Schneider Super-Symmar HM 150mm f/5.6

Schneider Super-Symmar HM 150mm f/5.6 is the high-modulation-transfer 4×5 normal plasmat — same focal length as the standard Apo-Symmar 150 with HM optimization for higher MTF and finer detail resolution.

Key features

• Mount: Copal 0 shutter (1s to 1/500, X-sync at all speeds)
• Focal length: 150mm
• Maximum aperture: f/5.6
• Image circle: ~254mm at f/22 — covers 4×5 with generous movements; covers 5×7 with movements
• Optical formula: HM-optimized plasmat
• Multi-coating standard

Use case + rendering

The 150 HM is the high-resolution 4×5 normal — the lens chosen by photographers who scan 4×5 negatives at 4000+ dpi or print at 24+ inch sizes. The MTF improvement over the Apo-Symmar 150 is most visible at large print sizes from drum scans of fine-grained films.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G
• Cambo SC / Cambo Calumet 45NX
• Graflex Crown Graphic / Graflex Speed Graphic / Graflex Super Graphic

Related lenses

• Schneider Apo-Symmar 150mm f/5.6 — older standard
• Schneider Super-Symmar HM 120mm f/5.6 — wider HM sibling
• Schneider Super-Symmar HM 210mm f/5.6 — longer HM sibling
• Schneider Super-Symmar XL 150mm f/5.6 — XL sibling