LEE Filters Sepia No. 3 100 x 150mm SL-42 Compatible with LEE Filters and Cokin's general 2mm thick resin filter trays. Compatible with LEE Filters LEE 100 filter holders, etc. Both new and old types are compatible. LEE Filters is mainly a still photography filter manufacturer. Movie filters such as Tiffen and Schneider, which are 4mm thick glass filters (4 x 4" / 4 x 5.65"), are mostly the same size but are different due to their 4mm thickness. We will ship with a tracking number within 24 hours of purchase.