topic Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be? in EF & RF Lenses

EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

cser — Tue, 03 May 2016 02:56:32 GMT

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

jrhoffman75 — Tue, 03 May 2016 10:19:02 GMT

Exactly what is happening/not working?

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

ebiggs1 — Tue, 03 May 2016 14:15:22 GMT

A lot more info is needed. If it won't AF, it is probably toast and is kaput. Did you drop it or get it wet?

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

kvbarkley — Tue, 03 May 2016 14:25:16 GMT

Assuming he can see through it, it is either the focus, the IS or the aperture, all of those scream "Send me back to Canon!"

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

cser — Tue, 03 May 2016 16:19:20 GMT

This is me replying back to everyone who responded. THANK YOU! Nothing happened to it. It was in the bag and I had not used it for a while. It just doesn't work. It isn't the camera because other lenses work. It almost doesn't seem to be getting power - it will not focus - I say almost because sometimes it makes a little sound like it is "trying" to work. I cleaned the connections... not sure what else to do...

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

jrhoffman75 — Tue, 03 May 2016 16:23:29 GMT

Does it have a MF/AF switch. Cycle the switch a few times. If you are in MF can you turn the focus ring?

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

cser — Tue, 03 May 2016 20:55:53 GMT

It does have the mf/af ring. I will try it when I get home. Thanks.

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

cser — Wed, 04 May 2016 14:43:14 GMT

I cycled the switch. The ring does turn in MF but not easily... Feels/sounds like something in there...kind of gritty

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

jrhoffman75 — Wed, 04 May 2016 14:51:32 GMT

Most likely needs service then. But, it may be less expensive to replace the lens. Give Canon service a call and see if they have a flat rate repair fee or can ballpark you a repair cost. Then, go to the Canon eStore and check out refurbished lenses.

Re: EF 70-300mm lens has stopped working. Any ideas on what the problmen might be?

Waddizzle — Wed, 04 May 2016 15:25:34 GMT

Check out this thread.

http://community.usa.canon.com/t5/Lenses/Autofocus-not-working-18-55mm-lens/m-p/138114#U138114

Your lens just may have a similar issue. If not, contact Canon service. I agree, a new lens of the same type just be less inexpensive than a repair. What does that say to you about the quality of the lens?