Hoya EL-50mm F/2.8 - 40d-10550

EL-50mm F/2.8 Hoya Super Enlarging Lens

Specifications:

Focal Length: 50.1 mm
Aperture: F/2.8 - F/16
Construction: 6 elements in 4 groups
Negative format: 24x36
Standard magnification: X8
Optimum magnification: 2X - 20X
Circle of coverage: 43.2mm
Corrected wavelength: 370-700 micrometres
Mount: 39mm (P=1/26")
Filter: 40.5mm (P=0.5mm)
Size: 49mm diameter, 38mm long
weight: 100g