Sirui's ultra-fast cinema prime for APS-C — the 55mm T1.2 Nightwalker for L-Mount video shooters.
The Sirui Nightwalker 55mm T1.2 is a fast cine prime from Sirui's Nightwalker series — T1.2 is the cinema-standard transmission-stop rating. L-Mount.
55mm focal length. T1.2 maximum aperture (cinema T-stop). Cine prime. Manual focus. L-Mount.
The Sirui Nightwalker series offers affordable cine primes with consistent T-stop ratings and cinema-standard build (de-clicked aperture, focus pull markings). The 55mm covers standard focal length for cine work. T1.2 is very fast — useful for available-light cinematography. Available in multiple mounts; this entry is L-Mount.
On the used market the Sirui Nightwalker 55mm T1.2 is an affordable cine prime. Condition checks: de-clicked aperture, focus pull mechanism. L-Mount.