Schneider G-Claron 270mm f/9

Schneider G-Claron 270mm f/9 is the 8×10 + 11×14 alternative-process / macro dialyte — covers 8×10 with movements; covers 11×14 tightly.

Key features

• Mount: Copal 1 shutter (1s to 1/400, X-sync at all speeds)
• Focal length: 270mm
• Maximum aperture: f/9
• Image circle: ~333mm at infinity; ~490mm at 1:1
• Optical formula: 6-element/4-group dialyte
• Single-coated
• Process-lens optimization

Use case + rendering

The 270 G-Claron is the 8×10 alternative-process normal — particularly favored when the 240's 8×10 coverage feels too tight. Many alt-process photographers consider the 270 G-Claron the optimal 8×10 contact-print normal.

Compatible cameras

• Cambo SC / Cambo Calumet 45NX — extended bellows for close-focus
• 8×10 + 11×14 view cameras

Related lenses

• Schneider G-Claron 240mm f/9 — wider G-Claron sibling
• Schneider G-Claron 305mm f/9 — longer G-Claron sibling