Originally posted by Giklab Wider angle lenses have a more pronounced barrel distortion.
while this is generally true, wider lenses may have more barrel distortion you would likely not notice this in a portrait.
Quote: Why would people shoot portraits with short teles if wide/normal lenses would suffice?
because the perspective of wider lenses tends to do several things that are very unflattering, specifically if subjects are at the edge of the frame, or if the subject has a varying distance to the camera, it is not distortion as such, but often referred to as distortion even though it is just the impact of perspective, and the difference in magnification of the lens as a function of distance to subject. It can make people look very fat, or exaggerate any feature that is closer to the lens, like noses, hands and feet, making them look unnaturally long or big. A tele photo lens, on the other hand tends to flatten images making them look more pleasing
Quote: ! Why do some landscape photogs swear on telephotos? Cause they compress the scene and enlarge distant objects more than near ones creating a better picture than with a wide angle, where distant objects are not magnified as much.
true, unless you want to have foreground and background to emphasize distance Remember there is no rule just techniques
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Remember: 40-60mm lenses are normal because they are. No barrel. No pincushion. The same magnification at all distances.
no because they have the same relitive perspective rendering as what we see. not because of distortion like barrel or pincushion
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PS You wouldn't need to get in somebody's face as much with a 50 than you'd need to with a 28 because you want to make the face the same size on both pics. Therefore you stand back with the 50.
true, in simple terms
image size = subject size x focal length / distance