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Olympus OM-D E-M1 The first Micro Four Thirds camera that offers phase detect focusing so you can use Four Thirds DSLR lenses normally as well a Micro Four Thirds lenses.

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Old 1st November 2015
Thomas Westhead Thomas Westhead is offline
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E-M1 and 40-150 f2.8, lens releasing whilst on the move.

Hello all,

Just a quick one, though I may be going Mad but at least 8 times over the last week whilst out shooting with my E-M1 and attached 40-150 f2.8 pro lens I have either looked through the view finder to see a black screen or looked down at the camera/lens comb to see that the lens has begun to be released as if I were going through he motion of swapping lenses.

The black screen actually alerted me today whilst out in the field to the fact that the lens was actually nearly completely turned near to the point of release, Phew I thought as that would have been a huge repair bill for me.

Now I know I am not catching it with hand or the strap as I hold the lens body as I don't trust the strap lugs to do there job, when the lens is locked it is secure with a sure click but the button is very easily pressed with no sure stiffness to it, if anyone has had a similar issue please tell.
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Old 1st November 2015
Imageryone Imageryone is offline
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Re: E-M1 and 40-150 f2.8, lens releasing whilst on the move.

Have you checked the screws in the mounting plates ? I had this trouble with an old E300 and a check found a couple of screws loose.
May not be a solution, but a good, cheap, check
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Old 1st November 2015
Thomas Westhead Thomas Westhead is offline
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Re: E-M1 and 40-150 f2.8, lens releasing whilst on the move.

Hello,

All checked the screws are fine and the lens when mounted clicks nicely just every now and then of late the lens has moved into the released position, I am sure I am not pressing the lens release button and I think that if I were to lightly catch it when handling/using this equipment then it still should not release the lens unless I want to remove said lens.

Should it not be designed that you should have to positively press the lens release button in firmly to then release the lens to be removed.

I just looked at the camera body minus lens and a slight glance of the button and the release pin goes in to release the lens, it must be a design fault ?? Any one else with this problem ?
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Old 1st November 2015
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Iansky Iansky is offline
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Re: E-M1 and 40-150 f2.8, lens releasing whilst on the move.

Scarey, good luck with confirming the problem - hate to think of them parting company!
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Old 1st November 2015
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Re: E-M1 and 40-150 f2.8, lens releasing whilst on the move.

I'm sure you should get this checked out by Olympus ASAP - scary.

I've never had anything like this over decades of Olympus use with long lenses, including the 40-150 Pro with and without teleconverter for hours at a time in all sorts of environments.

I wonder if there's an adjustment problem with the release catch or mechanism?
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Old 2nd November 2015
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Ross the fiddler Ross the fiddler is online now
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Re: E-M1 and 40-150 f2.8, lens releasing whilst on the move.

Does the spring pressure on the release button feel normal or does it feel weak? Is the release pin rounded on the end at all? Is the 40-150 lens showing any signs of wear on the edge of the locking pin hole? Also, can the button get pressed by a divider in your camera bag? All these things could contribute to it occurring.

I know I kept bumping the release button on a previous DSLR model (E520) when the 70-300 lens was attached until I realised it was because of how I held it. Once I was aware of it I changed my hold & the problem went away.
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Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens, MC-14, MC-20, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
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