Focus Motor: STM+Lead screw. Aperture: F2.0-F16. Number of Aperture Blades: 9. Godox X3 TTL HSS Touch Screen Trigger Transmitter for Canon Nikon Sony Fujifilm 76.54 USD. Focal Length: 50mm. US Comica CVM-VM30 2.4G Super Cardioid Condenser Wireless Shotgun Microphone 152.10 USD.