The standards created by WG2 include those related to flash bulbs, GN measurements and dimensional standards for flash connectors. The WG2 was very active up to the 1980s as Japanese representatives played a central role. However, the number of matured standards has increased recently. It has been determined that this WG will be dissolved after the revised draft of ISO1230 is submitted to the 17th ISO/TC42 full convention.
WG4 is a working group for the management of the mechanical elements of cameras, such as mechanical dimensional standards and optical-related standards, and standards for shutter and exposure measurement. As Japan has progressed in camera technology, its position in the WG has improved. At the 7th ISO/TC42 full convention in 1973, Mr. Shigeo Ono was recommended as a convener, and Japanese have served as conveners for many years: Mr. Goro Hasegawa, Mr. Tateo Yamada, Mr. Yoshiyuki Nakano and Mr. Yasuaki Miura (current).
Many of these standards are applied not only to silver halide cameras but also to digital cameras, for example, tripod screw standards. It is expected that these will be widely applied in the future.
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