Fallen bayonet flange lock button was set in original position, repeated rough handling there allowed the stopper E ring inside fall down unintentionally a month ago. As lens replacement could be done by pushing down locking pin part itself, I left it undone pretending that was not my own fault for a month. Today I have made up my mind to do that, though I have no experience on a recent camera body mainly made of engineering plastic. Anyway I have carried out the task taking time because of the first experimental trial. But for U-Tube movie showing about the construction inside and how it was assembled in order. I could have some self confidence to proceed to not only mechanical camera construction but also to fully electrified recent ones. Few screws removal was necessary to open outer cover made of magnesium alloy that is strong and light as to be the gravity of aluminum. Most of screws were not tightened enough after tens years of use. Strobe pop up switch and iris closing switch were just put on a thin film wiring plate without solid fixation, unreliable structural design at all, too expensive if it cost around 300,000 yen.
Very inconvenient mirror box upper part was engraved that prevents setting some specific lens with the character of lens-back projection Round shape grinding was performed to accept lenses with relatively longer and project backward interference comes on not only mirror box forming parts but also on reflector plate itself. Over ten years ago, no EF-S lens introduction was not planned by the company? Comparing old 10D and newer 7D, mirror size is changed into smaller one, so, smaller mirror size can make it possible to accept rear lens case projected EF-S lenses.
0 件のコメント:
コメントを投稿