Finally got angry about lack of 35mm equivalent

Started Jul 31, 2012 | Discussions thread
viking79
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Re: Don't bother getting angry...
In reply to headofdestiny, Aug 1, 2012

headofdestiny wrote:

The Canon 22/2 isn't a symmetrical wide angle design. In fact, it looks to have a similar design philosophy to the Sigma 30/2.8, although, we obviously don't know how well the Canon will perform, yet.

Thanks for the lens design, didn't realize it was similar to the Sigma. The Sigma is an Image Space Telecentric design, meant to improve corner performance and light fall off by making the angle of incidence close to 0 (perpendicular) to the sensor.

So I guess it is a design methodology that most mirrorless camera systems use to improve corner performance for short flange distances. Will be interesting to see how well it works in the Canon.

Eric
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