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Rodenstock 90mm f/4.5 Grandagon-N MC Copal BT (4X5/5X7) (42 MT) Lens

KEH Model# 256773

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Rodenstock 90mm f/4.5 Grandagon-N MC Copal BT (4X5/5X7) (42 MT) Lens Description


The Rodenstock 90mm f/4.5 Grandagon-N Lens is a professional wide angle lens for the 4x5 or 5x7 formats, providing an angle of view on 4x5 which is similar to a 24mm lens in the 35mm format. The Grandagon-N series is an 8-element, highly-corrected optical formula known for great contrast and distortion correction. This is a perfect lens for capturing interior spaces, buildings, landscapes, etc.

The 105° angle of coverage permits a generous 48mm of all-direction shift on the 4x5 format, particularly beneficial when capturing a building from ground level. This lens is recommended for use between f/16 and f/22 apertures.

The Grandagon-N with its wide image angle of up to 105° can really display its strengths in wide views in cramped conditions, e.g. in architecture or industrial photos or in panoramic views.

With the Grandagon-N, all the problems which occur in connection with large image angles have been ideally taken care of: The distortion has been reduced to a small residual value; the light fall-off towards the edges has been greatly reduced thanks to an optical trick ("pupil distortion" = the entrance pupil diameter increases when viewing at an angle); the sharpness sets standards for this class of lenses.

KEH Specifications

  • Focal Length: 90mm
  • Aperture Range f/: 4.5
  • Shutter Type: 45
  • Maximum Recommended Film Format Inches: 4x5 or 5x7 
  • Angle of Coverage at f/22: 105°
  • Image Circle at f/22: 236mm
  • Filter Size: 82mm
  • Weight/Length: 24.7 oz (700g) 3.48 inches
  • Manufacturer/Part#: 160504 V


General information

Brand Name Rodenstock
Manufacturer Part Number 160504
Manufacture GTIN 6389261605044
Product information
Lens Construction
8 Elements in 4 Groups
Image Circle
236 mm
Front Thread Mount Size
29.5 mil
Flange Focal Distance
Shutter Size
Copal 1
Focal Length
90 mm
Lens Type Wide-angle

Technical Information

Fixed Focal Length 90 mm
Max Aperture f/4.5

Physical Characteristics

Lens Mount Board mount 42mm