For tomorrow: Pentax Theta 360 camera and Fuji XF 23mm f/1.4 R lens announcements

Pentax Theta 360 camera
For tomorrow's scheduled press event Ricoh will most likely announce a new 360° camera called Pentax Theta 360. Such camera was rumored last year, but the Pentax acquisition by Ricoh probably delayed the announcement. Various prototypes of similar camera were shown at Photokina (by Pentax) and during the CES show (by Ricoh). The above screenshot taken earlier today is from Ricoh/Pentax website but the page is now removed. You can still access the cached pages here. There could also be other new products that will be introduced.

Fujifilm XF 23mm f:1.4 R lens
Tomorrow Fuji will also announce their XF 23mm f/1.4 R lens that will be priced at $849.95. Here are the specs:

  • 35mm equivalent F1.4 lens
  • Fully compatible with FUJIFILM X-Mount
  • 1 lens group consisting of 3 cemented lens elements and 1 aspheric lens element
  • Built-in high-torque DC coreless motor
  • Seven round-edged aperture blades, which offer 22 stops in 1/3 EV steps
  • Lens elements treated with Fujifilm’s multilayer HT-EBC (High Transmittance Electron Beam Coating)
  • Weight: 10.6oz
  • Length: 2.84”
  • will be available in October 2013 for $849.95
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  • Ranger 9

    “1 lens group consisting of 3 cemented lens elements and 1 aspheric lens element”???? This has to be the fastest four-element lens ever! And probably the most expensive!!

    • Dan

      Maybe it just means that ONE OF the lens groups consists of three cemented lens elements and one aspheric lens element. It doesn’t necessarily mean that this is the ONLY group in the lens.

  • sperdynamite

    I am very interested in seeing what this 3 element lens looks like. Does that make it like a triplet? Can somebody who knows about these things chime in here and explain this?

    • http://genotypewritings.blogspot.com/ genotypewriter

      Typo I bet

      • grant torres

        Yup, high-strength Portland cement used too, not the cheaper ordinary pozzolan.

  • Ranger 9

    And it has “22 stops”! Let’s see, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22, f/32, f/45, f/64 (for you Ansel Adams fans), f/90, f/128, f/256… hmm, that’s only 15 stops and I’m already up to the smallest one I remember from photography school!

    Maybe this — and the four-element, two-group optical design — represent some careless (or excited) leak sources, rather than the actual specs…

    • Warpig

      This obvioulsy means it has 22 “click” stops in the aperture ring, in 1/3 EV steps, so you have 2 positions between the full stops mark.

  • LarryC

    “…there is no need to compose your shot.”

    I’m in. I’m so tired of having to think about composition.

  • http://genotypewritings.blogspot.com/ genotypewriter

    I like how they’re say “35mm equivalent” and then “f/1.4 lens” instead of saying “35mm f/1.4 equivalent lens” :)

    Since we’re not dealing with limited iso values like in the film days and since it doesnt make sense to compare sensitivity between different gear without considering noise levels, it’s not a crime to show the f-number equivalence too.

    People need to stop taking old photography books as gospel.

    • Ranger 9

      Except when they’re right. The f/number has never been anything other than the ratio of the actual focal length (not “35mm equivalent” focal length) and the numerical aperture; no “equivalence” about it.

      • RobA

        The “equivalence” being talked about here is the Depth of Field equivalence. There’s no right or wrong involved.

        • http://genotypewritings.blogspot.com/ genotypewriter

          And light too…

      • http://genotypewritings.blogspot.com/ genotypewriter

        The point being made here is that if a manufacturer bothers to state the field of view of a lens in terms of what it would be comparable to on the 36×24 format, then why not state what the f-number would also be _comparable to_ on that format?

        Again, before anyone makes a ridiculously dpreview-like comment such as “f/1.4 is f/1.4″… they should ask themselves why Fuji, for instance, doesn’t say “23mm is 23mm” here.

  • BP2012

    Shovel and camouflage net are part of the kit or not?

  • kn
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