NiSi announced a new 49mm filter adapter for the Ricoh GRIII compact camera. The price is only $19 and Adorama currently has it in stock (check also B&H and eBay). Additional information: Designed for Ricoh GR3 Mount any 49mm circular filter to the GR3 Easy to install Includes adaptor and silver lens ring Aluminium Alloy Construction … Continue reading New: NiSi 49mm filter adapter for Ricoh GRIII cameras