topic Re: lens won't work in EF & RF Lenses

lens won't work

Zalan — Thu, 27 Nov 2014 23:04:13 GMT

I have a 24 - 105 USM lens on my Canon 5D
It now only works on 24 mm. On any other zoom setting, the mirror goes up but won't come back down until I switch the camera off.

The problem is connected to the fact that the depth of field preview button doesn't work either. Pressing it closes the iris, but it gets stuck and won't release.

Do not reply to this message unless 1) you have had experiance of this problem and 2) you can suggest what I might try myself for a simple fix.

Thanks.

Re: lens won't work

jrhoffman75 — Sat, 29 Nov 2014 01:22:12 GMT

Have you tried a different lens?

Re: lens won't work

Zalan — Sat, 29 Nov 2014 01:33:25 GMT

@jrhoffman75 wrote:
Have you tried a different lens?

Yes, the problem does not appear with a different lens.

Re: lens won't work

jrhoffman75 — Sat, 29 Nov 2014 01:35:41 GMT

Try cleaning lens contacts and if that doesn't work it I would send it to Canon. If its not under warranty Canon will give you a quote to fix.

Re: lens won't work

Zalan — Sat, 29 Nov 2014 01:41:55 GMT

@jrhoffman75 wrote:
Try cleaning lens contacts and if that doesn't work it I would send it to Canon. If its not under warranty Canon will give you a quote to fix.

Thanks, I tried the contact cleaning. No luck.

A startling number of peopls have experienced this same failure.

Anyone out there get theirs fixed?

Re: lens won't work

jrhoffman75 — Sat, 29 Nov 2014 02:21:28 GMT

Never saw anything about this before, but I found this:

http://www.amateurphotographer.co.uk/forums/showthread.php?91405-EF-24-105L-f4-IS-USM-Err-01-quot-L-is-not-for-Long-Lasting-quot

Re: lens won't work

Zalan — Sat, 29 Nov 2014 02:29:06 GMT

@jrhoffman75 wrote:
Never saw anything about this before, but I found this:

http://www.amateurphotographer.co.uk/forums/showthread.php?91405-EF-24-105L-f4-IS-USM-Err-01-quot-L-is-not-for-Long-Lasting-quot

That's the same problem all right. Mine also shows Error 01, which I should have mentioned.

Re: lens won't work

cale_kat — Sat, 29 Nov 2014 03:21:48 GMT

Any indication that Canon can't fix this? Just saying, stuff breaks.

Disclaimer, I have the 5D2 and 24-105.

Re: lens won't work

ebiggs1 — Sat, 29 Nov 2014 14:39:29 GMT

Error 01. Bingo! It means there is a lens communication error.

But you need to call Canon, first, if the problem is in the 5D as I am not sure they still work on it. If it is the lens' fault, they do.

IMHO, it is almost never dirty contacts. But, hey, it is worth a try, it could be.

Re: lens won't work

Zalan — Sat, 29 Nov 2014 14:46:44 GMT

There are Youtube videos of disassembling this lens and replacing the diaphram and flex cable. Scary! I would be sure to lose a vital screw or something.

It is worth a few hundred ti have Canon do the job.

So my next step is to contact them.

Re: lens won't work

ebiggs1 — Sat, 29 Nov 2014 14:49:44 GMT

"So my next step is to contact them." Yes.

Re: lens won't work

Zalan — Fri, 05 Dec 2014 17:47:37 GMT

I took the lens in to a loczl rapir shop. He has done a few of these, so that gives me a bit of confidence.

It is the diaphragm and cable that need replacing

$370

Re: lens won't work

jrhoffman75 — Fri, 05 Dec 2014 18:05:36 GMT

Thanks for feedback. It could be a help to others.

Re: lens won't work

ebiggs1 — Fri, 05 Dec 2014 19:05:12 GMT

"I have a 24 - 105 USM lens ..."

At $370 you are half way, or over, to the cost of a new lens. Not saying just saying.