Other options to straighten with post-processing Or, if some degree of slant is inevitable, it may be better to make it look deliberate than to leave it on the fuzzy edge of straight and slanted. Sometimes this can make an image more dramatic.
Of course, another strategy is simply to enhance the effect.As long as your camera is level, the vertical lines will be perfectly straight. To use one, level your camera, and then shift the lens up to get the framing you want for your subject. These lenses have the added benefit of being extremely sharp in the corners (unless you have to shift too far), which is often a nice plus. These lenses are expensive and manual-focus only, but they are often the best or only way to get straight lines in the camera. Canon users are lucky, as Canon also offers a 17mm tilt-shift lens (I really wish Nikon had one). I use all of Nikon’s “ PC-E” lenses and love them, especially the 24 and 45mm. This will change the relative size of foreground/background elements, so be careful not to lose the intimacy and mood of the shoot simply to get a technically correct vertical line.
One way to achieve this, or at least get closer to level, is to step further back from your subject and use a longer lens. This may mean using a different crop/composition, or shooting from a different location.
For converging horizontals, this means shooting with the lens pointed directly at the primary face of the subject. For converging verticals, this means shooting with the camera perfectly level. Shoot with the camera’s sensor plane parallel to the surface in question.There are several strategies you can use to get things right in camera: Any time you stretch pixels, you are loosing some quality as well as cropping out part of the image. It’s great that we can fix converging verticals in post, but there are good reasons to get it right in the camera.
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