Calumet Caltar HR 180mm f/5.6

Calumet Caltar HR 180mm f/5.6 is the high-resolution Caltar 4×5 portrait / 5×7 normal — Calumet-branded Rodenstock Apo-Sironar-S 180 OEM.

Key features

• Mount: Copal 1 shutter (1s to 1/400, X-sync at all speeds)
• Focal length: 180mm
• Maximum aperture: f/5.6
• Image circle: ~252mm at f/22 — covers 4×5 with generous movements; covers 5×7 with movements
• Optical formula: Rodenstock Apo-Sironar-S OEM
• Multi-coating standard

Use case + rendering

The 180 Caltar HR is the highest-MTF Caltar 4×5 portrait + 5×7 normal. Direct equivalent to Rodenstock Apo-Sironar-S 180.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G
• Cambo SC / Cambo Calumet 45NX
• 5×7 view cameras

Related lenses

• Rodenstock Apo-Sironar-S 180mm f/5.6 — Rodenstock equivalent
• Calumet Caltar HR 150mm f/5.6 — wider HR sibling
• Calumet Caltar HR 210mm f/5.6 — longer HR sibling