don't have a TTL flash for the LX. It's not useless, it just requires a bit more care. That said I'd go
with the non variable f-stop and better manual focusing on the M if I weren't carrying an auto focus lens.
Frantisek Vlcek wrote:
The F is a variable aperture zoom, that means it is _useless_ on both MX and LX in manual mode. Presto. Take the M - it is a very good zoom. With the F, you will get _wrong_ exposure during zooming unless in auto mode.
Fra