Olympus PER-E02 - Lens port extender - for Olympus PPO-E04; PT-E01, E02, E03, E05, E06 - Walmart.com
Olympus, AROMA AUTOMATIC TELE CONVERTER 2X FOR OLYMPUS OM-1 NEW IN BOX WITH CASE, OLYMPUS V-OM ADAPTER IN VERY GOOD CONDITION, OLYMPUS EXTENSION RING 14, OLYMPUS EXTENSION RING 14 WITH BOX, OLYMPUS
Olympus OM TTL Flash Extender #530 | eBay
Olympus EX-25 Extension Tube 261006 B&H Photo Video
Boot Extender For Olympus Models CF-Q160AL, PCF-160AL, CF-Q180AL, PCF-Q180AL
Olympus 150-400mm F4.5 with built-in 1.25x Extender - Newsshooter