This Lens Cap from NiSi is for the Ricoh GR IV compact camera body. Protect your camera's front element from scratches and dust.The interior fabric lining prevents metal-on-metal scraping. Use in tandem with the NiSi 49mm filter adapter, NiSi and standard GN-3 rings, as well as select 49mm filters. Please note that thick filters such as VNDs and CPLs might not be supported by this cap. It is not compatible with GR III models.