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Author Topic: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)  (Read 2030 times)

martinelliminimo

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So I've had my 50mm 1.2 lens for about a year now and went on a mission trip to the Philippines.  I noticed during the second week while I was there, my lens would occasionally get stuck while using the AF.  When I would AF on a subject close, it would be fine, but when I would AF on something far, it would get stuck!  I would then have to move the ring manually to get it to work again.  I don't know if it had something to do with the humidity, because when i got back to the states, the lens performed fine!  Anyone experience something similar to this?  I'm thinking of sending it to canon... how much would it cost to repair?

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awinphoto

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #1 on: January 04, 2012, 03:37:47 PM »
I tested this lens from Canon CPS a year or so ago.... The AF would get stuck constantly... The camera would confirm focus but it wouldn't be in focus... It was a very very finicky lens when I played with it and so I had to pass on the lens... I hope this is the exception to the rule...
Canon 5d III, Canon 24-105L, Canon 17-40L, Canon 70-200 F4L, Canon 100L 2.8, 430EX 2's and a lot of bumps along the road to get to where I am.

waving_odd

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #2 on: January 04, 2012, 03:46:39 PM »
I would then have to move the ring manually to get it to work again.  I don't know if it had something to do with the humidity, because when i got back to the states, the lens performed fine!

Mine works fine in Hong Kong and the States.

JR

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #3 on: January 04, 2012, 03:53:31 PM »
Mine has worked fine for over a year and I bring it with me everywhere.  Seem like your lens might indeed benefit from a trip to the Canon repair shop.
1DX, 24mm f1.4L II, 35mm f1.4L, 50mm f1.2L, 85mm f1.2L II, 135mm f2L, 24-70mm f2.8L II, 70-200mm f2.8L IS II :  D800, D4, and a whole bunch of Nikon lenses

shermanstank

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #4 on: January 04, 2012, 04:21:32 PM »
I am currently vacationing in New York City and I took my 1V and 50L out in  the cold--- 15ºF !!! ---The camera and lens worked flawlessly.  You need to send that lens back for check-up/repair.   BTW, the 50mm f/1.2L is weather-sealed.  I have a  screw-in UV filter to "complete the sealing".

Good luck.

Sherwin

« Last Edit: January 04, 2012, 04:56:37 PM by shermanstank »

Leopard Lupus

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #5 on: January 04, 2012, 05:01:36 PM »
As said before, this is something that is not normal from the 50mm f/1.2
I would send it in for repair, as it is in fact sealed well (with a filter added, of course) but unless you let it experience conditions worse than what your body could handle, the AF shouldn't be stuck.
Good luck!

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Re: Anyone experience 50mm 1.2 focusing issues? (getting stuck on AF)
« Reply #5 on: January 04, 2012, 05:01:36 PM »