Cine Lenses

Buying Guide: Cine Lenses

What Makes a Lens a "Cinema" Lens?

Three features define a true cine lens: a de-clicked aperture iris, standard 0.8 mod (or 1.0 mod) focus and iris gear rings for follow focus and remote iris control, and matched focus scales in both feet and meters marked on a barrel large enough to read at a glance. Beyond mechanics, cinema lenses are typically built to tighter optical tolerances — parfocal zoom behavior (maintaining focus through the zoom range), minimal focus breathing (the image doesn't shift in size when pulling focus), and consistent color rendering across a matched set so you can intercut lenses without grade correction.

T-Stop vs. F-Stop

Cinema lenses are rated in T-stops (transmission stops), not f-stops. An f-stop is calculated mathematically from focal length and aperture diameter. A T-stop measures the actual amount of light transmitted through the lens after accounting for glass absorption and reflection losses. Two lenses marked f/2.8 from different manufacturers may transmit slightly different amounts of light, which causes exposure inconsistencies across a set. T-stops eliminate this problem — a T2.8 lens from any manufacturer transmits the same amount of light as any other T2.8 lens. This is essential for multi-camera productions and consistent grade in post.

PL vs. LPL vs. EF Mount for Cinema

PL (Positive Lock) mount is the professional cinema standard used by Arri Alexa cameras and most high-end cinema glass. It's extremely robust, supports large image circles, and carries industry-wide support. LPL (Large Positive Lock) is Arri's updated mount for the ALEXA 35 and LF — it's larger than PL to support bigger image circles and passes lens data digitally. EF and E-mount cine lenses (like the Sigma Cine line or Rokinon/Samyang XEEN series) give shooters cinema mechanics at lower price points on mirrorless and DSLR-based cinema cameras like the BMPCC 6K Pro or Sony FX6. For most indie and commercial production on mirrorless cameras, EF or E-mount cine lenses offer the best balance of cost and compatibility.

Vintage Lenses for the Cine Look

Many cinematographers actively seek vintage photo lenses — Soviet-era Helios glass, Canon FD, Leica-R, Contax Zeiss, or Nikon AI lenses — for their "character": gentle swirly bokeh, lower contrast rendering, longitudinal chromatic aberration, and a warmth that modern hyper-corrected lenses lack. Rehoused vintage sets from companies like TLS, Leica, and IronGlass take vintage glass and rebuild it with matched cinema mechanics and consistent focus scales, preserving the rendering while adding professional usability.

Sigma Cine vs. Rokinon XEEN vs. Cooke — Choosing by Budget

Rokinon XEEN primes are the entry point for true cine mechanics — de-clicked, geared, matched, and available in PL and EF mounts starting well below $1,000 per lens. Sigma Cine FF Classic primes offer superb optical performance with Sigma's Art-level glass in a cine housing — excellent for productions that want modern full-frame coverage at accessible prices. At the top end, Cooke S4/i, Zeiss Supreme, and ARRI Signature primes are the industry benchmarks for big-budget narrative and commercial work — optically character-rich, mechanically bulletproof, and priced accordingly.