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Horseman - 45mm f/4.5 Apo-Grandagon Lens Unit for 612
B&H# HO5545AGSW Mfr# 21364
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The Horseman 55mm f/4.5 Apo-Grandagon Lens is a Rodenstock 55mm f/4.5 Apo-Grandagon with a standard Copal #0 shutter, but built into a Horseman-specific helical focusing mount and barrel assembly made to fit upon their SW612/SW612 Professional medium format cameras. Used with a 6x12 film back, this lens produces a 91° x 53° field of view, and upon the 612 cameras the helicoid focusing mount allows a minimum focusing distance of 2' (0.6m). Generous amounts of shift are also permitted (only on the 612 Professional).

The 55mm f/4.5 Apo-Grandagon incorporates ED (Extra-low Dispersion) glass, to make truly apochromatic resolution from a wide angle lens possible for the first time. Its large maximum aperture of f/4.5 makes adjustments easier on the ground glass, and the f/11-16 working aperture allows shorter exposure times in outdoor work. The use of the optional #29225 center filter (HOCF67P2.5) is recommended for critical work, especially with transparencies.


A Rodenstock 55mm f/4.5 Apo-Grandagon with standard Copal #0 shutter, built into Horseman-specific helical focusing mount/barrel assembly
Exclusively made to fit SW612/SW612 Professional medium format cameras
Produces a 91° x 53° field of view when used with 6x12 film back
Minimum focusing distance of just 2' (0.6m)
Extremely fine resolving power when stopped down to between f/11-16
ED glass for true apochromatic correction
Large maximum aperture aids focusing in poor light
Optical Construction 8 elements in 4 groups
Aperture Range f/4.5-45
Covering Power 110 degrees
Image Circle @ Infinity 163mm diameter
Shutter Copal #0
Shutter Speed 1-1/500 sec., T, B
Slip-on Cap Sizes 70mm front, 60mm rear
Filter Size 67mmEW
Minimum Focus Distance 2.0' (0.6m)
Weight 1.05 lbs (570g)
Horseman 45mm f/4.5 Apo-Grandagon Lens Unit for 612
  • Copal #0 Shutter
  • Push-On Front & Rear Caps
  • 1-Year Limited Warranty