Pentax files a patent for a DA 12-35mm f/3.5-4.5 AL WR SDM lens

By PR admin | Published: December 16, 2010

Pentax patent DA 12 35mm f3.5 4.5 AL WR SDM lens Pentax files a patent for a DA 12 35mm f/3.5 4.5 AL WR SDM lens

Pentax filed for a patent in Japan for a DA 12-35mm f/3.5-4.5 AL WR SDM lens:

  • Patent number: 2010-282230
  • Release date: December 16th, 2010
  • Filing date: September 10th, 2010
  • Focal length: 12.30-34.50mm
  • Aperture: 3.6-4.5
  • Angle of view: 101.2-44.0°
  • 3 aspherical elements
  • Suited for APS-C format cameras

Related posts:

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  2. Canon files a patent for a 600mm f/5.6 lens
  3. Canon files a patent for a new 24-70mm F2.8L II USM lens
  4. Sigma 50mm f/2.8 EX DG OS HSM Macro lens patent
  5. Olympus 6-24mm f/1.8-3.8 lens patent

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6 Comments

  1. james
    Posted December 17, 2010 at 11:37 am | Permalink

    hmm. very nice. but what does this mean? when might a lens come out of it?

    • Mistral75
      Posted December 17, 2010 at 6:24 pm | Permalink

      In the end of their post, egami.blog.so-net suppose that this lens will be introduced at CP+ (9-12 February 2011) and available in March 2011.

  2. fzwo
    Posted December 18, 2010 at 2:30 am | Permalink

    This would be a VERY practical walk-around lens for the wide shooter. My Sigma 10-20 is often too specialized, so I don’t take it with me. Of course, there’s also a big difference between 10 and 112 mm. But if I want to go for dramatic effect, I’ll take the Samyang 8mm fish anyway.

  3. dino
    Posted December 20, 2010 at 5:05 am | Permalink

    A real aov of 18-50.. Cool! I guess it’s a lens that reporters ( PJs ) might like a lot… Let’s hope it’s well corrected, given the relatively slow aperture and the reduced zoom ratio (3x) – Other brands should think of this.

    • genotypewriter
      Posted December 21, 2010 at 5:37 pm | Permalink

      If I were a reporter or a PJ I’d want something better than a 50mm f/6.75 equivalent lens… doubt many would use a Pentax for that sort of a job either.

      This is a P&S lens for tourists who need the wides mainly but with a bit of zoom so they don’t need to walk over to their kids to take their photo.

  4. Marisol Perry
    Posted December 21, 2010 at 8:28 pm | Permalink

    If I were a reporter or a PJ I’d want something better than a 50mm f/6.75 equivalent lens… doubt many would use a Pentax for that sort of a job either. This is a P&S lens for tourists who need the wides mainly but with a bit of zoom so they don’t need to walk over to their kids to take their photo.