Minolta colour-corrected enlarging lens for darkroom printing of 35mm negatives.
The Minolta C.E. Rokkor 50mm f/2.8 is a dedicated enlarging lens designed for projecting negatives onto photographic paper in the darkroom. The C.E. designation stands for Color Enlarging, indicating the lens is computed for flat-field performance with optimised colour correction across the entire projected image area.
Optical quality is excellent, as enlarging lenses must deliver corner-to-corner sharpness on a flat plane — a more demanding requirement than taking lenses which can rely on film curvature. The four-element design provides crisp, high-contrast projection of 35mm negatives with minimal distortion or chromatic aberration.
Build quality is simple and functional with a metal barrel, smooth aperture ring, and standard M39 enlarger thread mount. The lens is designed to be mounted on an enlarger's lens board and used at moderate apertures between f/5.6 and f/11, where performance is optimal for creating exhibition-quality prints in the darkroom.
On the used market, the C.E. Rokkor 50mm f/2.8 is valued by darkroom practitioners who demand high-quality optics for their enlargements. It also attracts interest from photographers repurposing enlarging lenses for macro photography, where the flat-field design delivers excellent results at close working distances.