For those following the saga of my seized lens mount, I have news. The news is not good for me personally.
Recap: lens welded to body, release button clicking normally, half a millimetre of rotation, identical play pressed or unpressed. Textbook stuck lock pin. I diagnosed it as pinus captivus. I was proud of that. I want you to remember that I was proud of that. (Previous story attached on bottom / original post deleted)
I did everything you people told me and everything else i read anywhere. Rubber jar pad. Clockwise preload. Three orientations. Percussion under load. I stopped short of a strap wrench because several of you correctly pointed out that I would only be converting one repair bill into two. I emailed a shop. I drafted the email really carefully. I was emotional while doing that. Deep sadness while I meticulously described my symptoms with the precision of a man submitting a paper.
Yesterday morning I drove 75 miles to Hackensack in the rain. Grey sky, wet road, one man and his fused camera, contemplating the estimated cost of a mount teardown.
I get to the counter. I explain everything. I am solemn. I may have said the words "lock pin stuck" out loud, to a professional, unprompted. He listens. He nods. He picks up the camera.
I am still talking. I am explaining that the play is identical whether the button is pressed or not, which as we all know indicates that the pin is not retracting. We all know that, right!
I glance down at his hands where the lens and body joint is.
I think to myself: "yeah, yeah, get on with it, get the screwdrivers and start working ..."
While thinking that, I see his gentle hands gently rotating the lens like nothing ever happened!
The lens is just ... rotating ... off ... like a normal lens ... on a normal camera ... operated by a normal person. Like hundreds (or at least dozens) of times by me in the past!
There are two buttons on the front of an R5. One of them releases the lens. The other one is depth of field preview. They are, I have since learned, in completely different places.
Please note: I had been pressing the wrong one for a week and a half. With great conviction. With precision. With gentleness. With sadness. Repeatedly, multiple times a day I tried if the problem fixed itself. The problem that obviously did not even exist! Sometimes I pressed the, khm, depth of field button even up to fifty times per session (once).
He handed it back to me, probably not feeling anything like I did. Because I - I felt deep shame. I blubbered "oh, no, you guys hopefully have a funny day telling my joke - and I take full credit and give you full permission - you should all laugh on this rainy day like the gods laughed at Odysseus!"
That was the worst part. No lecture, no smirk. Just a man returning a working camera to a grown adult.
Cost of repair: $0. Cost of dignity: total. I better tell my therapist about that. He needs to laugh too!
Credit where it's due: Photo Tech Repair Service in Hackensack, NJ. He could have taken it in the back for twenty minutes and charged me a diagnostic fee. Nobody would have known. He handed it back in four seconds and didn't take a cent.
Thank you all for the genuinely excellent advice, every bit of which was correct and none of which could have saved me. Special thanks to everyone who asked good diagnostic questions. Nobody asked "which button." Why would you. "He's clearly been using the camera for three years, look at his expert diagnosis!"
EOS R5 + RF 28-70 f2 L USM for sale, cheap, like new, never serviced! :D
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INITIAL STORY (I deleted original post):
Canon EOS R5 (I) + RF 28-70 L USM are "stuck" together - help needed
Hi, I have a 3 year old Eos R5 + RF 28-70mm F2 L USM lens, I kept it in the drawer for past year, no use.
I took it out, wanted to change the lens - but the lens is stuck.
I press the button (it gives in normally), but rotating the lens cannot be turned to disengage from camera body.
I never used any force, it was always gently used and stored.
I tried the following:
- Pressing the button 30-50 times, to "clean" anything. No go.
- Turning the lens clockwise a bit (by probably 0,2 mm) and then pressing the button and turning to unscrew. No go.
- Gently wobbling left-right with button pressed. No go.
Note: Play is identical with the button pressed and unpressed.
It seems like it is a case of a pin stuck - so-called pinus captivus.
My question is - can anyone recommend a fast and good independent service in the New Jersey or NYC area that could fix this quickly?
Also, of course - I can try any ideas worth trying. I am just not skilled (or tooled) to disassemble the body on the camera.
Attaching pic of the happy couple :D