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Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

Started Apr 26, 2019 | Discussions
grinbo New Member • Posts: 6
Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

Hello. I've recently bought new lens Canon 35 mm F1.4L II USM. First thing: loose focus ring (longitudinal play). Like on video here: https://www.youtube.com/watch?v=w-2QGo2a5ZE .I asked official repair center about this problem. Answer was - "no problem". Second: I hear some strange sound when little shake lens up and down, like loose part inside. When I put the focus ring in infinity position sound is disappear. I bought the lens directly from the manufacturer. I have another lens, but all of them have image stab system. I thought, that prime lens without IS must be absolutely quiet inside.

Please, owners of this lens, can you check your lens for this "problem"?

I want to know, problem or not...

Arthur Stanley Jefferson Contributing Member • Posts: 809
Re: Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

Hi, did you make that video of the lens fault?

I used my 35 f1.4 mk2 a few days ago and did not notice any movement or noise with my lens.

I'll check and post if I do notice anything similar.

 Arthur Stanley Jefferson's gear list:Arthur Stanley Jefferson's gear list
Canon EOS 5D Mark III Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM Canon EF 100mm f/2.8 Macro USM Canon EF 70-200mm F4L IS USM +4 more
Ray Chen Veteran Member • Posts: 9,652
Re: Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

I shook mine as hard as I can, and the only noise was from the hood.  When I held on to the hood and shook, it was rock solid.

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Ray

 Ray Chen's gear list:Ray Chen's gear list
Canon EF 40mm f/2.8 STM
OP grinbo New Member • Posts: 6
Re: Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

Thanks for your help. I've created the video about my problem and shar it to GDrive: https://drive.google.com/file/d/1o4-mzEug-uPDKioEiH2ufxzzuOjM50d3/view?usp=sharing

WindwardHaole Senior Member • Posts: 1,550
Re: Canon 35 mm F1.4L II USM. Strange sound inside. Bad copy?

Send this video to Canon.

Arthur Stanley Jefferson Contributing Member • Posts: 809
Sounds familiar...

Mine makes a sound if I shake it too. If my thumb is not holding the focusing ring.

I think it’s normal, the lens construction  is amongst one of the best there is according to lens rentals.com.

I don’t tend to shake it much! It doesn’t feel any looser than my other L lenses. It also focuses perfectly.

I think it’s nothing to worry about ( and I’m a big worrier!) as long as it’s focusing for you and not getting worse. I believe Canon offered 3 year warranty on these lenses when I bought mine.

Keep us informed, good luck

 Arthur Stanley Jefferson's gear list:Arthur Stanley Jefferson's gear list
Canon EOS 5D Mark III Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM Canon EF 100mm f/2.8 Macro USM Canon EF 70-200mm F4L IS USM +4 more
hgredo
hgredo New Member • Posts: 13
Re: Sounds familiar...

Have the same problem. Focus ring loose. Some say its normal, some say i should send it back.

Heres the problem:

https://drive.google.com/open?id=1P3aT6zrtLjfGSXwozfr2TgPGEexaXdCe

I refuse to think this is normal on a premium USD1600+ lens.

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“It is hard to fail, but it is worse never to have tried to succeed.”

 hgredo's gear list:hgredo's gear list
Fujifilm X-Pro2 Fujifilm XF 16mm F1.4 R WR XF 90mm Fujifilm XF 35mm F2 R WR Nokia Lumia 925
Arthur Stanley Jefferson Contributing Member • Posts: 809
Some more discussions here...

https://www.fredmiranda.com/forum/topic/1507508/0

They conclude it’s not an issue to worry about

 Arthur Stanley Jefferson's gear list:Arthur Stanley Jefferson's gear list
Canon EOS 5D Mark III Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM Canon EF 100mm f/2.8 Macro USM Canon EF 70-200mm F4L IS USM +4 more
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