View single post by Robert
 Posted: Sat Sep 8th, 2012 05:50
Robert



Joined: Mon Apr 2nd, 2012
Location: South Lakeland, UK
Posts: 4066
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I can't help thinking that nobody can make a $2000 lens and sell it for $700.

The reason for using a tilt shift is to extract the last ounce of perfection from the image, can that be achieved with a lens 1/3 the price?

Even the Nikkor suffers noticeable CA at the edges according to the review I read.

Because of the construction of a DSLR it's impossible to use a true tilt shift , so it appears the PC lens is split onto two sections, an image gatherer and an image projector. The tilt shift effects happen at the intersect of the two sections of the lens and the resulting image is projected to the mirror/viewfinder or the sensor during exposure.

I think the wide angle Hass idea is a good one but I wonder how the DSLR snags are overcome, if they are? Seems to me there has to be vignetting at the more extreme tilt-shifts?



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Robert.