We previously reported Sigma would be updating some of their large primes.
[PR] via [EG] & have posted a patent for a new Sigma 500 f/4 supertelephoto lens.
With the price of the new Canon offerings, there's going to be lots of room for other companies to make big glass more affordable.
Patent Information:
- Patent: 2011-70043
- Patent filing date: Sept 28, 2009
- Focal length: 489.9938
- Aperture: 4.1004
- Angle of view: 5.0498 °
- Back Focus 90.3449mm
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