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#11
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"Fixing" distortion?
A cut & paste would've had the wrong perspective. The sign removal and some
of the pavement & wall was done with gradient masked vanishing point cloning in PS. The colour was corrected for the ambient temperature and enhanced -- Simon "Alan Browne" wrote in message ... Simon Stanmore wrote: I've never used a fisheye but correct perspective and WA barrel distortion as a matter of course with Photoshop. http://www.pbase.com/stanmore/image/72147131/original is a good example. If I could afford a Canon 24mm TS lens I would get one because it would let me compose 'perfectly' at capture A little cut and paste over the poster as well. Color corrected or enhanced? -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. |
#12
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"Fixing" distortion?
TheDave© wrote:
I recently bought a 15mm full-frame fisheye, mainly for fun and amusement, but it could be used for some serious wide-angles, also. I have had thoughts about buying Canon's 24mm tilt-shift lens... someday. I remember Bret rented one and decided it wasn't worth buying one. I have been doing some reading and thinking and have started to wonder if maybe using my 15mm, or any lens, and a program such as Image Align might be a cheaper and reasonable alternative than the $1100+/- that the tilt-shift lens would cost. Any thoughts or experiences? I haven't tried it, but I'sd suspect that once you correct the distortion and then crop the resulting pincushion-shaped image to a rectangle, you'd get effectively the same picture as a 21 or perhaps even 24mm corrected lens. It isn't actually necessary to use a shift lens; all they do is crop the image circle differently by moving the image centre away from the frame centre. You can get the same effect by using a high enough resolution sensor or film and then cropping out the unwanted forground in photoshop/on the enlarger. Sure you lose some resolution but if you have plenty to start with, then you might be able to afford it. |
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