3 of a stop all the time if the sun is out. If I was shooting something white in full sun like you have here I would be dialling in -2/3 of a stop or even -1 1/3. For a subject like this that is not going anywhere in a hurry I would be using Manual mode so that you can experiment a bit with the exposure.
    You might also benefit from bracketing your shots. This will mean that the camera will take three shots. One at the metered shutter speed, one at below the metered SS and one above the metered SS. You can control how much it goes over and under as well. Have a look in your manual

  8. #8
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    Default Re: Exposure trouble.

    Use your histogram. On my 400D it will blink what parts of the image are overexposed so you can dial down the exposure a tad until you get it exposed perfectly.
    For the shot you've shown I would drop the ISO down to 200, and take a few shot with 1/3 exp comp, check the histogram and repeat dialing down the exp until you've gotten the exposure you require.
    Also with the 75-300mm, try not to take images @ 300mm as they will appear much softer than if you got closer and took it at say 200 or 250mm. I encountered that problem a lot when I used that lens.

  9. #9
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    Default Re: Exposure trouble.

    Thanks for all the help guys,
    Will read my manual now and learn how to adjust the exposure compensation,
    Thanks again. :P

    Cheers Micah.
    I just wish the world was twice as big and half of it was still unexplored.

    Reposts and hard C&C always welcome,
    Cheers,
    QLD.

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