Is F 1.2 really that difficult ??

Started Oct 19, 2013 | Discussions thread
Just another Canon shooter
Just another Canon shooter Veteran Member • Posts: 4,691
Re: Is F 1.2 really that difficult ??

F1.2 WA lenses are certainly possible but the question is how well they will perform. The physical limitations are glass with a more or less fixed index of refraction, and the sensor size. You want to concentrate a lot of light onto a small area, and that means very oblique rays at the sensor. They will not be well recorded by the sensor first, and on their way to the sensor, they need to be refracted much more because of the sensor size and the WA, which increases aberrations, CA, etc.

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Canon EOS 5D Mark II Canon EF 15mm f/2.8 Fisheye Canon EF 35mm F1.4L USM Canon EF 50mm f/1.2L USM Canon EF 135mm F2L USM +4 more
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