Basic rule of perspective correction - always compress, never stretch.
And take the shot with enough meat around the subject to allow for the
serious cropping require afterwards.
AndrewF
On 13/10/2004, at 3:40 PM, Gary Reese wrote:
> If one never uses a shift lens and just relies on the Skew
> transformation, then there will be a sharpness loss in strecched areas
> over that of the photograph which employed a shift lens and no Skew
> transformation, or perhaps used Skew to tweak a minor correction from a
> shift lens which wasn't a perfect correction.
>
> Architecture isn't the only subject Skew is good for. Start looking at
> any shot with a wide angle lens in which the camera was tipped up or
> down and the skewing will be apparent. It is rampant in landscape grab
> and 35mm shots. Most trees grow straight, but they don't come out that
> way when the camera is angled.
>
> Gary Reese
> Las Vegas, NV
>
>
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