50mm 1.4 droped/broken focus.

I bought a used 50mm 1.4 that had been dropped and the focus had stoped working. I bought it, took it apart, and fixed it!

Sorry for the poor quality images it was late when I took them.

Here was the problem.

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HTTP response: 404 | MIME changed to 'image/gif' | Byte size: ZERO | PHOTOBUCKET ERROR IMAGE

HTTP response: 404 | MIME changed to 'image/gif' | Byte size: ZERO | PHOTOBUCKET ERROR IMAGE

HTTP response: 404 | MIME changed to 'image/gif' | Byte size: ZERO | PHOTOBUCKET ERROR IMAGE

That's pretty good fix. You did a great job. Very sharp afterward too.

Nice job on the fix. What a steal. Are you going to keep it or sell it for a large profit?

nice job, where did you get it? Ebay broken lenses are now way too expensive due to scammers who want to to swindle their insurance companies

I'm not really sure what I'm going to do with it? I'm probably going to put it through it's paces and then sell it, but I might just keep it!

I bought it off of a local online classifieds site. I'm not a big fan of the Ebay, although this lens might end up there. I'm not really sure how much to charge for such a lens? Obviously I'd be up front about it's history.

My 50mm f/1.4 focus broke about a month ago. The micro-USM motor was apparently working, because it would focus from about 3m to infinity but would not focus closer than 3m (AF or MF). It seemed that something internal was stuck and was preventing focus closer than 3m. If I spun the MF ring quickly it would get stuck in different spots but I couldn't get it to unstick. I relented to having it repaired by a Canon authorized facility, but now I wish I would've tried fixing it myself. I spent $35 to have the repair shop take a look at it, another $35 for parts, and $140 for labor. I'm still waiting a month later as the replacement parts are still en-route from Japan.

Anyway, what steps did you take to get access to the "white block" and the channel that it slides in? I may need to repair it myself in the future and I won't pay the repair shop $200 again.

P.S. I bought a used but excellent EF 50mm f/1.8 Mk 1 as a backup for much less than the repair.

took mine apart, the little white plastic thing was broken, guess ill have to get one of those

Nick_b wrote in post #6613649
I'm not really sure what I'm going to do with it? I'm probably going to put it through it's paces and then sell it, but I might just keep it!

I bought it off of a local online classifieds site. I'm not a big fan of the Ebay, although this lens might end up there. I'm not really sure how much to charge for such a lens? Obviously I'd be up front about it's history.

I'll buy it for $60

Nice job! And for 50 bucks, such a simple fix? Steal of the century there.

Just did this to my 50mm that was getting stuck in the middle of the focus range.
Awesome fix! Followed this guys instructions on how to take it apart.
http://www.fotomozaic.​ro/artikel.php?idstory​=225&s=1

Great info to have, thanks! I must admit I've always been a little sheepish when it comes to trying to repair things myself, but I may have to think twice before sending the next one in.