Here is a new UV Haze 1 filter for your Canon Canonet GIII QL and GIII QL 17, Canonet Jr., Canonet 28 and probably many more. This is a high quality glass filter, coated on both sides or "double coated" as it is commonly referred to, made by Telesor. The filter is brand new, never used, and threaded on both sides. Many of the earlier Canon cameras use 48mm filters. The GIII are still very popular cameras and widely used by amateurs and professionals alike. Most of the FL lenses and the EX lenses use 48mm filters. This is a great filter to use for landscapes and for people. Most people keep a UV filter on their lenses at all times for protection and to reduce haze in their photos.