Page 3 of 4 FirstFirst 1234 LastLast
Results 41 to 60 of 64

Thread: Exposure doubts

  1. #41

    Default Re: Exposure doubts

    so i think is evaluative metering...my time is about the same as you..but result yet so different haha...
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

  2. #42
    Senior Member Diavonex's Avatar
    Join Date
    Sep 2008
    Location
    Admiralty
    Posts
    3,641

    Default Re: Exposure doubts

    Quote Originally Posted by rysouke View Post
    so i think is evaluative metering...my time is about the same as you..but result yet so different haha...
    Your pictures have more sky, that can throw things out a little.

    If you use center-weighted on that day, things would have been better.

  3. #43

    Default Re: Exposure doubts

    erm..ok i will try again some day..
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

  4. #44
    Senior Member Diavonex's Avatar
    Join Date
    Sep 2008
    Location
    Admiralty
    Posts
    3,641

    Default Re: Exposure doubts

    Quote Originally Posted by rysouke View Post
    erm..ok i will try again some day..
    If the sun is nice and bright, don't use ISO 200; if you notice I was using ISO 80.

    The weather (lighting) was in my favour.

  5. #45
    Member
    Join Date
    Aug 2008
    Location
    here
    Posts
    1,350

    Default Re: Exposure doubts

    Quote Originally Posted by aspenx View Post
    It's a common problem with entry level Canon models.

    You could change your metering mode to point or centre-averaging and meter the "cliff" with -0.3eV compensation.
    Quote Originally Posted by aspenx View Post
    Higher grade cameras have more intelligent evaluative metering systems.
    BUT they are not entirely fool-proof either.

    The suggestions so far work for all cameras since it's just about getting the right settings that you want manually or with compensation.
    Quote Originally Posted by night86mare View Post
    metering being tricked is not just common to entry level canon models. it applies to every brand, and every camera. from the lowly entry level cameras to the expensive d3s, unless you are adept with using spot metering or guestimating correct compensation, you will face this problem, always.
    I think I kinda made myself clear with the parts in bold.

    Matrix metering did become more accurate for me when I upgraded from the D40 to D200 anyways.

  6. #46

    Default Re: Exposure doubts

    Learn




    the




    basics




    of




    light




    and




    exposure.




    Then




    learn




    HDR




    and




    how




    to




    produce




    lovely




    radio




    active




    works!





  7. #47
    Member
    Join Date
    May 2008
    Location
    East
    Posts
    293

    Default Re: Exposure doubts

    Quote Originally Posted by rysouke View Post
    so i think is evaluative metering...my time is about the same as you..but result yet so different haha...
    Need to understand the basic of exposure,or else the more you ask the more you get confuse.

    Need to understand also the different between the CPL and ND filter, not just any how put them on just because you want a better picture without knowing why.

    Our eyes have a better dynamic range and can see 12 stops of light, for camera it sees only 5 stops. The timing of when you take the picture is important. On a nice day where the blue sky , mountain and tree falls within the 5 stops of the camera dynamic range, using the matrix mode is ok and picture come out perfect. Don't just simple follow because people taken a better photo with this mode. The time when you took the photo may not be a good time, because when you took the mid tone of the tree and end up the sky is over exposed, either you go back to take the photo again on a different time or use the spot metering mode to find out how many stops the sky is over exposed and compensate that with the appropriate ND filter (not CPL !!!), or if you do not have the ND filter then try shooting with HDR with one with good details on the sky, one with good details on the tree etc and combine them together with the Photoshop. In your case, ND filter is not good to use as it is not a horizontal split.


    Check to see whether you have a D-light compensate turns on, and also need to improve your PP skill.



    I did this with your jpeg, RAW will provide a better result.
    Last edited by kutten; 18th April 2010 at 11:56 PM.

  8. #48
    Member
    Join Date
    Feb 2009
    Location
    Bukit Batok, Singapore
    Posts
    314

    Default Re: Exposure doubts

    Got my slides processed today

    Here's something for comparison:

    1) shot around 3-4pm
    2) Sunny 16 condition
    3) Spot meter the sky
    4) Slide film (i.e. similar dynamic range to digital)
    5) No adjustments except for levels


  9. #49
    Member
    Join Date
    May 2008
    Location
    East
    Posts
    293

    Default Re: Exposure doubts

    Quote Originally Posted by kaixiang View Post
    Got my slides processed today

    Here's something for comparison:

    1) shot around 3-4pm
    2) Sunny 16 condition
    3) Spot meter the sky
    4) Slide film (i.e. similar dynamic range to digital)
    5) No adjustments except for levels

    not bad except that the trees are slightly under expose. All details are there. Are you applying Sunny 16 rule while spot metering at the sky ?

  10. #50
    Member
    Join Date
    Feb 2009
    Location
    Bukit Batok, Singapore
    Posts
    314

    Default Re: Exposure doubts

    Quote Originally Posted by kutten View Post
    not bad except that the trees are slightly under expose. All details are there. Are you applying Sunny 16 rule while spot metering at the sky ?
    I was quite sure of the exposure actually. Spot meter the sky to confirm. I got ISO 100, f/8, 1/500s which matched my guess.

    Personally I think the trees are fine. The one you post processed looks 'radioactive green' to me. It might just be the calibration of my monitor though

    Edit: Looking at this again, my color looks a bit off also. The vegetation has a slight blue cast which is probably from the sky.
    Last edited by kaixiang; 19th April 2010 at 11:56 PM.

  11. #51
    Member
    Join Date
    May 2008
    Location
    East
    Posts
    293

    Default Re: Exposure doubts

    Quote Originally Posted by kaixiang View Post
    I was quite sure of the exposure actually. Spot meter the sky to confirm. I got ISO 100, f/8, 1/500s which matched my guess.

    Personally I think the trees are fine. The one you post processed looks 'radioactive green' to me. It might just be the calibration of my monitor though
    Nothing wrong with your screen, when I open up the same thread in a different monitor, I realised this problem. My monitor was set to lowest brightness setting.

  12. #52
    Member
    Join Date
    Feb 2009
    Location
    Bukit Batok, Singapore
    Posts
    314

    Default Re: Exposure doubts

    Quote Originally Posted by kutten View Post
    Nothing wrong with your screen, when I open up the same thread in a different monitor, I realised this problem. My monitor was set to lowest brightness setting.


    I got the same habit. Use the computer in the dark and drop the brightness...

  13. #53

    Default Re: Exposure doubts

    Quote Originally Posted by kutten View Post
    not bad except that the trees are slightly under expose. All details are there. Are you applying Sunny 16 rule while spot metering at the sky ?
    that really nice..Sunny 16 rule what does it mean??
    Last edited by rysouke; 20th April 2010 at 09:59 PM.
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

  14. #54
    Member
    Join Date
    May 2008
    Location
    East
    Posts
    293

    Default Re: Exposure doubts

    Quote Originally Posted by rysouke View Post
    that really nice..Sunny 16 rule what does it mean??
    http://www.digitalpicturezone.com/di...n-photography/


    The equivalencies for 1/125th @ f/16 (ISO 100) are:

    1/30th @ f/32
    1/60th @ f/22
    1/125th @ f/16 <--- Sunny f16 on sunny day.
    1/250th @ f/11
    1/500th @ f/8
    1/1000th @ f/5.6
    1/2000th @ f4

    Kaixiang increases the shutter speed from 1/125 to 1/500 (2 stops),therefore aperture f/16 to f/8.

    want more explanation, google "sunny 16 rule" to see how to apply on cloudy day also.

  15. #55

    Default Re: Exposure doubts

    Oh i see...i learn something new again...
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

  16. #56
    Member
    Join Date
    Feb 2009
    Location
    Bukit Batok, Singapore
    Posts
    314

    Default Re: Exposure doubts

    Quote Originally Posted by rysouke View Post
    Oh i see...i learn something new again...
    Another tip is that, the key to using this is to look at the shadows and not the sky. If the shadows are sharp and distinct, Sunny 16 works. If the shadows have a fuzzy edge, open up the exposure by 1 stop. If there are no shadows, open up another 1-2 stops. I didn't get the Sunny vs. Cloudy thing when I first started out and looked up at the sky to gauge exposure

  17. #57

    Default Re: Exposure doubts

    Do you mean the shadow from the sky??? Abit dont understand...
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

  18. #58
    Member
    Join Date
    Feb 2009
    Location
    Bukit Batok, Singapore
    Posts
    314

    Default Re: Exposure doubts

    The shadow on the ground. Your own shadow, trees, buildings etc.

    You don't use the sky to gauge exposure because the cloud cover doesn't tell you much. For example, on the day I took the photo, it was both 'Sunny' but with clouds in the sky at the same time. I used ISO 100, f/8, 1/500s because the Sun was out.

    2 minutes later, the cloud actually covered the clouds, changing the condition to 'cloudy' although the sky looked almost exactly the same. If I were to take the same photo at that time, I would have to use ISO 100, f/8, 1/250s instead or else the photo would be underexposed. I know the difference because the shadows on the ground are not sharp and distinct any more and beginning to look fuzzy or soft around the edges.

    This is a good link to read: http://www.fredparker.com/ultexp1.htm

  19. #59

    Default Re: Exposure doubts

    Try to use manual mode & play around with spot, centre & matrix metering on the same picture. U should have a better understanding of exposure by then.

    Spot metering is good when your concern is solely on a specific subject exposure.
    Matrix is the average of exposure on a picture which might not be what you want sometimes so one need to play around with the setting in the camera.

    Correct me if I am wrong. I am just a hobbyist.

  20. #60

    Default Re: Exposure doubts

    Quote Originally Posted by kaixiang View Post
    The shadow on the ground. Your own shadow, trees, buildings etc.

    You don't use the sky to gauge exposure because the cloud cover doesn't tell you much. For example, on the day I took the photo, it was both 'Sunny' but with clouds in the sky at the same time. I used ISO 100, f/8, 1/500s because the Sun was out.

    2 minutes later, the cloud actually covered the clouds, changing the condition to 'cloudy' although the sky looked almost exactly the same. If I were to take the same photo at that time, I would have to use ISO 100, f/8, 1/250s instead or else the photo would be underexposed. I know the difference because the shadows on the ground are not sharp and distinct any more and beginning to look fuzzy or soft around the edges.

    This is a good link to read: http://www.fredparker.com/ultexp1.htm

    So you know that the cloud is covered the cloud because you look at the shadow of your own and the ground and trees as it is not obvious anymore..am i right to say that?
    500D/50mm f1.4/90mm macro/17-55mm/EX580 II
    My flickr

Page 3 of 4 FirstFirst 1234 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •