Goerz Wide Angle Dagor 90mm f/8

Goerz Wide-Angle Dagor 90mm f/8 is the historic American wide-angle LF lens — the Wide-Angle Dagor lineage descends from C.P. Goerz's 1892 Dagor symmetric anastigmat formula. Among the oldest LF lens designs still in active use.

Key features

• Mount: Barrel (no shutter — uses camera body shutter or accessory shutter)
• Focal length: 90mm
• Maximum aperture: f/8
• Image circle: ~155mm at f/22 — covers 4×5 with limited movements
• Optical formula: Symmetric anastigmat (Goerz Dagor lineage)
• Single-coated typical (unfinished older examples)

Use case + rendering

The 90 Wide-Angle Dagor is the historic American 4×5 wide — used by alternative-process and large-format-historian photographers for the older lens character. Barrel mount means no built-in shutter — used with focal-plane shutter cameras (Speed Graphic) or accessory shutter assemblies. Used examples scarce; pricing reflects historical value.

Compatible cameras

• Graflex Speed Graphic — focal-plane shutter compensates for barrel mount
• View cameras with appropriate lens board (manual exposure timing required)

Related lenses

• Goerz Wide-Angle Dagor 111mm f/8 — longer Wide-Angle Dagor
• Goerz Wide-Angle Dagor 165mm f/8 — longer Wide-Angle Dagor