Innovative Sony multilayer sensor patent shows how to get rid of corner
issues.
“The short E-mount flange distance has one “drawback”. Lenses have to be
larger to correct the incident angle at the corner which usually causes
heavy color shifting, huge vignetting and loss of sharpness. That’s why
Voigtlander redesigned the Heliar 15mm III lens (here on eBay). And the new
design makes the new lenses twice as big as the predecessor.
Sony seems to have acknowledged that there is an issue to be solved. Egami
spotted a new Sony sensor which packs a couple of innovations. First of all
this is a multilayered sensor (and not a classic RGB Bayer). And the second
innovation is that there is a lens on the sensor that corrects the angle of
the light hitting the sensor. With that solution the light hits the full
sensor with the right angle. It would allow lenses to be more compact
because they don’t have to uses more glass to correct the angle.
On paper it would also allow all third-party lenses (particularly wide-angle
lenses) to work flawlessly on Sony FE cameras. Let’s hope the next
generation FE camera will come with such a sensor. Exciting!” http://www.sonyalpharumors.com/innovative-sony-multilayer-senso
