Fujinon W 135mm f/5.6

Fujinon W 135mm f/5.6 is the classical Fujinon LF plasmat at slightly-wide-of-normal focal length for 4×5 — older single-coated W series, predecessor to the NWS and CM-W lineages. Equivalent to roughly 40mm on 35mm.

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: ~200mm at f/22 — covers 4×5 with movements
• Optical formula: 6-element/4-group plasmat
• Single-coated (older production); some later examples multi-coated

Use case + rendering

The 135 W is the older slightly-wide 4×5 normal — popular on used market for budget-conscious LF photographers. Sharp by f/22; older single-coated examples have lower contrast in backlit conditions vs modern multi-coated NWS / CM-W equivalents.

Compatible cameras

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

Related lenses

• Fujinon W 150mm f/5.6 — true-normal W sibling
• Fujinon CM-W 135mm f/5.6 — modern compact successor