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exposure issue with 20mm lens

Discussion in 'Native Lenses' started by sheepsteeth, Feb 13, 2011.

  1. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    i bought a panny 20mm lens yesterday and havent stopped snapping away since, i think ive got a problem with it though

    if i want to take a picture, i find i have to set it up in such a way that the light meter on my epl1 shows an over exposure of 1* where as if i try to take a picture with my original kit lens (14-42 oly) the image exposes correctly when the light meter says it will.


    is it just a quirk of the panny lens?

    *what is the correct terminology for what i am describing?
     
  2. Alanroseman

    Alanroseman Super Moderator Emeritus

    Dec 21, 2010
    New England
    Hello,

    Are you set to:

    Aperture priority
    Shutter priority
    Automatic
     
  3. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    i have been taking pictures in manual mode.
     
  4. Hikari

    Hikari Mu-43 All-Pro

    Nov 26, 2010
    Is there a discrepancy between the live view and the image? Are you photographing a high key scene such as snow? Can you post an image.

    BTW, you have not set exposure compensation by accident?
     
  5. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    when i look at the lcd and the scene im picturing, it looks correct, its just when i take the shot, it always looks underexposed if i have set the shot as per the light meter, this is only an issue with the panny and not with the oly.
     
  6. Alanroseman

    Alanroseman Super Moderator Emeritus

    Dec 21, 2010
    New England
    Set the camera to full auto and take a picture.

    That will eliminate the chance that you've made some inadvertent exposure compensation controls.
     
    • Like Like x 1
  7. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    it does seem better in full auto, i must be the problem which is a relief (i think!)
     
  8. grebeman

    grebeman Mu-43 All-Pro

    Mar 13, 2010
    South Brent, south Devon (UK)
    Barrie
    I think I'm right in saying that the image seen on the lcd is in fact a jpeg generated by the camera and is affected by the settings you have for the in camera jpeg. Are you comparing the lcd image with a raw file output from your camera?
    You might find the following link of some help Settings for an Accurate Histogram

    Barrie
     
    • Like Like x 2
  9. Alanroseman

    Alanroseman Super Moderator Emeritus

    Dec 21, 2010
    New England
    Awesome....

    Glad we could help.
     
  10. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    thanks guys, i will look forward to having a play around again tomorrow., i appreciate the help.
     
    • Like Like x 1
  11. Pelao

    Pelao Mu-43 Top Veteran

    959
    Feb 3, 2010
    Ontario, Canada
    Do you shoot with your lcd showing a live histogram? It can really help with exposure.
     
  12. sheepsteeth

    sheepsteeth Mu-43 Regular

    46
    Dec 29, 2010
    Kent, UK
    i dont as it happens, i will give it a go and see if i can make sense of that too, tell you what, the more im learning, the more i seem to need to learn!!

    thanks again though, its nice to be able to ask simple questions.
     
  13. Fiddler

    Fiddler Mu-43 Veteran

    Thanks for the link - good info.
     
    • Like Like x 1
  14. tachikoma

    tachikoma Mu-43 Rookie

    11
    Feb 14, 2010
    Vancouver
    Jason
    Perhaps try changing the metering

    When I shoot with the 20mm on a G1 body, I usually use aperture priority but found the pictures (in jpeg) usually underexposed compared to what I saw on the viewfinder especially in low ambient lighting conditions. By switching the G1's metering to spot metering my pictures are now much closer to what I see in the viewfinder.