A
problem that needs to be contended with if you own a
Rangefinder or
Twin Lens Reflex camera. Namely - your
eye is viewing the
scene from a different
point of view from the
lens. You can
simulate the problem of paralax by closing one eye and
pretending that the closed eye is your camera's lens. Now
swap which eye is closed and
watch the resulting '
jump' that occurs as your visual
perspective changes. This can result in all sorts of
minor changes and can sometimes be used as an
excellent excuse for why did did a
terrible job of composing that last
photo...
"Damn Rangefinders, if I had a real camera I never would have cut off Lucy's head!"
Sounds nice and all, but for the most part the actual alteration of the image is very slight unless you're shooting a subject that is closer than two feet.
"But what if I wanna shoot something closer that's right in front of my nose?" you ask...
Well, if you own a camera that suffers from paralax:
don't. It just wasn't made to do it. Go buy yourself a
Single Lens Reflex, or better yet, a
View Camera.