You will never have to worry about cost because iPrice has 70% on Converters in Singapore. Converters has tons of products to offer including Sigma Mount Converter MC-11 for Mounts to Sony E, Fisheye Converter SEL057FEC Full Frame Fisheye Perspective Camera Lens Converter Compatib and For Olympus PEN and OM-D PRO HD 0 45x Wide Converter Lens 37mm. When you talk about Converters in Singapore , you can get the best prices from ZOC, Magic Cube and LensCoat. If you need to buy a Converters, you can get it for the best price from S$ 4.00 to S$ 1,885.00. Maybe the best thing about Converters is that you can purchase them in different set of colors like Orange, Grey and Black.