1set 52mm 0.45x Wide Angle Macro Lens For Nikon D3200 D3100 D5200 D5100 Hot Worldwide - Lens Adapter - AliExpress
Amazon.com : Camera Lens 52mm Wide Angle Lens 0.45X Wide Angle for Close-up Shoot Universal Conversion Macro Lens for Canon a Wider View Than Normal Lens : Electronics
For Nikon DSLR] Emolux PRO HDII Scenic 0.45x ULTRA Wide Converter DSL – altasfoto