Re: New Rebel & EF 11-24 f/4L USM Coming Shortly
Well that can be corrected by 'reverse' tilting the camera, and, as you well know, the shorter the focal length the less angular tilt you need for the same effect, if Canon stuck to their traditional 8º-8.5º of tilt you would have the same effect as over 17º of tilt on the 24mm, that leaves plenty of tilt to do the correction.
I understood the convergence to be a function of the pretty extreme retrofocus designs of the 17 and 24 and not an intrinsic function of tilt/swing, certainly the 17 displays the effect much more than the 24 and an 11mm would be even worse.
keithcooper said:Since the slightest tilt up or down of the lens (at 11mm) is going to show massively converging/diverging verticals, then using such a lens is going to take some real care and thought about what the images are for and how they are to be cropped or even adjusted in PS.
Well that can be corrected by 'reverse' tilting the camera, and, as you well know, the shorter the focal length the less angular tilt you need for the same effect, if Canon stuck to their traditional 8º-8.5º of tilt you would have the same effect as over 17º of tilt on the 24mm, that leaves plenty of tilt to do the correction.
I understood the convergence to be a function of the pretty extreme retrofocus designs of the 17 and 24 and not an intrinsic function of tilt/swing, certainly the 17 displays the effect much more than the 24 and an 11mm would be even worse.
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