Nikon's 35mm half-frame enlarging lens — the EL-Nikkor 40mm for specialised printing.
The Nikon EL-Nikkor 40mm f/4 is a specialised enlarging lens designed for half-frame and smaller format darkroom printing. The 40mm is shorter than the standard 50mm — serving smaller negatives that require less projection distance. EL-Nikkor quality throughout. A specialist enlarging optic for non-standard small format printing.
EL-Nikkor quality applied to small format enlarging — outstanding flat-field correction. The 40mm serves half-frame 35mm (18x24mm) and similar small negatives. Nikon precision. The smaller format demands excellent optical quality to produce acceptable enlargements from the tiny negatives. The EL-Nikkor delivers.
No camera mount — enlarger thread. Weight minimal. Build quality excellent Nikon. The 40mm is specialist — for half-frame and small format rather than standard 35mm. Can be adapted for digital macro — the 40mm provides a different magnification range than the 50mm when adapted via extension tubes.
Very cheap. Specialist EL-Nikkor for small format enlarging. Nikon quality. Can be adapted for digital macro at different magnification than 50mm. Only for half-frame darkroom printers or macro adaptation at this focal length. The 50mm f/2.8 is preferred for standard 35mm.