 John |
Straight Lines when photographing Books I use a Sony Mavica MVC-FD7 - a rather old Digital Camera. When I photograph books the edges of the books are not straight - they buldge out. They books look funny - which is not good.
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Ariel Lepor |
This is known as barrel distortion, and it occurs when using a wide angle. It affects various cameras in different amounts. My Fujifilm S5200 isn't too bad. Digital Camera Resource mentions this distortion in their reviews, so check there. Anyhow, you can correct this distortion using software. For example, Helicon Filter can reduce the distortion.
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John H. Siskin |
Hi John, Ariel is right this is barrel distortion. It is a characteristic of the lens not the camera. You are more likely to see it on a wide angle zoom than any other lens. The lens least likely to show this problem is a fixed focus macro lens. I would consider either a Canon or Nikon DSLR with a macro lens probably around 60mm. Unfortunately this is not inexpensive. Thanks, John Siskin
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Mike Rubin |
I agree with Ariel about software, PSE 5 also has a "camera distortion" option which is very easy to use and is another short term solution until you can take John's suggestion about a macro lens.
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Christopher A. Vedros |
John, Another way to "correct" this problem is to prevent it when taking the picture. As the others have stated, the curved lines are due to barrel distortion. Barrel distortion is common with many wide angle lenses, and gets worse as you get closer to your subject. Better-quality wide angle lenses have special elements in them to correct this problem. Short of getting a new camera or lens, you can minimize the problem by backing up a step or two from your subject and zooming in instead. The lines will be straighter when you use a longer focal-length lens. Chris A. Vedros
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John |
Thanks everyone ! I bought a Samsung A503 and so far the Barrel Distortion is not nearly as bad. I may try Helicon, too.
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W. |
Like Chris suggested: don't 'repair' barrel distortion in PP. Prevent it from occurring in the first place: zoom out slowly until you see straight lines (step back if you have to!). Then expose.
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