1) Ricoh DW-6 19mm Wide Conversion Lens
http://leicarumors.com/2009/03/14/another-leica-d-lux-4-mod-ricoh-dw-6-19mm-wide-conversion-lens.aspx/
2) 52mm 2.0x Telephoto for Leica D-LUX4
http://leicarumors.com/2009/03/13/52mm-20x-telephoto-for-leica-d-lux4.aspx/
You can use it o the
Panasonic LX3
.