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[OM] mount tolerance on M4/3 third party lenses?

Subject: [OM] mount tolerance on M4/3 third party lenses?
From: Paul Haigney <lensmanten@xxxxxxxxx>
Date: Thu, 27 Mar 2025 13:02:03 +0000
Greetings, There are 6 Olympus Pen digital cameras in my house, a mixture of E-Ps - E-PLs , 4 are my own & the remaining 2 owned by my Wife & Daughter.

The borrowing of my lenses is a regular occurrence & as we know the standard 14-42 kit lens is not the most sturdy item & a number of these haven’t lasted the pace which

is the reason for the regular borrowing episodes.

I decided to indulge myself with a new lens the YONGNUO YN17mm F1.7 Auto Focus, my plan was put this on the 'NO BORROW' list but there's a spanner in my plan.

The recessed hole in the lens mount seems to be either too shallow or too narrow & doesn’t allow the spring pin in the camera mount to fully protrude & activate the sensor

which results in a black LCD screen.

This only happens with 3 of the Pens whilst 3 work fine.

It's a physical defect in the lens mount but the seller & manufacturer & referring me to a comparability list which only lists the newer Olympus & Panasonic cameras, this is BS

of course because the M4/3 standard is a universal design or is supposed to be.

My question to the group is can this spring pin on the camera mount be disabled in the menu? I have the tools & expertise to remedy the lens myself but that would be the last

resort.


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