I can't accept m43 mount.

CharlesB58 wrote:

There are no optical elements in the adapter to introduce anomalies.

The slightly smaller mount diameter likewise has no bearing on optical quality and if anything can make for more robust mount.

As has been pointed out, experienced photographers carry any large lens by the lens, or use a monopod/tripod.

Finally: why ask people about using a lens such as the 35-100 on m4/3, which many people do, and then come to an unsupported conclusion? If you haven't done it yourself, don't say it won't work.

Olympus visionary Jay Dickman has been using his 35-100 on m4/3 since the first PEN came out. I've seen photos and videos of him doing so. He holds that combo by the lens, and in one video I saw remarked how he likes the handling of a PEN on that particular lens because it adds so little weight.

BTW, many years ago when Nikon came out with the compact FM, Nikon owners said basically the same thing: the smaller FM wasn't robust enough to handle some of the big lenses. Then, as now, they were people who didn't know how to properly carry their gear.

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