We introduce a new 50 mm F1.2 standard lens which was developed by taking advantage of the Nikon Z-mount features of as much as possible.  

This is our best 50 mm standard lens in our product history, realized because of the Z-mount feature.

The “EOS-1D X Mark III” is the latest model of the-top-of- the-line digital single-lens reflex camera, the “EOS-1D series”. It features the revamped key devices such as a full-frame CMOS sensor with approx. 20.1 effective megapixels,  new “DIGIC X” image processor, and the newly developed “High resolution AF sensor”. Also, mirror drive system that is the major part of SLR camera is also newly developed and high-speed continuous shooting of max. approx. 16 shots/sec.（approx. 20 shots/sec. in Live View shooting）is achieved with AE and AF tracking, all of which make this camera a carrier of the state-of-the-art technologies and highest-grade mechanisms and performances. This document describes the mechanical driving system that enabled max. continuous shooting speed of approx. 16 shots/sec with mirror drive.

We will introduce the development of the large-aperture medium-telephoto lens “HD PENTAX-D FA ^★85 mm F1.4ED SDM AW” that pursues extremely high resolution and high image quality from the widest aperture over the entire shooting distance.

OM Digital Solutions released Super-telephoto PRO lens “M.ZUIKO DIGITAL ED 150-400 mm F4.5 TC1.25x IS PRO” that enables 2000 mm equivalent (35 mm equivalent) handheld shooting. This lens overturns the concept of a Super-telephoto lens and has close-up performance with a minimum shooting distance of 1.3 m, realizing an overwhelming shooting range from super-telephoto shooting to close-up shooting. In this paper, the technology for incarnating these features, “smallness and light-weight” and “image stabilization”　and “close-up performance”, is explained.

Expanding the optical image of the developed silver grains in nuclear emulsion films is one of the important improvements for further speeding up automatic track scanning. In this paper, we have evaluated effects of expanding the developed silver grains caused by changing the development process. It was shown that the intensification obtained by solution physical development has the effect of increasing the size of the developed silver grains composing tracks. Furthermore, We have developed a two-bath development method, in which the development process is divided into chemical development and solution physical development, and obtained a 1.7-times increase in the size of the developed silver grains without increasing noise (fog) compared to the current standard development process (OPERA development).

Conditions to reveal the enhanced fluorescence caused by dye-dye interaction in a mixed-dye system for the detection of radiation tracks by the fluorescence-labeling method was studied. We investigated the effect of adsorbed base, according to the previous finding that this interaction occurred at a condition that mixed dyes were adsorbed on silver iodide. Green fluorescence by the interaction was observed on silver iodide. Purple-blue fluorescence by the individual dye was observed on silver chloride and mixed-color one on silver bromide. Same green fluorescence was observed for the dyes adsorbed on potassium chloride, bromide and iodide, and for crystals of mixed dyes. Crystal structure of the bases cannot explain this difference.