My dream sigma dp camera wide angle with tilt or tilt-shift

Started Oct 17, 2012 | Discussions thread
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Roland Karlsson Forum Pro • Posts: 25,396
Re: My dream sigma dp camera wide angle with tilt or tilt-shift

digi2ap wrote:

Interesting, thanks for posting. I also use PS to software correct for geometric distortion when using my DP1 and DP2 cameras (not Merrill) but have noticed that the inherent image sharpness does get softened quite a bit. I'm interested to know whether the Merrill cameras with their increased resolution can withstand the effects better? Comparing the before and after images here looks like it might be so.

This is one of the major obstacles with Foveon images. At least with the older images with just few pixels. You cannot distort the image without losing the sharpness. Its the same for rotating the image. Or when correcting CA.

There is maybe a solution though. You can test it. If you upscale the image before correcting distortion, then the interpolator has more pixels to play with. Maybe the sharpness wil be preserved then?

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