Quote:
Originally Posted by Alphamale
What a picky asshole!
I'm kidding, but I do have a question as to how you determine the horizon as to be 100% straight.
I know in PS you use the ruler, find something that is supposed to be a straight edge, draw line --> Rotate Canvas --> Arbitrary. But how do you ever know it's truly truly straight? I sometimes have doubts.
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It can be tricky with shorelines because the shoreline itself isn't usually straight.
That said, there are often other visual cues to go from. Trees are good - they're usually very close to perfectly vertical (especially evergreens). Flagpoles, buildings, things that are constructed level in the first place - use a vertical line instead of horizontal. With still water, you can usually work from a reflection as well. If the horizon is curved because of barrel or pincushion distortion, like you'll get with wider lenses, you can just use the endpoints of it for your ruler.