I Repaired my own 50mm 1.4, and so can you!

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Sep 5, 2013
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My trusty 50mm 1.4 stopped focusing the other day, and I couldn't even focus manually by turning the ring. I googled the issue and found that many others had experienced the same thing. I never dropped my lens or anything. It seems that all it takes is a bit of pressure on the front focusing element, and a metal part inside will get bent. This can cause the focus mechanism to get stuck.

I got a lot of help from following this guide:
http://image23photographic.blogspot.no/2012/04/fixing-stuck-focus-ring-on-canon-50mm.html

Getting the lens repaired here in norway was close to the cost of a brand new lens, so I figured I had nothing to loose. I have never repaired a lens or anything similar before. If I can do it, odds are you can do it too!
 
BozillaNZ said:
Mt Spokane Photography said:
Welcome to CR Emil.
Post some photos and tells us about your photographic interests.

Don't be so harsh, we are in the 'Gear' sub-forum, yes? :-X

Also most of the photographers can't do any fixing job themselves, they will cream OMGWTH have you done?!?! Send it to Canonnnnn haxxorz!!

What are you on?? Must be good stuff.

That was a friendly post welcoming a new member, and trying to encourage him to tell us more about his photography and interests.
 
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Emil said:
My trusty 50mm 1.4 stopped focusing the other day, and I couldn't even focus manually by turning the ring. I googled the issue and found that many others had experienced the same thing. I never dropped my lens or anything. It seems that all it takes is a bit of pressure on the front focusing element, and a metal part inside will get bent. This can cause the focus mechanism to get stuck.

I got a lot of help from following this guide:
http://image23photographic.blogspot.no/2012/04/fixing-stuck-focus-ring-on-canon-50mm.html

Getting the lens repaired here in norway was close to the cost of a brand new lens, so I figured I had nothing to loose. I have never repaired a lens or anything similar before. If I can do it, odds are you can do it too!

Well done you!
 
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Welcome, Emil, I also enjoy fixing my own gear. I have repaired about 2 dozen bodies and about a dozen lenses. In fact, just today I received a broken 24-105mm that needs a new aperture. I'm excited, as this will be my first L lens fix. Glad your first foray into DIY lens fixing was successful. I hope you have many more successes in the future.
 
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BozillaNZ said:
Mt Spokane Photography said:
Welcome to CR Emil.
Post some photos and tells us about your photographic interests.

Don't be so harsh, we are in the 'Gear' sub-forum, yes? :-X

Also most of the photographers can't do any fixing job themselves, they will cream OMGWTH have you done?!?! Send it to Canonnnnn haxxorz!!

what the what? (as my 4year old is prone to saying)
 
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I usually don't get set off so easily.

I apologize to the group, sorry to spoil your popcorn.


I also repair lenses as a hobby, but its mostly the old MF ones unless its something simple like a lube job. I've had a bad 50mm that performed as noted, after it was fixed, the focus was so far off that it had to be sent to Canon for adjustment.
 
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risc32 said:
what the what? (as my 4year old is prone to saying)
I like that phrase. May I have your 4 year old's permission to use it when appropriate? :)


Emil said:
My trusty 50mm 1.4 stopped focusing the other day, and I couldn't even focus manually by turning the ring. I googled the issue and found that many others had experienced the same thing. I never dropped my lens or anything. It seems that all it takes is a bit of pressure on the front focusing element, and a metal part inside will get bent. This can cause the focus mechanism to get stuck.

I got a lot of help from following this guide:
http://image23photographic.blogspot.no/2012/04/fixing-stuck-focus-ring-on-canon-50mm.html

Getting the lens repaired here in norway was close to the cost of a brand new lens, so I figured I had nothing to loose. I have never repaired a lens or anything similar before. If I can do it, odds are you can do it too!
That is some piece of work! Congratulations! Welcome!
 
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Thank you for the warm welcome guys! I have been browsing this forum occasionally for a while, but I never took the time to register. I am looking forward to posting and reading more in the future. I think this forum has a great mix of both humor and professional advice.
 
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You can bend that piece back a couple of times and then you have to replace the barrel. It's easier to just always leave the hood on and to develop the habit of just setting the focus to past infinity when you stow the lens.

Also worth noting is that for as deep in as you dug, you're not that much further from being able to replace the focus motor and gear train assembly (it's all one part). The motor burns out and the gears can tear up.



The Ballad of Brave Sir Fifty

Bravely bold Sir Fifty rode forth from Calumet
He was not afraid to die, O brave Sir Fifty!
He was not at all afraid to be killed in nasty ways,
Brave, brave, brave, brave Sir Fifty!

He was not in the least bit scared to filled with fungal growth,
Or to have his aperture fail, and his blades broken;
To have his casing split, and his motor burned away;
And his gears all hacked and mangled, brave Sir Fifty!

His threads smashed in and his barrel torn out
And his switches popped off and his ribbons unplugged
And his electronics scraped and his mount fall off
And his primary--
 
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paulc said:
You can bend that piece back a couple of times and then you have to replace the barrel. It's easier to just always leave the hood on and to develop the habit of just setting the focus to past infinity when you stow the lens.

Also worth noting is that for as deep in as you dug, you're not that much further from being able to replace the focus motor and gear train assembly (it's all one part). The motor burns out and the gears can tear up.



The Ballad of Brave Sir Fifty

Bravely bold Sir Fifty rode forth from Calumet
He was not afraid to die, O brave Sir Fifty!
He was not at all afraid to be killed in nasty ways,
Brave, brave, brave, brave Sir Fifty!

He was not in the least bit scared to filled with fungal growth,
Or to have his aperture fail, and his blades broken;
To have his casing split, and his motor burned away;
And his gears all hacked and mangled, brave Sir Fifty!

His threads smashed in and his barrel torn out
And his switches popped off and his ribbons unplugged
And his electronics scraped and his mount fall off
And his primary--

The 40 mm lens may pancake, or the 135 focus softly, or the 90 shift and tilt, yet these are not strangers to our lands!
 
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Viggo said:
This is what you get for posting on a friday ;D ;D

"what the what? " I like that. I'm stealing it for sure!

Welcome Emil, you a scandinavian?

Yes. I suppose I should give a brief introduction about myself.

I am a 23 year old student at the norwegian university of life sciences, who just started writing his master thesis in analytic organic chemistry. I used to spend most of my spare time playing music and learning new musical instruments. However, ever since I got my first DSLR(600d) about 8 months ago I have been spending a lot of time teaching myself the art of photography. I quickly learned the technical side of it, but I am still very much a novice when it comes to every other aspect of photography. I hope to learn a lot from this forum!
 
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anthonyd said:
Emil said:
... I quickly learned the technical side of it, but I am still very much a novice when it comes to every other aspect of photography. I hope to learn a lot from this forum!

and where is the link to your flickr page?

I had found him on Facebook, but I wasn't absolutely certain it was him at the time. (I was checking for a different Scandinavian Person) He sounded like a very astute person with a wide range of talents and impressive, which is why I orginally invited him to tell us more about himself.

https://www.facebook.com/oisang
 
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