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Old 03-19-2010, 06:46 AM
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Question Why is this happening?

Hi, I was wondering if someone can help me. I took this picture in our trip to Agra a month ago, and some times is not possible for me to be complety aware of my shot, because most of the time we're short of time, I have a baby, so in our vacations I try to get nice shots, but it I've to be really quick, and in this particular situation, all the people arround and the heat did't help.
I got the same problem in different shots, like a dark circle arround, I can imagine is some kind of lens aberration, but I would like to know why this happen so I can avoid it nex time.
Thanks

DSC_0361

Aperture f5/6
shutter speed 1/125
ISO Auto 140
Scece Mode Auto
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Old 03-19-2010, 07:36 AM
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if you're using a lenshood, it must be too long. or if you are using a wide angle attachment and have it at the widest, sometimes it causes vignetting.
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Old 03-19-2010, 08:47 AM
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There's nothing wrong with your lens - what you are seeing is the edge of your filter or lens hood. If you take these off when you're using the lens at its wide end the problem should disappear.

Thanks for posting this one, shots of the Taj never cease to amaze me, it is a stunningly beautiful building, truly worthy of it "Wonder of the World" status. The last time I was there I learnt that the minarets actually lean out at the top - designed this way for two reasons, firstly to ensure that the minarets fall away from the mausoleum if there is an earthquake, and, secondly, it corrects the perspective when you look up at (or take photos of) the Taj from the gardens. Amazing!

Images from Agra bring back good and bad memories for me - good because, like the rest of India, I found Agra a fascinating and friendly city, and bad because it is the only place I ever got sick in more than 12 months travelling around India. The culprit was a vege-burger (!). I never eat "foreign" food when I'm overseas anymore.
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Old 03-19-2010, 11:41 AM
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What kind of camera and lens (and lenshood?) are you using. The answer is probably around there.

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Old 03-19-2010, 11:45 AM
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Quote:
Originally Posted by CaptainNH View Post
There's nothing wrong with your lens - what you are seeing is the edge of your filter or lens hood. If you take these off when you're using the lens at its wide end the problem should disappear.

Thanks for posting this one, shots of the Taj never cease to amaze me, it is a stunningly beautiful building, truly worthy of it "Wonder of the World" status. The last time I was there I learnt that the minarets actually lean out at the top - designed this way for two reasons, firstly to ensure that the minarets fall away from the mausoleum if there is an earthquake, and, secondly, it corrects the perspective when you look up at (or take photos of) the Taj from the gardens. Amazing!

Images from Agra bring back good and bad memories for me - good because, like the rest of India, I found Agra a fascinating and friendly city, and bad because it is the only place I ever got sick in more than 12 months travelling around India. The culprit was a vege-burger (!). I never eat "foreign" food when I'm overseas anymore.
Yes it's really amazing, and quite impresive when you first cross the main gate. The only problen is the amount of people arround, I'd dreamed about taking the tipical photo of the building and it's reflexion on the water, but it was imposible.
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Old 03-19-2010, 11:47 AM
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I'm using a sigma 18/200 with an UV filter
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Old 03-19-2010, 12:22 PM
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I had a Sigma zoom at one time and had the same issue. Removing the lens hood took care of it. If removing the hood doesn't work, you could try removing the UV filter. I doubt that would be the problem but if it's not the hood, it would be worth a try.

And very nice shot. I like all the people there, they add so much beautiful color to the scene.
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Old 03-19-2010, 01:00 PM
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This is the filter, though it is strange that it would cut this far into the image circle. Is it just ONE filter? The only time i've had issues like this were below 21mm with 2 filters (Circ Pol, UV) at the same time.
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Old 03-19-2010, 01:35 PM
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^ x2

if I stack another filter on the UV and go wide this happens
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Old 03-20-2010, 04:09 AM
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Looks like vignetting from your lens hood, will happen if it is stacked on top of filters...
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