Today Ricoh posted a new product story about the exposure control function of the upcoming Pentax K-3 Mark III camera:
The PENTAX K-3 Mark III retains the conventional Hyper Operation system, in which the front and rear electronic dials are used to shift to the Tv or Av mode. However, we added a new Advanced mode to its new-generation Hyper Operation system. This new system retains the conventional mode-shifting operation when you use only one of the electronic dials — from P to Av with the front dial, or from P to Tv with the rear dial. However, you can also instantly shift to the TAv (Shutter/Aperture-priority) mode by turning the other dial after the initial action. TAv is the PENTAX-original AE mode in which the camera automatically sets the optimum ISO sensitivity when you choose a combination of aperture and shutter speed by yourself. Because of the PENTAX K-3 Mark III’s extra-wide sensitivity range, the TAv mode assures more flexible control of the depth of field and the sense of motion — for instance, setting a faster shutter speed at a closed-down aperture — to more clearly express your imagination in your photos. You can even shift to the M (Manual) mode by freezing the ISO sensitivity, making it possible to shift the exposure mode from P to M without using the mode dial.
