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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 21 Jul 2010 (Wednesday) 02:56
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85 F1.8 - faulty! Anyone with any experience?

 
Ross_Curtis
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Jul 21, 2010 02:56 |  #1

I’ve owned my Canon 85mm F1.8 for 2 years now, in the two years I’ve owned it, I’ve probably only taken 50 photos, it’s literally brand new and not a single mark or sign of use on it.*
Last night I got it out as my main lens is being repaired only to find the manual focus ring struggles to focus the lens, the outer rubber ring turns but the lens fails to adjust, with some coercing it does move.* If you switch to auto the lens seems to work fine on items close to in focus, but if it wants to go from infinity to say 2m’s it stops half way, if I constantly press the shutter it slowly moves past this sticky point and works OK within this range.
*
Looks like I might have to send it in to Canon, however, I wondered if it was worth doing so with such a relatively cheap lens?
*
I’m not totally convinced the motor is faulty, more something out of alignment.* Does anyone have any experience of this?
*
I‘m tempted to remove a few screws on the barrel to see if this releases part of the outer casing in order for me to have a little look at it.
*
Thanks
*
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c2thew
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Jul 21, 2010 03:00 |  #2

If you do send it in to canon, they charge $150 which is half the cost of a lens.

do a search on how to open up lenses and see if someone has opened up an 85 1.8 before you scratch your lens.


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Ross_Curtis
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Jul 21, 2010 03:22 |  #3

I wouldn't want to open it up to the point of removing any elements, as previous experience tells me it's almost impossible to do so without introducing dust.

I'll have a little search.


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Mike ­ Bell
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Jul 21, 2010 04:46 as a reply to  @ Ross_Curtis's post |  #4

Good luck with this. If you're lucky it's just some grit making the focussing sticky and you may be able to get it out with care. I have no experience of opening up a lens though.


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85 F1.8 - faulty! Anyone with any experience?
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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