Schneider's standard large format lens — 210mm f/5.6 APO for 4x5 and 5x7 photography.
The Schneider Apo-Symmar 210mm f/5.6 is a standard large format plasmat-type lens with apochromatic correction — a reference-grade general-purpose lens for 4×5 format photography. APO = apochromatic; Symmar = Schneider's plasmat formula. No standard camera mount — Copal shutter mount.
f/5.6 maximum aperture. 210mm focal length (large format standard prime). APO apochromatic plasmat formula. Copal shutter mount (No.1 typically). Covers 4×5 with moderate movements. Standard reference lens for 4×5.
The Apo-Symmar 210mm is a standard workhorse for 4×5 large format — 210mm is approximately equivalent to 60mm on 35mm full-frame, providing a moderate telephoto perspective. APO correction provides accurate colour rendering and high resolution. The Symmar plasmat formula performs well from close focus to infinity.
On the used market the Schneider Apo-Symmar 210mm f/5.6 is a classic reference 4×5 large format standard lens. Condition checks: glass elements condition, Copal shutter at all speeds, coatings condition. No standard photographic mount — Copal No.1 lensboard.