Real focal length off the Sigma 17-50 2.8

Started Aug 16, 2013 | Questions thread
davel33 Senior Member • Posts: 1,671
Re: Real focal length off the Sigma 17-50 2.8

schipp wrote:

Comparing the field covered by the Sigma 17-50 at 50 mm and 35 mm with 2 Nikon primes with the same focal length I see a clear difference.The Sigma gives a clearly bigger field of view as if the focal length is around 45 and 30 mm.In the Exiff the "official "focal lengths are given.

Any other experiences ? reasons ?

thanks

The rated FL is at the infinity focus point and sometimes is bigger near MFD.

Dave

 davel33's gear list:davel33's gear list
Canon EOS 7D Mark II Canon EOS R Sigma 2x EX DG Tele Converter Sigma 50-150mm F2.8 EX DC APO OS HSM Sigma 18-35mm F1.8 DC HSM Art +23 more
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