Lomo Square-Front Anamorphic 50mm T2.5

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The 50mm (35BAS4 family, f/2, about T2.5) weighs between 1.6 and 1.9 kg depending on version, and minimum focus is long at roughly 1.5 m. First-generation Soviet 2x anamorphics with a rectangular front housing. Loved for wild flares and a very vintage image, but focus breathing is heavy and the dual-focus mechanics are fiddly compared with the later round-fronts. Super 35 (4:3) coverage only.

Key specs

Focal length

50 mm

Max aperture

T2.5

Mount

OCT-19 (Lomo / Konvas), PL

Image circle

Super 35

Close focus

1.6 m

Anamorphic squeeze

2x

Field of view by sensor

Full frame

71.5° horizontal · frames like 25 mm on full frame

Super 35

52.9° horizontal · frames like 36.1 mm on full frame

Micro Four Thirds

38.2° horizontal · frames like 52 mm on full frame

What it goes on

Found in OCT-18 and OCT-19 mounts; later single-block OCT-19 versions are the practical ones and are commonly hard-converted to PL with added 0.8 gears. OCT-19 also adapts to mirrorless mounts. The square front needs a clamp adapter or rod-mounted matte box.

• PL camerasNativeALEXA 265, ALEXA 35, PYXIS 12K, PYXIS 6K +15 more
• Sony E camerasWith adapterRonin 4D-6K, Ronin 4D-8K, Alpha 1 II, Alpha 7 IV +13 more

  Wooden Camera E to PL · Vocas PL to E · Metabones PL-E. Solid and common. Support the lens — the E-mount is not built to carry a heavy cine zoom on its own.

• Canon RF camerasWith adapterEOS C400, EOS C50, EOS C70, EOS C80 +10 more

  Wooden Camera RF to PL · Canon PL-RF (C400 / C80) · Kipon PL-RF. Common; use lens support with heavy glass.

• L-Mount camerasWith adapterCinema Camera 6K, PYXIS 12K, PYXIS 6K, Ronin 4D-6K +6 more

  Leitz L-PL · Wooden Camera L to PL · Sigma MC-31. Common; use lens support with heavy glass.

• Micro Four Thirds camerasWith adapterMicro Studio Camera 4K G2, Pocket Cinema Camera 4K, Lumix BGH1, Lumix GH6 +1 more

  Wooden Camera MFT to PL · MTF PL to MFT. Works, with a 2x crop on Super 35 glass relative to full frame.

• LPL camerasWith adapterALEXA 265, ALEXA 35, ALEXA Mini LF, URSA Cine 17K 65

  ARRI PL-to-LPL Adapter. ARRI's own adapter, passes LDS / Cooke /i lens data.

• Nikon Z camerasWith adapterKOMODO-X 6K S35, V-RAPTOR [X] 8K VV, V-RAPTOR XE

  Wooden Camera Z to PL · Kipon PL-NIK Z. Common; use lens support with heavy glass.

• Canon EF camerasWith adapter· by flange mathsALEXA 265, ALEXA 35, ALEXA Mini LF, Pocket Cinema Camera 6K G2 +14 more

  17 mm of room for a plain ring. Check rear-element and mirror clearance before buying.

• Leica M camerasWith adapter· by flange mathsALEXA 265, ALEXA 35, ALEXA Mini LF, Ronin 4D-6K +1 more

  33.2 mm of room for a plain ring. Check rear-element and mirror clearance before buying.

• B4 (2/3") camerasWith adapter· by flange mathsURSA Broadcast G2, URSA Mini Pro 4.6K G2, AJ-CX4000

  13 mm of room for a plain ring. Check rear-element and mirror clearance before buying.

• Nikon F camerasWith adapter· by flange mathsURSA Mini Pro 12K, URSA Mini Pro 12K OLPF, URSA Mini Pro 4.6K G2

  14.5 mm of room for a plain ring. Check rear-element and mirror clearance before buying.

See every camera this lens fits →

Sources: reduser.net, rafcamera.com, sharegrid.com