Schneider Macro Symmar HM 120mm f/5.6

Schneider Macro-Symmar HM 120mm f/5.6 is the macro-optimized 4×5 plasmat — engineered for 1:1 to 1:5 reproduction ratios with peak MTF at close-focus distances rather than at infinity. The HM designation indicates the high-modulation-transfer optimization.

Key features

• Mount: Copal 0 shutter (1s to 1/500, X-sync at all speeds)
• Focal length: 120mm
• Maximum aperture: f/5.6
• Image circle: ~96mm at 1:1 reproduction; ~192mm at infinity
• Optical formula: HM-optimized macro plasmat with floating-element close-focus correction
• Multi-coating standard
• Optimized for close-focus — peak performance at 1:1 to 1:3 reproduction ratios

Use case + rendering

The 120 Macro-Symmar HM is the professional product / commercial macro 4×5 lens. Compared to the standard Apo-Symmar 120 (optimized for infinity), the Macro-Symmar gives demonstrably better detail and field-flatness at close-focus distances — invaluable for jewelry, watch, food, and small-product photography where ultra-fine detail matters.

The lens still functions at infinity but its design optimization is squarely in the close-focus range.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G — bellows extension capability essential for close-focus
• Cambo SC / Cambo Calumet 45NX — extension rails strongly recommended
• 5×7 + 8×10 view cameras for medium-format-equivalent macro

Related lenses

• Schneider Macro-Symmar HM 180mm f/5.6 — longer macro sibling
• Schneider Apo-Symmar 120mm f/5.6 — infinity-optimized alternative
• Schneider G-Claron 150mm f/9 — process-lens macro alternative