No, this is a fully manual cine lens. It features geared rings for manual focus and manual aperture control, making it ideal for use with follow-focus rigs.
Yes, the Samyang 24mm T1.5 is designed for full-frame sensors but can also be used on APS-C and Micro Four Thirds cameras with a crop factor.
While f-stops measure physical aperture size, T-stops (Transmission stops) measure the actual amount of light reaching the sensor, providing more accurate exposure for video.