Ricoh announces development of two new system units for the GXR interchangeable unit camera. The new P10 28-300 mm F3.5-5.6 VC features a back-illuminated CMOS sensor and high-zoom 10.7x (28-300 mm) optical wide-angle zoom and offers 120 frame/second high-speed continuous shooting. The new A12 28 mm F2.5 features a 23.6 mm x 15.7 mm (APS-C size) CMOS and a newly developed 28 mm fixed-focal-length GR lens. The availability of the P10 is planned for this summer, the A12 for the last quarter of this year…