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Archive 2015 · 135mm F2 Missing Screws

  
 
eric hagemann
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p.1 #1 · p.1 #1 · 135mm F2 Missing Screws


Just bought a used 135mm F2. The lens is in awesome condition with one (well two) minor issues.

Just under the name ring there are three screws equally space around the lens. In this case two of the three screws are missing. I have highlighted the missing screws in the picture below.

The top of the lens ring flexes ever so slightly due to the missing screws so I'd like to get this fixed.

I know I can go to Canon for the fix but I'd rather not pay $100 + shipping for what should be a 2 minute job.

Does anybody have a suggestion of where I might be able to get the parts ?

http://www.solsticephoto.com/images/135mm.jpg



Jul 23, 2015 at 08:15 PM
Sunny Sra
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p.1 #2 · p.1 #2 · 135mm F2 Missing Screws


unless you got an exceptional deal...i'd return the lens


Jul 23, 2015 at 08:27 PM
eric hagemann
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p.1 #3 · p.1 #3 · 135mm F2 Missing Screws


Deal was good; lens works fine. After close inspection I believe the screws were left out at the factory.


Jul 23, 2015 at 08:32 PM
Sunny Sra
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p.1 #4 · p.1 #4 · 135mm F2 Missing Screws


eric hagemann wrote:
Deal was good; lens works fine. After close inspection I believe the screws were left out at the factory.


no i don't think so..1 left..yeah...but 3...ummm..no.

just call canon and ask them for the part # and buy the screws from mcmaster carr



Jul 23, 2015 at 08:34 PM
anelles
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p.1 #5 · p.1 #5 · 135mm F2 Missing Screws


Canon Parts Dept: (732) 521-7230


Jul 23, 2015 at 08:38 PM
hotdog12
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p.1 #6 · p.1 #6 · 135mm F2 Missing Screws


You can likely find the correct size sheet metal screws at a hardware store. A couple of screws worked loose from my old 70-200 f/2.8 IS version 1 before I noticed, and a quick trip found some replacements. Don't force them, though! If they don't screw in easily, they aren't the right size and you can strip the threads.


Jul 24, 2015 at 07:23 AM
dhphoto
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p.1 #7 · p.1 #7 · 135mm F2 Missing Screws


It's been taken apart and not reassembled properly would be my guess. Proceed with caution


Jul 24, 2015 at 07:40 AM
eric hagemann
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p.1 #8 · p.1 #8 · 135mm F2 Missing Screws


update: Talked to Canon parts -- screws are $0.27 each and will be here in a few days.


Jul 24, 2015 at 06:08 PM
EB-1
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p.1 #9 · p.1 #9 · 135mm F2 Missing Screws


dhphoto wrote:
It's been taken apart and not reassembled properly would be my guess. Proceed with caution


That's my feeling. One can only hope that after the screws were removed the repair attempt was aborted without really doing anything.

Back in the early 80s I worked in electronics repair for a while and we would charge an extra "tampering fee" for some fools that attempted home repairs. Missing screws, screws damaged from using incorrect screwdrivers, pry marks, bent/cracked chassis or internal parts, improper reassembly etc. are dead giveaways.

I'd not accept such a used lens without detailed knowledge of the circumstances.

EBH



Jul 24, 2015 at 06:40 PM
qc_mountain
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p.1 #10 · p.1 #10 · 135mm F2 Missing Screws


eric hagemann wrote:
update: Talked to Canon parts -- screws are $0.27 each and will be here in a few days.



Make sure you got a J.I.S. screwdriver.... (( do not use a Philips screwdriver otherwise you will strip them out while tightening the screws ))


Francois




Jul 24, 2015 at 11:06 PM
eric hagemann
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p.1 #11 · p.1 #11 · 135mm F2 Missing Screws


yup -- not my first Rodeo


Jul 25, 2015 at 05:46 AM





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