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Lenses
Wide-Angle
Wide Angle Focal lengths and Perspective
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<blockquote data-quote="hark" data-source="post: 229339" data-attributes="member: 13196"><p>With a wide angle lens, the closer you are to your subject the more you will notice perspective distortion. Think of the photos you've seen of pets where their noses are really exaggerated. Those tend to be shot really close. And as for angle, the wider it is, perspective distortion will be more noticeable. Think about really tall skyscrapers and how the lines of a building will converge when you point the lens upwards (referencing <em>angle</em> that you mentioned) plus the buildings look overly tall compared to reality. Plus the wider a lens, the further back you push the farthest part of your subject. That's why pet noses look so close and huge while their heads look smaller than they really are and why the height of buildings is exaggerated when shot with a wide angle lens.</p><p></p><p>Since you've picked two lenses that are so close at their widest (17mm vs 18mm), there won't be a huge amount of difference between them when shooting wide. You will be able to see the perspective distortion through the viewfinder. I'd suggest reading up on some lens tests to see which one is better as I am not familiar with how well either one is rated, but functionality wise, the 17-55mm covers a lot more than the 18-35mm. </p><p></p><p>If you are referring to the 18-35mm G lens which is full frame, it is rated very well. I believe the other lens you listed is a DX lens. My interest was always with FX lenses, and I'm glad to have picked all but one of my lenses as FX simply because of finally switching from DX to FX. Please be aware there is also an 18-35mm D lens (not a G lens) which isn't rated nearly as well as the newer G version.</p></blockquote><p></p>
[QUOTE="hark, post: 229339, member: 13196"] With a wide angle lens, the closer you are to your subject the more you will notice perspective distortion. Think of the photos you've seen of pets where their noses are really exaggerated. Those tend to be shot really close. And as for angle, the wider it is, perspective distortion will be more noticeable. Think about really tall skyscrapers and how the lines of a building will converge when you point the lens upwards (referencing [I]angle[/I] that you mentioned) plus the buildings look overly tall compared to reality. Plus the wider a lens, the further back you push the farthest part of your subject. That's why pet noses look so close and huge while their heads look smaller than they really are and why the height of buildings is exaggerated when shot with a wide angle lens. Since you've picked two lenses that are so close at their widest (17mm vs 18mm), there won't be a huge amount of difference between them when shooting wide. You will be able to see the perspective distortion through the viewfinder. I'd suggest reading up on some lens tests to see which one is better as I am not familiar with how well either one is rated, but functionality wise, the 17-55mm covers a lot more than the 18-35mm. If you are referring to the 18-35mm G lens which is full frame, it is rated very well. I believe the other lens you listed is a DX lens. My interest was always with FX lenses, and I'm glad to have picked all but one of my lenses as FX simply because of finally switching from DX to FX. Please be aware there is also an 18-35mm D lens (not a G lens) which isn't rated nearly as well as the newer G version. [/QUOTE]
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Wide Angle Focal lengths and Perspective
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