Third Party Lenses

Sigma 85 1.4 Pricing & MTF

Canon Rumors
Posted onMay 28, 2010 at 3:36 PM
Updated onUpdated on May 28, 2010 at 6:03 PM

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The Sigma 85 f/1.4
You can preorder this lens from Amazon.

Preorder for $899 USD

sigma85mtf - Sigma 85 1.4 Pricing & MTF
Left: Nikkor 85 f/1.4 Right: Sigma 85 f/1.4
tele ef85mm - Sigma 85 1.4 Pricing & MTF
Canon 85 f/1.2L II MTF

Thanks Jackola

cr

Canon Rumors

32 responses to “Sigma 85 1.4 Pricing & MTF”

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  1. IIRC, 1 stop difference is defined when the difference in the aperture area is 2 times (or 100% bigger in other words).

    Here:

    (1.8 * 1.8 – 1.4 * 1.4 ) / (1.4 * 1.4) = 65.3%

    I’d say the difference is in between 1/2 and 3/4 stops.

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