Composition - Horizontal Line

Hi, this has been always a mystery to me and i'm sure not for others.

In terms of composition, I was advised by a friend of mine to always pay particular attention to horizontal and vertical line when taking a shot.

This morning I took a shot bricks of wall in front of my house. Everytime I tried to align the bottom horizontal line, the top bits didn't align. The same thing when I tried to align the top horizontal line, the bottom bits didn't align. Somehow it frustrates me just to know that I couldn't even make a simple shot straight.

Since the issue shouldn't be with the wall, is the issue is with the angle of shot that I made? Or is there any fundamental problem that you may think I have?

I look forward hearing from you guys. Thanks

Post an image that you've taken of said wall that shows what you are talking about so we know for certain what you are asking.
My guess is that you were at an angle to the wall and as a result, the simple laws of perspective is your problem.

You're likely seeing lens distortion. This can be corrected with software such as Adobe Camera Raw and Photoshop.

Was your camera level with the wall? If you were shooting at an angle, you won't get perfectly symmetrical lines. Also, some lenses tend to have more distortion than others.

Would have to see some sample shots to see what you are talking about though...

http://www.photozone.d​e …zeiss_zf_21_28_​5d?start=1

Lens distortion, angle of the shot, unlevel brick wall.. Could be a number of reasons

Guys, I thought I was level, I faced the wall 90 degree.

HOSTED PHOTO
please log in to view hosted photos in full size.

Bottom horizontal looks ok, but getting to the top, it's a bit skewed

kakegawa wrote in post #12617897
Guys, I thought I was level, I faced the wall 90 degree.

Look like you were level but at an angle relative to the wall.

You were at an angle to the wall, it looks like. The right half of the image is out of focus, which would be expected if the wall was not aligned with the sensor.

Probably some distortion, to prove whether it is distortion, try another lens. Would it be possible to tell me what lens you are using?

The TS-E variations will correct that issue with enough liberal application of $$$

You're "Keystoned" which as Nick pointed out means you were not squared up to the wall.

Stop shooting brick walls and do some real photography

kakegawa wrote in post #12617897
Guys, I thought I was level, I faced the wall 90 degree.

If you had, wouldn't you expect to see the same sharpness at the right as at the left?
You have to remember to not tilt the camera, & to keep the back vertical (Parallel to the wall) to avoid keystoning.
What is Keystoning