Micro-Nikkor

The 5cm f/3.5 was later modified to have a slightly higher focal length of 55mm to accommodate the longer flange-focal distance of Nikon's SLR F-mount.

The Micro-Nikkor family of lenses went through a large number of revisions over the decades, the most recent models are designed for the Nikon Z-mount.

A common feature of Micro-Nikkor lenses is that they reach at least 1:2 (half life size) magnification without the need for extension rings.

Micro-Nikkor lenses frequently employ compensating diaphragms, which keep the effective aperture constant, even when magnification is changed.

The 200mm Micro-Nikkor was introduced late in the manual focus cycle of the F-mount and was replaced in 1993 with a completely redesigned autofocus lens.

[23] The apparent discontinuation of the 200mm line is likely due to relatively poor sales numbers, as the 200mm AF-D only sold approx.

[33] The perspective control PC-E lenses 85mm f/2.8 and 45mm f/2.8 ED are designated Micro-Nikkor as well, since they reach a magnification of 1:2.