Michael Clark said:neuroanatomist said:Michael Clark said:neuroanatomist said:Mikehit said:Actually the bigger improvement would be curved sensors to reduce/avoid the need for the full panoply of corrective elements needed for a rectilinear lens.
IIRC, Sony patented something like that a while back, though I believe the intent was for a fixed-lens camera rather than an ILC.
Wouldn't the radius of curvature need to equal the focal length? Which means any particular sensor would only work with a single focal length...
No, it wouldn't. Just as current optical designs project a planar image regardless of focal length (although some fail, e.g. the original 24-70/2.8L's notable field curvature), lenses of different focal lengths could be designed to produce the same fixed curvature of the image 'plane'. However, it would be challenging for longer lenses and for zooms.
But isn't the entire point to begin with of a curved sensor to eliminate the need for lens correction? In terms of things such as field curvature, etc.
To eliminate some corrections and have a more compact, simpler lens, yes. You're correct about that applying to lens focal lengths which 'match' the sensor curvature. Designing lenses with other FLs would mean giving up those advantages. But as I stated above, it appeared the primary intent was a fixed lens application (similar to Sony's RX-1, but also smaller sensors – such as an iPhone where the lens doesn't need to protrude from the back of the device).
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