PANASONIC LUMIX G LEICA DG MACRO-ELMAR LENS, 45MM, F2.8 ASPH., PROFESSIONAL MIRRORLESS MICRO FOUR THIRDS, MEGA OPTICAL I.S., H-ES045 (USA BLACK) : Compact System Camera Lenses : Electronics - Amazon.com
Panasonic LEICA DG MACRO-ELMARIT 45mm F2.8 ASPH. MEGA O.I.S. Review | Photography Blog
The Panasonic GX7 & Leica 45mm f/2.8 Macro: An excellent combo!