The Conversion Adapter Kit for using 37mm DSLR/SLR Lenses on Galaxy S4 from Allputer.com takes Samsungβs latest high end smartphoneβs built in camera to the next level. The adapter has been designed as a simpleΒ screw down clamp that fits on the back of the phone and provides a threaded socket for your existingΒ 37mm lenses or filters. It also has a threaded tripod socket. The adapter comes in black or silver and is priced atΒ $10.85. From the looks of it, itβs possible it might work with a variety of similarly sized smartphones.