Hola, el video que publicaste me ha servido mucho, el 70-200 MM USM L es una óptica que hay que tratarla suave y con mucho criterio. Hace 35 años que comencé a reparar y sigo aprendiendo día a día ... me gustaría compartir experiencias de taller y además tenés unas lindas herramientas que en Argentina no están todavía, mi nombre es Juan y no sé si hablas Español pero de alguna forma nos entenderemos si es que estás de acuerdo en compartir éstas. Saludo.
I don't do videos by request, I create videos when I have lens to be repaired. Currently I don't have time to create / edit videos due to my other works and projects, but maybe in the future that will change, and I start uploading again.
Hi, and thanks for this great and detailed guide! How do you manage to create the dust free environment? Do you use some air purifier or cleanroom? I am asking because recently opened my 70-200 f4L lens to clean the dust between the front lens groups, but didnt managed to make it completely dust-free :) I mean the lens elements were with no particles on them, before reassembly but when completed the whole operation 3-4 specks of dust still got inside.
I bought a small container with brush inside, cut the brush to a pointy end, and filled up the bottle with waterproof paint. Actually the paint came from a white pen, but I think you can use any white paint which dries fast and waterproof.
Alternatively, you can use a thick drinking glass which has the same diameter as the ring of the lens, and put small stripes of double sided adhesive tape on the glass for the grip.
hello good afternoon could you help me by message follow the video but I get lost in a part I don't know where a glass goes to mount the lens please can you advise me? by facebook message or whatsapp plis
Thanks again another perfect video.
Thanks again!
Hola, el video que publicaste me ha servido mucho, el 70-200 MM USM L es una óptica que hay que tratarla suave y con mucho criterio. Hace 35 años que comencé a reparar y sigo aprendiendo día a día ... me gustaría compartir experiencias de taller y además tenés unas lindas herramientas que en Argentina no están todavía, mi nombre es Juan y no sé si hablas Español pero de alguna forma nos entenderemos si es que estás de acuerdo en compartir éstas. Saludo.
Thank you and I'm glad my videos have helped you!
hi thanks, could you do a video for dessembly 70-200 f4 L is usm please? many thx
I don't do videos by request, I create videos when I have lens to be repaired.
Currently I don't have time to create / edit videos due to my other works and projects, but maybe in the future that will change, and I start uploading again.
Wery helpful as usual. Just one question: can you show more in detail how the cables from the motherboard are connected to the lens-camera connector?
Thank you for the feedback! Next time when I have this lens I'll do it!
I found one of these at a yard sale, needs screws and do not know where to get them. Any ideas, or can I sell it for parts?
Search for it on ebay or aliexpress, or ask the Canon service centers in your country.
Hi, and thanks for this great and detailed guide! How do you manage to create the dust free environment? Do you use some air purifier or cleanroom? I am asking because recently opened my 70-200 f4L lens to clean the dust between the front lens groups, but didnt managed to make it completely dust-free :) I mean the lens elements were with no particles on them, before reassembly but when completed the whole operation 3-4 specks of dust still got inside.
I use the dust blower to remove the dust after I install a lens element.
What is the white ink you are using? I couldn't find it on ebay, can you post a link?
I bought a small container with brush inside, cut the brush to a pointy end, and filled up the bottle with waterproof paint. Actually the paint came from a white pen, but I think you can use any white paint which dries fast and waterproof.
hello, what is the name of this tool you use in 11.05 of the video? where can i find it to buy?
It is called the "lens opening tool", ebay and aliexpress links are in the description below.
Alternatively, you can use a thick drinking glass which has the same diameter as the ring of the lens, and put small stripes of double sided adhesive tape on the glass for the grip.
hello good afternoon could you help me by message follow the video but I get lost in a part I don't know where a glass goes to mount the lens please
can you advise me? by facebook message or whatsapp plis