This is the flip module being used in the Letus35 Extreme. This Flip module was built for those who own a third party upside-down adapter who want to get the image right side up. It features:

• Highest optical grade achromatic lens custom-made for this specific module
• Using prism with proprietary Image Orientation Correction technology (IOC) that flips the image up-right
• Milled from solid aluminum
• Comes with milled aluminum front and back caps match the module body
• Alignment is a breeze with 72mm, 77mm or 82mm ring

Note: This is not the whole 35mm adapter, this is only the FLIP module. For 3rd party "upside-down" adapters such as the SG Pro, Brevis, and Redrock M2. All of the Letus adapters currently offered have the "rightside-up" functionality built in. YOU DO NOT NEED THIS MODULE FOR A LETUS35 ADAPTER.