Calumet Caltar II 135mm f/5.6

Calumet Caltar II 135mm f/5.6 is the slightly-wide-of-normal Caltar 4×5 plasmat — Calumet-branded Rodenstock Apo-Sironar-N 135 equivalent.

Key features

• Mount: Copal 0 shutter (1s to 1/500, X-sync at all speeds)
• Focal length: 135mm
• Maximum aperture: f/5.6
• Image circle: ~210mm at f/22 — covers 4×5 with generous movements
• Optical formula: Rodenstock Apo-Sironar-N OEM
• Multi-coating standard

Use case + rendering

The 135 Caltar II is the modern Caltar 4×5 wide-of-normal — Rodenstock-grade glass at the Caltar price.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G
• Cambo SC / Cambo Calumet 45NX
• Graflex Crown Graphic / Graflex Speed Graphic / Graflex Super Graphic

Related lenses

• Rodenstock Apo-Sironar-N 135mm f/5.6 — Rodenstock equivalent
• Calumet Caltar S 135mm f/5.6 — Schneider-OEM Caltar at same FL