Amazon.com : 0.48X High Definition Super Wide Angle Lens w/Macro Compatible with Sony PXW-X70 + 62mm 3 Piece Filter Kit : Electronics
Zunow WCZ-90 4K Wide Conversion Lens + Z58 Adapter Ring
Amazon.com : Sony PXW-X70 with eDigitalUSA Advanced Kit: Includes HD Lenses, Filters, Macro Lenses, Boom Mic, LED Video Light and more... : Electronics
Found a new WA zoom thru for X70 at DVinfo.net
Sony X70 Video Camera Tutorial | UC Berkeley Advanced Media Institute