Leaning Towers
Sep 22, 2014 07:39:49 #
Sep 22, 2014 08:10:15 #
Bill, He said "Pisa" not "Picasa". I think that one went right over your head. <g> ........ Coot
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.
Sep 22, 2014 09:07:45 #
Don Craig wrote:
It's an odd twist, my specific question is, what causes this phenomena?
It's an odd twist, my specific question is, what causes this phenomena?
If you are shooting jpeg there is also a custom setting for your camera that will remove much of this lens distortion. You need to turn it on. I think it is one of the custom settings but it might be in shooting.
Nikon updates the file from time to time for new lenses. But your file should be good enough for your lens because your camera model is relatively new.
Sep 22, 2014 09:35:10 #
MtnMan wrote:
If you are shooting jpeg there is also a custom setting for your camera that will remove much of this lens distortion. You need to turn it on. I think it is one of the custom settings but it might be in shooting.
Nikon updates the file from time to time for new lenses. But your file should be good enough for your lens because your camera model is relatively new.
Nikon updates the file from time to time for new lenses. But your file should be good enough for your lens because your camera model is relatively new.
Did not know that, will have to look for it. Thanks.
Sep 22, 2014 10:21:35 #
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.
Bill, I am confused here. Considering the perspective of the building, the vanishing points, what do you do to level. What part of the shot are you going to use to level the shot. I understand getting the vertical elements right, but need some guidance on leveling. Please help me understand. Thanks Doug.
Sep 22, 2014 11:32:50 #
DWHJR wrote:
Bill, I am confused here. Considering the perspective of the building, the vanishing points, what do you do to level. What part of the shot are you going to use to level the shot. I understand getting the vertical elements right, but need some guidance on leveling. Please help me understand. Thanks Doug.
One thing to remember here, that street slopes downhill to where I'm standing.
Sep 22, 2014 12:38:32 #
Sep 22, 2014 13:01:52 #
Sep 22, 2014 13:28:14 #
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.
It does not look out of level to me.
Sep 22, 2014 13:45:48 #
Sep 22, 2014 14:42:49 #
DWHJR wrote:
Bill, I am confused here. Considering the perspective of the building, the vanishing points, what do you do to level. What part of the shot are you going to use to level the shot. I understand getting the vertical elements right, but need some guidance on leveling. Please help me understand. Thanks Doug.
In photo shop, bring up your rulers. I then dragged out a guide bar from the side (with in the rulers) and put that dead center of photo. I then went to the crop tool, which will also allow me to straighten the photo. In this Photo I used the corner of the tower, which was just a tad to the right of the center line. You can also use the lamp pole to the left to help guid you.
It's about 1.5 degrees CW out. Give or take a few 10's
Sep 22, 2014 14:53:17 #
Lazy Old Coot wrote:
Bill, He said "Pisa" not "Picasa". I think that one went right over your head. <g> ........ Coot
I guess me reading is getting as bad as my spelling, sorry.
Sep 22, 2014 15:51:11 #
sub006 wrote:
The picture didn't bother me, it has a nice "Cinerama-light" look!
It didn't bother me either, originally. I probably looked at it ten times before I noticed it...and then it bothered me.
:-D I thought it would be something new and interesting for us to chew on besides "what's the best lens" question.
Sep 22, 2014 18:34:00 #
Don Craig wrote:
This is a picture of the old D&H train station... (show quote)
Don, this is a common issue, with wide angle lenses especially. If the lens is pointed in an upward angle, tall structures will appear to converge towards the top. This is your leaning towers issue.
The issue can be minimized by keeping he axis of the lens parallel to the ground, using a shift/tilt lens, using a view camera, or correcting it in post processing. Photoshop does have a crop tool that will fix the issue.
--Bob
Sep 22, 2014 19:33:06 #
I've shot wide angle and fish eye before, I'm familiar with distortions and leaning buildings. I often do it for an artsy effect.
However, what got me in this instance was the one building leaning in two different directions, inwards and outwards. That was curious. :)
However, what got me in this instance was the one building leaning in two different directions, inwards and outwards. That was curious. :)
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