Nikon Nikkor-SW 90mm f/4.5 Wide Angle Large Format Lens
Serial number: 685992
The Nikon Nikkor-SW 90mm f/4.5 is a high-speed, wide-angle large format prime lens built primarily for 4×5 view cameras (with enough coverage for 5×7 at smaller stops)
Performance & Characteristics
Focusing: Bright f/4.5 aperture makes corner-to-corner focusing on a ground glass much easier than slower wide-angles (like the 90mm f/8).
Movements: Generous image circle (235mm) permits substantial rise, fall, shift, and tilt movements on 4×5.
Sharpness: High contrast, minimal distortion, and faithful color rendition via Nikon coating.
Working Sweet Spot: Edge/coma performance improves markedly when stopped down to f/8 or smaller (optimal around f/16–f/22 for maximum depth and coverage).
Portability Tradeoff: Bulkier and heavier than the compact 90mm f/8 SW, trading field lightness for brightness
Key Specifications
Focal Length: 90mm (approx. 24.3mm full-frame equivalent for 4×5 angle-of-view perspective scale)
Maximum Aperture: f/4.5 (bright ground-glass viewing for easy composition)
Image Circle: 235mm (at f/16)
Angle of View: 105°
Optical Construction: 8 elements in multi-group configuration (Super Integrated Coating / SIC)
Shutter: Copal #0 (speeds typically T, B, 1 to 1/500 sec)
Filter Thread: 82mm
The lens is in excellent cosmetic condition, please see photo provided.
Optically clean and clear.
Aperture Selection is positive.
Shutter is working across the full range.
Iris is fast and snappy.
Tested and working.
Any questions, please ask.
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