If by crooked you are referring to the leaning building effects, then it is a perspective problem that all lenses of the same focal length would exhibit when used from the same position. The only way to avoid it is to shoot from higher up or to use a specialized tilt and shift lens, such as the Canon TS-E 24 mm f/3.5L. You can also correct the shot in PhotoShop. A wider angle lens would exaggerate the effect even more; not solve it..

If you are referencing to the slight barreling, then yes, some lenses are better corrected than others..

Brian A...

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Brian A...

This is natural as stated in the response above. You can correct this to some degree with software. Photoshop has the ability to correct this but I have found that it is not all that easy to do. I use a free utility called ShiftN..

Here is the linkhttp://www.shift-objektiv.de/foto/links.html.

Here is your picture after I ran it through the software. I could have done addtional correction but this was on "auto". It's not perfect but it's a big improvement..

Maddog.

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Olympus E-500, Olympus E-510..

28mm on your camera provides same wide ANGLE of view as 50mm on film slr body. It's just "cental crop" of image..

However it still has 28mm lens distortion.....

Without crooked effect image looks like made with 100mm lens from distance..

I luv crooked buildings. I feel like insect looking up... .

Http://www.stan-pustylnik.smugmug.com..

Thanks Maddog! That one looks nice. I will try that freeware next time...

Stan_P wrote:.

However it still has 28mm lens distortion.....

There is slight barrel distortion, but I don't think that is what you are talking about..

And how about "50mm" on a 1/2.5" sensor camera, which is around 8mm?.

The issue here is perspective. The camera is tilted up. You can see this for yourself, no need for a camera. Just look up at a tall straight-sided office building (like in the picture) and notice how it appears to become narrower as it goes up. Stand right next to the building and look up and it becomes really apparent. That's because the base of the buiding is much closer to you than the top of the building.



The same effect would happen regardless of the chosen focal length..

As for "28mm lens distortion", you are mistaking cause and effect. It is again perspective distortion. You're taking a picture of somebody's face, and you want to fill the frame with it. If you are shooting with a "16mm" (35mm equivalent) lens, you'll need to stand 2 feet away. The distance between the camera, the nose, and the eyes are the nose and the ears, let's call it 6 inches, is quite a significant fraction of 2 feet. Now pop on a 100mm lens and shoot the subject from 12 feet away.



If you still aren't convinced, check here:.

Http://www.dpreview.com/learn/?/Glossary/Optical/Perspective_01.htm.

Without crooked effect image looks like made with 100mm lens fromdistance..

The distance is key....

Seen in a fortune cookie:Fear is the darkroom where negatives are developed..

Excellent comment. I must admit I learned here too!!! http://www.stan-pustylnik.smugmug.com..

US Capitol building shot with:.

210mm lens.

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50mm lens.

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24mm lens.

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Http://www.stan-pustylnik.smugmug.com..

Nickleback wrote:.

The issue here is perspective. The camera is tilted up. You can seethis for yourself, no need for a camera....

The distance is key....

Yes you are right, but in my opinion, the "key" is the camera tilt. Regardless of distance, when the camera is kept horizontal rather than tilted up or down, the effect is removed. The problem of course is that the top of the buildings is then cropped and so on. Special tilt and shift lenses exist for some cameras to help with this, but unless you specialise in architectural shots it's probably easier to use a software adjustment..

I was going to say "software correction" but that would imply this is an error, and it might be a deliberate choice, some of us learn to like and enjoy the effect:.

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Regards,Peter..

Sherwoodpete wrote:.

Nickleback wrote:.

The issue here is perspective. The camera is tilted up. You can seethis for yourself, no need for a camera....

The distance is key....

Yes you are right, but in my opinion, the "key" is the camera tilt.Regardless of distance, when the camera is kept horizontal ratherthan tilted up or down, the effect is removed..

If you shoot a castle up on a hill from far away, you'll be pointing the camera up but you won't get this effect..

How about the combination of distance and tilt is key?.

Seen in a fortune cookie:Fear is the darkroom where negatives are developed..

Nickleback wrote:.

Sherwoodpete wrote:.

Nickleback wrote:.

The issue here is perspective. The camera is tilted up. You can seethis for yourself, no need for a camera....

The distance is key....

Yes you are right, but in my opinion, the "key" is the camera tilt.Regardless of distance, when the camera is kept horizontal ratherthan tilted up or down, the effect is removed..

If you shoot a castle up on a hill from far away, you'll be pointingthe camera up but you won't get this effect..

How about the combination of distance and tilt is key?.

If that hill is high enough you will. Ultimately, the amouint of perspective distortion will depend on how far you need to tilt the camera from a plane level with the building. It won't be as obvious unless you're using a long tele lens to fill the frame or making a very tight crop..

Then too, even when using a view camera/shift lens to correct for distortion, it's usually a good idea to leave at least a small amount of distortion intact. Our brains expect to see some shift in perspective when presented with large tall objects and when it's been removed completely from an image, it can look a little disturbing to the viewer, often without them really knowing why..

'Here, look at the monkey. Look at the silly monkey!'.

Tom Younghttp://www.pbase.com/tyoung/..