Check the window frames and you'll see that the shot has been
overshifted since the edges of the window frames are not parallel. I
tried loading your image into PS and correcting with PTLens but when the
window frames were properly aligned the walls enclosing the stairwells
still appeared to be diverging a bit at the top. I finally concluded
that the difficulty with this shot is some sort of optical illusion.
Even though the walls appeared to me to be diverging at the top a
measurement showed that was not actually the case.
Incidentally, I see that PTLens has distortion correction data for the
24 shift (none, half and full shift) but not the 35 shift.
Chuck Norcutt
SwissPace wrote:
> Hi All,
>
> here is this weeks effort - taken with the 35mm shift obtained a long
> time ago from a certain eco list member - in case my wife reads this ;-)
> I must admit I haven't got the hang of shifting despite owning the lens
> many many minutes but I like the lens and it seems sharp on the canyon.
>
> Steps!
> <http://thattimeoflife.smugmug.com/gallery/10979095_RYwEf#947011705_bKLj7-L-LB>
>
> For some reason this one has got me thinking of song titles, woman in
> red, stairway to heaven etc… come to mind.
>
> Thanks IanW
--
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