[marknorton]

Hopefully, this thread can discuss these new findings without flaming. If you don't like the fact that Sean charges for access, don't read further. My view is that annual dues of 1/4 of a 486 filter (and I need 13 of them) is money well spent.

It's clear than a side effect of using the 486's is cyan colour close to the edges which lens coding would allow the camera to clean up. I agree that Leica should provide manually selected generic settings for the wide-angles they have traditionally supplied - 21, 24, 28. I don't think it's reasonable to expect them to pander to the Zeiss 15 and the CV 15 cannot take filters anyway.

The lens coding may be able to tell them what lens is mounted but not of course whether there's a 486 on the front. That will need an extra option in the lens recognition menu - Off, On, On + 486, Generic 21, Generic 24, Generic 28.

I come back to the idea that every new lens and every coding should include a filter and for the new TE, also the filter adapter, always though it was penny-pinching to charge for it when this lens costs a whopping €3500.