Rodenstock's premium large format standard — the Sironar-N 150mm for professional 4x5 work.
The Rodenstock Sironar-N 150mm f/5.6 is a premium large format lens for 4x5 photography from the German manufacturer Rodenstock. The Sironar-N is Rodenstock's plasmat-type design — providing excellent image quality with a wide image circle for camera movements. One of the most popular standard lenses for professional 4x5 work.
Optical performance is outstanding — the Sironar-N is one of the finest 150mm options for 4x5. The plasmat design provides excellent sharpness with a large image circle enabling generous tilt, swing, rise, fall, and shift movements. The wide image circle is the key advantage over Tessar-type alternatives. German Rodenstock precision.
Large format mount — typically in a Copal 0 or 1 shutter. Weight varies. Build quality is outstanding Rodenstock German precision. The Sironar-N provides a larger image circle than Xenar or Tessar alternatives — enabling more camera movements. The N designation indicates the standard version (the Apo-Sironar is the premium tier).
Available at moderate prices — one of the most popular 4x5 lenses. Check shutter and optics. A benchmark standard lens for 4x5. The generous image circle enables professional movements. The Apo-Sironar is better; the Sironar-N is the excellent standard tier. Only for large format photographers.