The Panasonic VW-W4307H Wide Conversion Lens attaches via 43mm filter thread and multiplies the focal length 0.7x, for a wider angle-of-view. Compatible cameras include – but are not limited to – the following Panasonic camcorders: HDC-TM300S, HDC-TM20K8, HDC-TM300K, HDC-TM20S, HDC-TM20R, HDC-TM20K, HDC-SD20S, HDC-SD20R, HDC-SD20K, HDC-HS250K, HDC-HS300K, HDC-HS300S.