Rodenstock APO-Sironar N 135mm f/5.6

Rodenstock Apo-Sironar-N 135mm f/5.6 is the slightly-wide-of-normal apochromatic plasmat — equivalent to roughly 40mm on 35mm. Popular alternative to the 150 normal for photographers who prefer slightly more inclusive framing.

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: Apochromatic plasmat
• Multi-coating standard

Use case + rendering

The 135 Apo-Sironar-N is among the most-recommended modern Rodenstock 4×5 normals — slightly wider than 150, with apochromatic correction for color work. Direct competitor to Schneider Apo-Symmar 135 / Fujinon CM-W 135.

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 150mm f/5.6 — true normal
• Rodenstock Apo-Sironar-S 135mm f/5.6 — refined apochromatic
• Schneider Apo-Symmar 135mm f/5.6 — Schneider equivalent
• Fujinon CM-W 135mm f/5.6 — Fujinon equivalent