Goerz Red Dot Artar 270mm f/9.5

Goerz Red Dot Artar 270mm f/9.5 is the Artar process lens at 8×10 normal-class focal length — for 8×10 alternative-process work.

Key features

• Mount: Copal 1 shutter (1s to 1/400, X-sync at all speeds)
• Focal length: 270mm
• Maximum aperture: f/9.5
• Image circle: ~340mm at infinity; ~480mm at 1:1
• Optical formula: Apochromatic dialyte (Artar)
• Single-coated typical

Use case + rendering

The 270 Red Dot Artar is the Goerz Artar at 8×10 normal-class — used by alternative-process 8×10 photographers for cyanotype, palladium, gum-bichromate contact prints.

Compatible cameras

• 8×10 + 11×14 view cameras

Related lenses

• Goerz Red Dot Artar 210mm f/9 — wider Artar
• Goerz Red Dot Artar 355mm f/9 — longer Artar