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New Contributor
Posts: 2
Registered: ‎05-10-2018

Power Diaphragm Unit EF100/2.8

Hi guys,

 

After having issues with the aperture of the above lens I did some research to find out that this is a well known problem and I have changed the Power Diaphragm at the Canon shop.

 

Now I'm wondering if this is a problem that is bound to happen again? Or is this resolved now that the power diaphragm has been changed.

 

So is this a problem with the initially installed power diaphragm or is there also a change it happens with this new one?

 

Thanks for your reply.

 

Best regards

 

Vincent

Esteemed Contributor
Posts: 4,291
Registered: ‎06-25-2014

Re: Power Diaphragm Unit EF100/2.8

I read this forum pretty consistently, and it's the first time I've seen that issue raised. When there's a prevalent problem, like the circuit board failure on the 70D, we usually hear about it. I think I'd chalk it up to bad luck and not worry about it too much.

Bob
Boston, Massachusetts USA
VIP
Posts: 9,053
Registered: ‎12-07-2012

Re: Power Diaphragm Unit EF100/2.8

Agree, don't "worry about it too much."

A lot less stuff for 2018 but still a lot of Canon stuff. Along with, a lot of other stuff.
New Contributor
Posts: 2
Registered: ‎05-10-2018

Re: Power Diaphragm Unit EF100/2.8

I found that on other places on the web indeed. Not here on Canon.

 

So I didn't make this up  Smiley Happy

 

I got it fixed but then I was wondering if this was a recurring problem or not.  As I have another lense that is exactly the same and I was afraid that one was going to get the same issue.

 

Thanks for your input guys. Much appreciated

 

Vincent

VIP
Posts: 9,053
Registered: ‎12-07-2012

Re: Power Diaphragm Unit EF100/2.8

I used one for a few years and it never acted up or failed.  So there you go, just use it and forget it.

A lot less stuff for 2018 but still a lot of Canon stuff. Along with, a lot of other stuff.
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