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Thread: 'unknown shadows'.. any advise what's that?

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    Default 'unknown shadows'.. any advise what's that?

    Hi, I took this pic recently at 250.0mm. The bird seems to be looking for something inside the bin, but there seems to be some kind of white 'shadows' or something (don't know what it is?) as indicated by the arrows. Anyone here can advise what that 'shadows' are, how to avoid it in the future and, anyway to get rid of them? Thanks in advance.


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    Default Re: 'unknown shadows'.. any advise what's that?

    hi, that thing doesn't look like a shadow to me eh. More like some kind of object that is out of focus.

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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by lenson View Post
    hi, that thing doesn't look like a shadow to me eh. More like some kind of object that is out of focus.
    Out of focus? hmm... maybe you are right, but the entire pic is pretty clear. Do you know how it happens and how to avoid in the future?

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    Default Re: 'unknown shadows'.. any advise what's that?

    you only show one photo, hard to analyze what is that.
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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by catchlights View Post
    you only show one photo, hard to analyze what is that.
    I only take 1 pic of this bird

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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by engta View Post
    I only take 1 pic of this bird
    uh
    it's probably a flat bench further in the background.
    that's why it's out of focus .

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    Moderator catchlights's Avatar
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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by mattlock View Post
    uh
    it's probably a flat bench further in the background.
    that's why it's out of focus .
    agree with that.

    to TS, if you only have one photo, the best way is to go back there, stand at the spot where yuo took this photo, see what is behind this dust bin.
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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by engta View Post
    Out of focus? hmm... maybe you are right, but the entire pic is pretty clear. Do you know how it happens and how to avoid in the future?
    Yeah, if its really an out of focus object, the best way i'd do is to shift my cam so that it's not in the picture. And since you're shooting at 250mm it should be hidden behind the bin if you move a little lower.

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    Default Re: 'unknown shadows'.. any advise what's that?

    the 'shadows' are double images if i am right. just look at 2 othe dots above tohe bird's tail & another 2 dots where ur [???] is. likely caused due to camera shake, being more pronounced on the left.

    either ncrease the shutter speed or use tripod for such shoots. but seems like its a 'grab shoot' so rule out tripod to respond faster.
    Last edited by sORe-EyEz; 15th December 2008 at 01:40 PM.

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    Senior Member sammy888's Avatar
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    Default Re: 'unknown shadows'.. any advise what's that?

    You shot this picture using your D70s with a 18-250mm zoom. Which you use it at it's furthest focal length of 250mm. And your Fstop is 6.3 at 1/400 of a second. I would say it is a depth of field situation. Anything that is not within the distance of the bird and dustbin ....far to the front or back of the subject will be pretty blur to some degree. The further away or too far front of your focused subject will get more and more blurred. Could be a bench, some white sheeting or big flat panel of some sort resting against a wall in the background...etc.

    If you notice also that just the front cornet of the dustbin...so close to the bird, it is already blurring quite a bit..imagine futher forward or further back. Your depth of field is really very shallow for this shot thus you get that effect of something far back in the back ground.
    Last edited by sammy888; 15th December 2008 at 01:44 PM.

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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by engta View Post
    Hi, I took this pic recently at 250.0mm. The bird seems to be looking for something inside the bin, but there seems to be some kind of white 'shadows' or something (don't know what it is?) as indicated by the arrows. Anyone here can advise what that 'shadows' are
    I think it's the painted wall in the background, which is dark grey at the top, has a lighter gray horizontal stripe, and is brown below that. You can see the pattern on the right edge of the picture appearing from behind the bin.

    Edit: may also be something else than a wall, e.g. asphalt/kerb/red brick flooring.
    Last edited by LittleWolf; 15th December 2008 at 02:31 PM.

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    Default Re: 'unknown shadows'.. any advise what's that?

    Thanks all for the advises, I appreciate it.

    I went back to the spot and realised it's actually a bench behind the bin.. didn't notice it while taking the picture yesterday. If I walk further away back, the bench will be out of sight.

    For some reasons, I do like this picture. Is there any way I can get rid of the bench sight out of the picture, and replace it with the background grey colour? Say using Capture NX or photoshop?

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    Senior Member sammy888's Avatar
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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by engta View Post
    thanks all for the advises, i appreciate it.

    I went back to the spot and realised it's actually a bench behind the bin.. Didn't notice it while taking the picture yesterday. If i walk further away back, the bench will be out of sight.

    For some reasons, i do like this picture. Is there any way i can get rid of the bench sight out of the picture, and replace it with the background grey colour? Say using capture nx or photoshop?
    photoshop.

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    Default Re: 'unknown shadows'.. any advise what's that?

    Quote Originally Posted by sammy888 View Post
    photoshop.
    ok, shall try.. thanks.

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