Glennstewart From Australia, joined Jun 2003, 1124 posts, RR: 54
Reply 1, posted (8 years 11 months 1 week 5 days 9 hours ago) and read 1414 times:
This is understandably a common question; and a completely relevant one.
You've suggested the most common and reliable method: rotation with the use of vertical structures (e.g. fences, buildings, light poles). This thankfully works for the majority of shots.
It seems every airport has a poorly leveled section in which even rotating with the above rule seems to produce weird looking shots.
My rules for editing go something like this:
1. Rotate using verticals that are actually 90 degrees (we all know that airport light poles aren't always planted straight)
2. If in doubt, rotate until it "feels right" and "looks right".
Your second shot for example of the America West CRJ looks wrong. You could probably rotate using the fence in the background, but even then it might still look wrong.
It's not an official screening recommendation, but keep rotating bit by bit in cases like this until you get to a point where you know it's right. Oh.... make sure you reverse each rotation, because rotation upon rotation will only add error to the shot.
Respected users.... If my replies are useful, then by all means...
JayDavis From United States of America, joined Jan 2001, 2000 posts, RR: 15
Reply 2, posted (8 years 11 months 1 week 5 days 7 hours ago) and read 1400 times:
Thanks for the reply. I don't understand your last comments though.
Make sure you reverse each rotation, because rotation upon rotation will only add error to the shot?
What do you mean with this comment? I'm totally confused by it.
As for the other tips, that is my problem. It just seems some shots, no matter how hard you try, you just can't get them to "look level".........this spot at DFW poses a very hard choice each and every time you shoot there.
I think Glenn meant, before doing next trial rotation, you should make sure you have rolled back (or reversed) the previous rotation you made; or in other words, in simple, the image should only be rotated once from the original state, and recursive rotations (rotation upon rotation) will add error to the shot.
E.g., you did CW rotation 1.0 to a photo, and felt it had been done too much. You should roll back that rotation; and try CW rotation 0.7 and see if it's good. If not, you should continue above steps. But you shouldn't rotate CW 1.0, then CCW 0.3, etc.
ZSOFN From United Kingdom, joined Jun 2005, 1415 posts, RR: 5
Reply 6, posted (8 years 11 months 1 week 2 days 18 hours ago) and read 1327 times:
The way I do it when there's no obvious levelling reference in the photo is imagine I'm balancing the camera on a pole at the angle at which I took the shot. If, as I look at it, I imagine it toppling over to one side, then I need to correct it accordingly.
I would say your first shot needs some CCW rotation and the 2nd shot some CW.