topic Re: 6D and EF 28-80 2.8/4 L lens in EF & RF Lenses

6D and EF 28-80 2.8/4 L lens

Jugdriver — Fri, 27 Dec 2013 19:26:26 GMT

I am hoping someone can here can help me, I just got a 6D and was wanting to use some of my old lenses with it, one of them is the old EF 28-80 2.8/4L. I took a test shot and the mirror on the 6D hits the back element of the lens which protrudes out about 3mm from the back. I was wondering if anyone has figured out a way to overcome this issue (apart from trying to use an extender tube which will not work)? It is a great lens and I don’t want to buy a replacement if I don’t have to.

Thanks

Re: 6D and EF 28-80 2.8/4 L lens

cicopo — Fri, 27 Dec 2013 23:40:40 GMT

First time I've read about an EF lens not fitting properly on any of the modern DSLR's.

Re: 6D and EF 28-80 2.8/4 L lens

MikeSowsun — Sun, 29 Dec 2013 04:27:59 GMT

Check to see if the plastic baffle around the rear lens opening is seated properly. Other than that, I can not imagine any other reason for any part of your lens to hit the mirror.

Re: 6D and EF 28-80 2.8/4 L lens

Jugdriver — Sat, 28 Dec 2013 19:05:44 GMT

Thanks for the replys. The rear element on my lens prodrudes past the plastic baffle,not quite as far is the lip for the electronic pins but only a couple of mm short. Also when looking at it, the mirror on my old EOS-1 is set back at least 3mm farther in the body than on my new 6D. This is an old lens so I will take closer look and see if something was not seated properly.

Thanks

Re: 6D and EF 28-80 2.8/4 L lens

TCampbell — Sun, 29 Dec 2013 04:03:19 GMT

@Jugdriver wrote:
Thanks for the replys. The rear element on my lens prodrudes past the plastic baffle,not quite as far is the lip for the electronic pins but only a couple of mm short. Also when looking at it, the mirror on my old EOS-1 is set back at least 3mm farther in the body than on my new 6D. This is an old lens so I will take closer look and see if something was not seated properly.

Thanks

JD

Hi JD.

I wonder if you could post a photo of the back of your lens. I've looked for images of the old EF 28-80mm f/2.8-4L ... but the images I find show a lens where the rear elements do not protrude into the camera body.

EF-S lenses normally do protrude back a bit... but not any EF lens that I've seen. I'm wondering if you have a different lens than I've been able to find.

Re: 6D and EF 28-80 2.8/4 L lens

Jugdriver — Fri, 03 Jan 2014 23:30:41 GMT

Sorry for the delay in posting, the holidays have been hectic. As an update after reading your posts I decided to give the lens a good cleaning, especially the baffle and electronic pins and I took some more test shots, they all came out fine, so the problem I was experiencing (the first shot I took only have a sliver of an image) is no longer happening.

Here are some shots of the rear element of the lens, I was focusing on trying to show the protrusion so the quality is not super, and of course the lens I was shooting is the one I would use to take such a shot..

Thanks

Re: 6D and EF 28-80 2.8/4 L lens

cicopo — Sat, 04 Jan 2014 00:19:26 GMT

Looks like a normal EF mount to me.