Sony's new curved sensor - this is a big deal

Started Jun 16, 2014 | Discussions thread
OP brownie314 Senior Member • Posts: 1,918
Re: Sony's new curved sensor - this is a big deal

stevo23 wrote:

meland wrote:

stevo23 wrote:

jcharding wrote:

Well, if implemented fully (by Sony and whomever Sony sells the sensor too) it could also mean that all legacy lenses become useless.

I don't think so. My understanding at this early stage is that the amount of correction is merely in line with the current curvature of today's lenses. Lenses aren't flat today and a slight curve would benefit them.

Ah, but the amount of curvature, i.e. the deviation from having a perfect flat field is certainly not consistent with today's lenses. Most camera lenses are computed to give as close as possible to a flat field at the film / sensor plane for obvious reasons, even if they don't always achieve it. A curved sensor in an interchangeable lens camera 'might' just just give better results by pure coincidence in matching the curve of the sensor with the curved field of one or two less than perfect lenses but it is highly unlikely to do so with most. And of course that is assuming that the field curvature will always be towards the lens when for some lenses it actually curves the other way.

All lenses have field curvature. Some more and some less. The goal is flatness, but it's impossible to achieve. What we don't know is how much is typical and how much this sensor has. Nor have we been told definitively that this will require all new lenses. We have been told that it will allow for simpler designs.

Right - the goal is flatness - because the sensor is flat - that is the only reason.  Yes - the point is simpler lens designs with fewer elements.  I think the best use of this curved sensor initially will be in fixed lens primes cameras - like the RX1, or Fuji x100s.  Could allow for very fast lenses in small packages.

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