Pentax-DA* 55mm F1.4 Review
Image Quailty: Distortion
For this distortion test, we found an evenly lit interesting brick wall that had regularly spaced joints. With the camera on a tripod, parallel and level with the brick wall, a series of shots were taken. We wanted to see how well the lens was designed to eliminate distortion.
Verdict
Not surprisingly the lens did not exhibit any measurable distortion. If the lens had barrel distortion, it would have caused the lines to curve or bulge out ward. If it had pincushion distortion, it would have caused the lines to curve inward.
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