and flat-field copying. The 80 mm is a 6-element, 4-group lens with a 47° angle of coverage, while the other lenses in the line are 8-element, 4-group designs with 55° of coverage. The HM in the name indicates that these lenses use high-modulation glass elements. 85 f/2.4 HM (for 24×36 mm) for Canon EF and Nikon F mount (2014) 80mm f/5.6 (for 6×9 cm) 90 f/4.5 HM for Canon EF and Nikon F mount (2014) 120mm f/5.6 (for 5×7 in) 180mm f/5.6 (for 8×10 in) M-Componon The M-Componon is a special-purpose macro (makro) lens, designed for greater than 1:1 reproduction. 28mm f/4 (4:1 ~ 20:1) 50mm f/4 (2:1 ~ 12:1) 80mm f/4 (1:1 ~ 7:1) Variomorphot A process lens with 12 elements in 8 groups and a fixed aperture, optimized for a 1:1 reproduction ratio. It has the capability of altering the aspect ratio of the image by up to 8% without any image degradation. 480mm f/22 (for 18×20 in) Enlarger lenses These lenses are designed for work with a photographic enlarger. They have barrel mounts and many current models feature glow-in-the-dark aperture scales. Componar This is the original Schneider line of enlarging lenses, introduced in 1914. Optical designs are 3 elements in 3 groups. 26 mm f/4.5 50mm f/3,5( for 35mm) 50 mm f/4 (for 35 mm) 50 mm f/4.5 60 mm f/4 (for 4×4 cm) 75 mm f/4.5 (for 6×6 cm) 80 mm f/4.5 (for 6×7 cm) 105 mm f/4.5 (for 6×9 cm) 135 mm f/4.5 (for 4×5 in) Componar-C A 3-element, 3-group line of enlarging lenses, optimized for enlargements up to 8×. 50mm f/2.8 (for 24x36mm) 75mm f/4 (for 6×6 cm) Componar-S This was the original high-end enlarging lens line, the Componar-Satz. This is the currently available low-end enlarging lens line. They are 4-element, 3-group designs, and optimized for enlargements in the 6×-10× range. 50 mm f/2.8 80 mm f/4.5 90 mm f/4.5 105 mm f/4.5 Comparon A middle-grade (but still very good quality) line of enlarging optics. They are 4-element, 3-group, Tessar-based designs, and optimized for enlargements in the 2×-6× range. 50mm f/3.5 (for 24x36mm) 50mm f/4 75mm f/4.5 (for 6×6 cm) 105mm f/4.5 (for 6×9 cm) 135mm f/4.5 (for 4×5") 150mm f/5.6 210mm f/5.6 (for 5×7") 300mm f/5.6 (for 8×10") Componon The Componon is a high-quality enlarging lens line. These models have been largely superseded by the Componon-S units, though a few Componon lenses are