2013年1月27日日曜日

Inconvenient reflection

A picture shows the difference of reflection on the iris surfaces between MD ROKKOR 28/2,8 and MC 28/2,8. 20 years older MC model has shinny surfaces on both sides, anterior and posterior compared with MD model, then what will happen if some shinny plate is positioned in the middle of lens constructive component? Even now, every optical company makes desperate efforts to prevent the light source reflection and to increase the transparency, the answer is clear before my further descriptions. We should eliminate any unnecessary reflections in the lens designing component as less as we can, because the reflected light source would continue the phenomena till it ends by attenuation. We cannot know how, when and where it happens before unpredictable shooting situations, so any lens barrel and mirror box internal reflection could be a ringleader of poor quality  of the works. Any chrome plated shinny surfaces like bayonet mount nails should be eliminated by some masking work with some anti-reflection materials. I'm going to bring these 2 Minolta lenses to compare each other to know the effect of difference of iris surfaces processes, under the condition of relatively closed iris setting on Canon EOS 7D digital image format. It is a matter for gratifying that nobody complains on my chronic disease like hobby plays because of the cheapest costs for material purchases.
As I took VW 1302 Super Beetle on last Thursday, I would take BC7 SUBARU Legacy LSi 4WD today that had been recovered from critical failures on the chronic disease, automatic rear transfer clutch dysfunction.

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