PrimeCircle XT 21mm F2.8 Specifications
4K analog/digital limited (dumb mount - aperture priority or manual modes only)
Horizontal Angle of View:
Number of Aperture Blades:
internal focus mechanism with floating elements, manual focus only
Mat Box (optional)
2012 by LockCircle
The PrimeCircle XT mods were based on ZF.2 lenses using the patented X-Circle EF Mount with Cine Lock (dumb mechanical mount). All lenses feature Side View Index (sideways orientation of aperture and focus scales) and a focus gear of 0.8 Mod standard.