Serious injuries by EF 50MM F1.8 dream revived _ Homestead

This is the famous "cleansed" header: CANON EF 50MM F1.8. Lens AF failure, ask again the seat of several repair center that cannot be repaired, which means that the repair will not be thrown. But as far as I know, this kind of simple structure of the camera as if nothing could fix it. Then he opened a try. First try the machine, AF. Af switch location in AF, AF rings loosely, and the MF. Appear on the camera body is manual focus, no focus mode of display. Manually rotate the focus ring, lens nor focus spending, manual and automatic AF all fail. Use mobile camera distance to focus took some photos of observation and discovery focus most explicit, the whole picture or a movie, this blur and focus. Carefully check the lens front end, and then find the lens front mirror set Askew, the shaft is not positive, fuzzy photos. It seems that this header is sick. Can ultimately be big disassembling a repair. This plastic structure of lens looks can't find Gong silk also cannot see the seams, many people have. In fact, this is the best scrapping. This lens to overall solutions for the removal of the key point is that in AF switch on a piece of plastic. No Gong silk majority is on adhesion. Of course not be hard sticks are dead, as many are double-sided tape. With a small screwdriver, gently in the buttocks which side of a Kiu, the AF switch components came out. Then is the only one Gong silk (bayonet on two tablets of interface-contact fixed Gong silk, removed without removal will not affect), this location is also cleared, the entire lens is split in two. EF 50MM F1.8 back from the "TITLE =" EF serious 50MM F1.8 back "/ 50MM > EF F1.8 back from the" TITLE = " EF serious 50MM F1.8 back"/> this lens AF mode switch is the most typical DC motor driven, mechanical clutch with electronic combination, the majority of ordinary lenses are all this kind of structure. Check the switch action mechanical clutch has loose, no flexibility, also is to can't AF State top clutch gear, motor autofocus lens cannot be driven. This fix was too easy, correction to the original location to restore certain stretch Django OK. This time only to find the fuselage provides state information for an AF switch pull-handle has been broken, so the switch can not sync with mechanical clutch, the fuselage and the action could not be two different state information. This switch is the General parts store is unable to find a substitute, is this repair? non-! want to have a way to turn the switch to using tweezers remove AF direction, at which point the lens provides only one automatic AF status to the airframe, airframe let lens AF, this time to remove the lens to MF AF switch, the fuselage do not know the lens can still MF, the fuselage is normally work is recorded in the State of the photo or AF, this solve the problem. Full time hand lens is such a work, without any impact. EF 50MM F1.8 back from the "TITLE =" EF serious 50MM F1.8 back "/> first installed lens in the fuselage on trial, AF correctly, the switch in the MF, manual focus and no problems, the camera still has focus, any nuisance, such as full time manually. Well, finally solve the problem of the lens the optical axis. Once again opened the lens, the camera's internal is a combination of plastic fastener. The lens front end due to external forces and plastic structure elastic effect, while forcing the inset, lead to the optical axis is not positive. Fix is very simple, with the exception of specially-force to position the front lens back to their normal position. Gently "snapped" a cry that get things done. EF 50MM F1.8 back from the "TITLE =" EF serious 50MM F1.8 back from before and after "/> spent less than half an hour on the overall repair, this has been sentenced to death for" cleansed "back to the original performance, but the body will always receive the information on the State of MF, always feel a little gain. Now that came in, please don't bother, may wish to read a few articles, I believe there is a right for you. Welcome to click: my other article: attempts a commentary on the world network mighty mighty yanwuji life comment my blog tutorial: template plug-in code tutorial tutorials effects code code tutorial I article album: Talk quotations-world- folk-World Society my music album: Tang poetry song Word poet in ancient dialogue : tongli EF 50MM F1.8 back from the "TITLE =" EF serious 50MM F1.8 back "/ 50MM > EF F1.8 back from the" TITLE = " EF serious 50MM F1.8 back"/> r>���ҽ���Ȧ�ӻ�ӭ����