Rodenstock APO-Sironar S 240mm f/5.6

Rodenstock Apo-Sironar-S 240mm f/5.6 is the refined high-MTF 5×7 short-tele / 8×10 normal flagship.

Key features

• Mount: Copal 1 shutter (1s to 1/400, X-sync at all speeds)
• Focal length: 240mm
• Maximum aperture: f/5.6
• Image circle: ~340mm at f/22 — covers 5×7 with generous movements; covers 8×10 with movements
• Optical formula: Refined apochromatic plasmat with high-MTF optimization
• Multi-coating standard

Use case + rendering

The 240 Apo-Sironar-S is the highest-MTF Rodenstock 5×7 + 8×10 short-tele. Apochromatic correction + high-MTF optimization for color landscape and architectural work.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G
• Cambo SC / Cambo Calumet 45NX
• 5×7 + 8×10 view cameras

Related lenses

• Rodenstock Apo-Sironar-N 240mm f/5.6 — standard Apo-Sironar
• Schneider Apo-Symmar 240mm f/5.6 — Schneider equivalent