Moose's looks better. He did a stronger perspective correction than mine.
Chuck Norcutt
Moose wrote:
> John Hudson wrote:
>
>>www.JohnHudsonPhoto.com/Temp/Images/JC100532.jpg
>>
>>is a shot I took late this afternoon at Blue Rocks, Nova Scotia, a fishing
>>community about an hour west of Halifax. The shot was taken with a 7-14 zoom
>>on an E-500 at 7mm. I was standing on the hand rail.
>>
>>My question is whether the visual distortion of the wooden pathway and hand
>>rails and that of the jetty at the extreme left could likely be righted with
>>the PTLens software which has been discussed on the list of late.
>>
>
> In short - no. PTLens is designed to correct linear distortion inherent
> in the lens itself. It is calibrated for each lens by taking a picture
> of a flat subject with gridlike lines on it and with the camera square
> to the subject.
>
> Your distortion is a result of having the camera at a considerable tilt
> from horizontal, the classic problem with ultrawide lenses. That kind of
> distortion can be corrected in an editor like PS, but it significantly
> changes the image
> <http://www.moosemystic.net/Gallery/Others/Hudson/JC100532.htm>.
>
> To square up the subject puts lots of the original image outside of a
> rectangle without any blank space in it. Cropping to rectangular crops
> off that area. If you want to avoid both distortion and retain all the
> subject s seen through the viewfinder, you must hold the camera level in
> both planes.
>
> Moose
>
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