SONY's teleconverter SEL20TC for E-mount (List price: 77,000 yen). Only used a few times, in excellent condition. Accessories include: Instruction manual, box, case. Stored in a dehumidified storage. Also selling on other apps, so please forgive me if it sells out. ★Product Details★ ● High-performance teleconverter that extends the focal length of the lens by 2.0x ● Achieves high descriptive performance and high-speed AF performance even when the teleconverter is attached ● Designed with dust and moisture resistance in mind, similar to the lens body ■Compatible lenses FE 70-200mm F2.8 GM OSS (SEL70200GM) FE 70-200mm F2.8 GM OSS II (SEL70200GM2) FE 100-400mm F4.5-5.6 GM OSS (SEL100400GM) FE 200-600mm F5.6-6.3 G OSS (SEL200600G) FE 400mm F2.8 GM OSS (SEL400F28GM) ※FE 600mm F4 GM OSS (SEL600F40GM) Due to the lens configuration, SEL70200G and LA-EA4 cannot be used because there is a risk of damage due to contact with the rear lens element or the translucent mirror. If a lens or accessory that is not compatible is attached, it will not be recognized as a lens on the body side, and the aperture value display on the camera side will be "- -". (AE/AF will not function) ★Specifications★ Name: 2X Teleconvertor Model Number: SEL20TC Lens Mount: Sony E-mount Compatible Image Sensor Size: 35mm full-frame lens Construction (groups-elements): 5-8 External Dimensions (Maximum Diameter x Length (mm)): 62.4 x 42.7 (Total Length) 62.4 x 27.2 (Mount Standard) Weight: Approx. 207g Accessories: Lens front cap Lens rear cap ALC-R1EM Soft case Mount: αE mount series Full-frame compatible: Yes 2x Teleconverter Brand: Conversion lens type: Name: 2X Teleconvertor Model Number: SEL20TC Lens Mount: Sony E-mount