Leaning Towers
Sep 21, 2014 17:56:33 #
This is a picture of the old D&H train station in Plattsburgh, NY, taken a couple days ago. Looking at it again, I noticed the front tower appears to be leaning forward to the left; but the back pointy-hat tower appears to be leaning backward to the right. They are in fact, if you drag them to the corner of your screen, you'll see it.
This was shot with a Nikon D3200, 18-55 kit lens set at 18mm.
On a monopod at eye level. ISO 100, 1/320 sec, f/9. In Program.
It's an odd twist, my specific question is, what causes this phenomena?
This was shot with a Nikon D3200, 18-55 kit lens set at 18mm.
On a monopod at eye level. ISO 100, 1/320 sec, f/9. In Program.
It's an odd twist, my specific question is, what causes this phenomena?
Sep 21, 2014 17:59:45 #
Sep 21, 2014 18:05:27 #
Rongnongno wrote:
Lens barreling, look it up. Typical of wide angles.
Thanks, will do that.
Sep 21, 2014 18:08:41 #
Don Craig wrote:
This is a picture of the old D&H train station... (show quote)
That 18 mm will do it every time!
You can fix that in PP......you know that right?!
Lens distortion and perspective on wide angle lenses is what it is!
Sep 21, 2014 18:19:41 #
Sep 21, 2014 19:15:44 #
You have two problems in this photo.
The first being it't out of level. The second as mentioned above is prospective. Using and 18 MM or lower will cause fish eyeing or barreling. The Lower you are the more barreling. It's natural. I don't think you will be able to fix perspective in Picasa.
The first being it't out of level. The second as mentioned above is prospective. Using and 18 MM or lower will cause fish eyeing or barreling. The Lower you are the more barreling. It's natural. I don't think you will be able to fix perspective in Picasa.
Sep 21, 2014 19:15:44 #
TucsonCoyote wrote:
That 18 mm will do it every time!
You can fix that in PP......you know that right?!
Lens distortion and perspective on wide angle lenses is what it is!
You can fix that in PP......you know that right?!
Lens distortion and perspective on wide angle lenses is what it is!
I knew there was something like that but never used it. I have PS, I'll find it. Thanks.
Sep 21, 2014 19:18:02 #
Bill Houghton wrote:
You have two problems in this photo.
The first being it't out of level. The second as mentioned above is prospective. Using and 18 MM or lower will cause fish eyeing or barreling. The Lower you are the more barreling. It's natural. I don't think you will be able to fix perspective in Picasa.
The first being it't out of level. The second as mentioned above is prospective. Using and 18 MM or lower will cause fish eyeing or barreling. The Lower you are the more barreling. It's natural. I don't think you will be able to fix perspective in Picasa.
I kind of suspected that since I'm shooting at street level and looking up. Level I can fix, this is the first time I've seen a building tilting in two different directions.
Thanks for the input.
Sep 21, 2014 19:36:42 #
Sep 21, 2014 20:37:50 #
Bill Houghton wrote:
If you want it fix, just say so.
Thanks Bill, I'll take you up on that. I would like to know how you do it.
:wink:
Sep 21, 2014 20:55:33 #
The way I went about it. In CS6.
first I leveled it.
Then I selected all, Edit Image, Transform, then Perspective.
If you have Light Room you can level it, then go to Lens Correction, and select your camera lens or close to it, and dial in the correction.
first I leveled it.
Then I selected all, Edit Image, Transform, then Perspective.
If you have Light Room you can level it, then go to Lens Correction, and select your camera lens or close to it, and dial in the correction.
Sep 21, 2014 22:01:40 #
Wow, thanks Bill that's very cool. I saved it in my file with the original. I have PS7, I looked through the menu, there is a transform option but no perspective. I'll dig around in there some more tomorrow.
I looked up what Rongnongno suggested and found that there is barrel distortion, pincushion distortion and mustache distortion. My education continues.
This building is nearby, I'll shoot it again; back up farther down the street and use a longer lens setting like 35 or 55. I'm curious, I want to see what happens. And I can learn to stop shooting buildings with a wide-angle, unless I want the special effect.
I looked up what Rongnongno suggested and found that there is barrel distortion, pincushion distortion and mustache distortion. My education continues.
This building is nearby, I'll shoot it again; back up farther down the street and use a longer lens setting like 35 or 55. I'm curious, I want to see what happens. And I can learn to stop shooting buildings with a wide-angle, unless I want the special effect.
Sep 21, 2014 22:31:33 #
Lightroom has a lot of cool tools for correcting this sort of thing, as mentioned above. First is correcting for known anomalies of a particular lens. Go to adobe.com and check out their Lightroom tutorials, this changing the perspective of the building trick is a pretty common thing. And, leveling is a no brainer too. Unless you have a tripod and a level on your camera, there is almost no way to hand hold a camera and get a perfectly level picture. Nothing is more disconcerting than a lake or the ocean not being level and it's a simple fix as well. I hope you continue on in learning about post processing. I like it almost as much as trying to get the perfect picture that doesn't need any help (like that's ever going to happen!)
Sep 22, 2014 07:13:50 #
Gentlemen, thank you all very much for your input, especially you Bill for fixing that for me. I learned some new things and I guess it's time to step up to the plate and see what Lightroom is all about.
Have a good day.
Have a good day.
Sep 22, 2014 07:29:53 #
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