Fujinon A 180mm f/9

Fujinon A 180mm f/9 is the apochromatic process / macro lens at 180mm — Fujinon's equivalent to the Schneider G-Claron 180, optimized for 1:1 reproduction with usable infinity performance.

Key features

• Mount: Copal 0 shutter (1s to 1/500, X-sync at all speeds)
• Focal length: 180mm
• Maximum aperture: f/9 (slow — typical of process designs)
• Image circle: ~252mm at infinity; ~340mm at 1:1 reproduction
• Optical formula: 6-element/4-group apochromatic dialyte
• Single-coated on most production
• Process / macro optimization — peak performance at 1:1

Use case + rendering

The 180 A is the alternative-process / macro 4×5 + 5×7 lens at portrait-tele focal length. Used by alt-process photographers (cyanotype, palladium, gum-bichromate) for contact-print workflows where the process aesthetic suits older lens character. Sharp at close-focus; usable at infinity.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G — extension rails recommended for close-focus
• Cambo SC / Cambo Calumet 45NX — extension rails strongly recommended
• 5×7 view cameras

Related lenses

• Fujinon AS 180mm f/9 — Apochromatic Super variant
• Fujinon A 240mm f/9 — longer A sibling
• Schneider G-Claron 180mm f/9 — Schneider equivalent (closest match)