Блики и просветеление ! Вот я тут заметил, что отлично просветленные объективы дают ядовитые, фиолетовые и зелееные блики. В отличии например от стареньких, с однослойным покрытием. которые тоже дают блики, но менее окрашенные. Тут два варианта:
1) Отличное просветление вообще недолжно отражать видимые зеленые и фиолетове цвета на просмотр.
2) Просветление является цветной консервной банкой для папуасов. К примеру рубиновые бинокли
За первый вариант говорит то, что современная астрономическая оптика не отражает видимых излучений (не фиолетовая как японские объективы), является слабо голубоватой и пропускает 98% процентов (интегрально со всеми линзами и зеркалами)
Блики, просветеление и блестящщая консерва для папуаса !
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Блики, просветеление и блестящщая консерва для папуаса !
Re: Блики, просветеление и блестящщая консерва для папуаса !
Вот выдержка из интервью с Yoshihisa Maitani, создатетем системы Olympus OM (http://www.geocities.com/maitani_fan/om_interview_3.html)
I: Up to now, only few of the Zuiko lenses are multicoated, whereas almost all the lenses of other manufacturers, such as Nikon, are multicoated. Will this make the OM System less competitive? Since users will lose confidence in the lenses.
M: Let me answer this question in 2 ways. Although the technique of multicoating has already been used widely, its application in photographic lenses has occurred in recent years only. At first, multicoating was applied in lenses for microscopes. It is because these lenses demand a high light collecting power. They are also often subjected to bright light. In high magnifications, even small defects will ruin the performance of the microscopes. As a result, even though multicoating is a complex and expensive technique, it was employed in microscopes at an early stage. On the other hand, for photographic lenses, it is very rare that intense light sources will be photographed in normal conditions. Their demand for light collecting power is not so high. It is somewhat of a waste if multicoating is used. In wide angle and fisheye lenses, because of their wide angle of view, strong light sources, like the sun or studio lights, will very often be taken in the picture. In these situations, multicoating is therefore needed. Consequently, the first Zuiko lenses that are multicoated are the wide angle and fisheye lenses.
From another point of view, as multicoating is not needed normally, it will increase the production cost and the price that users will pay. Therefore, at present, not all Zuiko lenses are multicoated. To give customers a choice, both multicoated and non-multicoated lenses are available.
Kingstone: It is reported in foreign magazines that 95% photographers do not need multicoated lenses, and the difference between photographs taken by multicoated and non-multicoated lenses is so small that only an expert can detect it. While multicoating is of little use to photography, it is valuable to the manufacturers as they can increase the price.
I: Many users abandon the OM System because the Zuiko lenses are not multicoated. Is it a marketing disadvantage? Have you considered applying multicoating to new Zuiko lenses?
M: This will put the OM System at a disadvantage when competing with other manufacturers. We have already planned to enhance our promotional activities; as to applying multicoating to all Zuiko lenses, it is also under consideration. However, it is my own opinion that in most situations, multicoated lenses are not required, but they should be used if there is a real need for them.
I: Up to now, only few of the Zuiko lenses are multicoated, whereas almost all the lenses of other manufacturers, such as Nikon, are multicoated. Will this make the OM System less competitive? Since users will lose confidence in the lenses.
M: Let me answer this question in 2 ways. Although the technique of multicoating has already been used widely, its application in photographic lenses has occurred in recent years only. At first, multicoating was applied in lenses for microscopes. It is because these lenses demand a high light collecting power. They are also often subjected to bright light. In high magnifications, even small defects will ruin the performance of the microscopes. As a result, even though multicoating is a complex and expensive technique, it was employed in microscopes at an early stage. On the other hand, for photographic lenses, it is very rare that intense light sources will be photographed in normal conditions. Their demand for light collecting power is not so high. It is somewhat of a waste if multicoating is used. In wide angle and fisheye lenses, because of their wide angle of view, strong light sources, like the sun or studio lights, will very often be taken in the picture. In these situations, multicoating is therefore needed. Consequently, the first Zuiko lenses that are multicoated are the wide angle and fisheye lenses.
From another point of view, as multicoating is not needed normally, it will increase the production cost and the price that users will pay. Therefore, at present, not all Zuiko lenses are multicoated. To give customers a choice, both multicoated and non-multicoated lenses are available.
Kingstone: It is reported in foreign magazines that 95% photographers do not need multicoated lenses, and the difference between photographs taken by multicoated and non-multicoated lenses is so small that only an expert can detect it. While multicoating is of little use to photography, it is valuable to the manufacturers as they can increase the price.
I: Many users abandon the OM System because the Zuiko lenses are not multicoated. Is it a marketing disadvantage? Have you considered applying multicoating to new Zuiko lenses?
M: This will put the OM System at a disadvantage when competing with other manufacturers. We have already planned to enhance our promotional activities; as to applying multicoating to all Zuiko lenses, it is also under consideration. However, it is my own opinion that in most situations, multicoated lenses are not required, but they should be used if there is a real need for them.
