VLukinov (28.8.2007, 17:31) писал:
Меня вообще интересует сравнение именно Фуджинона и Такумара, тех - которые представлены в названии темы - исключительно с фотографичкской точки зрения.
1. Что за фименное просветление EBC - у фуджинонов? На сколько оно хуже чем родное SMC?
2. Поводок экспонометра не будет мешать при установке на переходник?
Оригинал статьи про просветление 70-х
Flare control in multi-coated lenses of the Seventies By Dario Bonazza.
When Asahi Opt. Co. introduced their Super-Multi-Coated Takumar lenses in 1971, there were many different reactions to this announcement. According to an article authored by Fabio Amodeo and published in September of 1972 by Photo 13 magazine, Nikon stated that they already employed multi-layer coatings (up to three or four) on some lens surfaces and Asahi was fooling photographers, since no more than 5 layers were technically possible. Also Canon and Leitz said they were developing a similar process, but 7 layers was far from being credible. To the contrary, Fuji said they were ahead, since they already had developed their own EBC (electron-beam coating) technology up to 11 layers, employed on some lenses for movie cameras on occasion of 1964 Olympic Games. Further in reaction of the Asahi announcement, Fuji said they were going to use EBC on camera lenses very soon.
As already reported in Spotmatic magazine No.4 (page 5), a comparative test about lens flare - authored by Maurizio Micci and published in 1974 by Fotografare magazine - among Super-Takumar, SMC Takumar and EBC Fujinon lenses was quite amazing. In fact the SMC Takumars scored only a bit better than the Super-Takumars, while the EBC Fujinons were outperformed by both lines of Asahi lenses. The wrong conclusion of the editor was that multi-coating was useless, since the then supposed most advanced coating (since Fuji’s EBC had 11 layers) arrived last, while the obsolete Super-Takumars ranked second and very close to the winners (SMC Takumars). This is not to blame Mr. Micci, since we now have more information and can draw quite a different conclusion. In fact what was my suspicion when I wrote the above mentioned article had already been officially confirmed by Asahi Opt. Co (but I wasn’t aware of that at the time): late production Super-Takumars were already multi-coated. It was probably just an experimental coating, maybe less than 7-layers, or maybe it was not on all air-to-glass surfaces, so that it didn’t perform as well as the definitive Super-Multi-Coating. What about the poor flare performance of the EBC Fujinon lenses? I suppose that at that time Fuji had to hurry in making use of multi-coating technology, and their own process was still not tuned up. In fact a few years later Fuji developed their improved Super EBC, which is now considered an excellent (some would say the best) lens coating for photographic lenses.
Предупреждение от модератора Андрей АМ
Напоминаю! 2.1. ...В случае цитирования иноязычных источников цитаты нужно сопровождать переводом или комментарием на русском языке...