These photos were made on 5x7 film, masked to the 4:5 ratio. For that format, 10 3/4 inches (273mm) is an ideal "portrait" length, similar to the traditional 9-inch lens
on 4x5 film (229mm). A 16x20 inch print is a roughly 3x enlargement. Photographs taken with lenses of classic portrait length have a subtle sense of intimacy.
The Artar is the parent of other Dialyte
symmetrical process lenses such as the APO Nikkor and APO Ronar.
The usability of Artar lenses is further enhanced when they are mounted in barrel with their original many-bladed aperture. The circular iris helps provide smooth blur rendition and round specular highlights. Small barrel-mounted lenses like the Artar can be readily front-mounted
to vintage shutters like the Alphax.
Dialyte lenses are optimized for close work but their symmetry ensures that optical corrections are good at all distances. When extreme view camera movements are required they lack the generous coverage compared to other designs but Dialyte lenses are very small and light. Under most shooting conditions they can be highly useful.