For the Konica lens mount, see Konica F-mount. The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format Single-lens reflex cameras. The company continues to use variations of the same nikon 1 j5 pdf mount specification for its film and digital SLR cameras. The F-mount has a significant degree of both backward and forward compatibility.
Nikon DX format, and industrial F-mount lenses have varying coverage. DX lenses may produce vignetting when used on film and FX cameras. However, Nikon lenses designed for film cameras will work on Nikon digital system cameras with the limitations noted above. Nikon has introduced many proprietary designations for F-mount Nikkor lenses, reflecting design variations and developments both in lenses and the F-mount itself. There are also “unofficial” designations used by collectors and dealers to differentiate similar lenses. A typical AI lens: A Nikkor 50mm 1:1.
4 showing “Nikon” engravings, rubber focus ring, and new-style Meter Coupling Prong distinguished by its cutaway sections. The lens is mounted on a Nikon FE2 camera. Designation for the first generation of F-mount lenses, introduced in 1959. 6, and then turning the ring to first the minimum and then the maximum apertures. The need for this step was eliminated by the AI system below. Early versions are marked “Nippon Kogaku Japan” and have their focal lengths stated in centimetres, but models produced after about 1965 have focal lengths stated in millimetres.
The “Nippon Kogaku Japan” engraving was replaced by “Nikon” from 1971 onwards. Warning: Mounting a non-AI lens can damage many modern Nikon camera bodies. EL2, as well as Nikon FM and FE. Not to be confused with automatic exposure or auto focus, the designation fell out of use in the early 1970s and was not carried onto K-type lenses. C — Indicates a multicoated F-type lens. Nikkors, when multicoating had become standard practice. K — “Modern” or “New” Nikkors introduced in 1974.
The scalloped-metal focus rings were replaced with rubber grip insets, and the use of element number and coating designations was discontinued. The ‘K’ designation itself is believed to be derived from the Japanese “konnichi-teki”, loosely translatable as “modern” or “contemporary”. AI — Manual focus with “Automatic Maximum-Aperture Indexing,” introduced in 1977. The AI standard adds a Meter Coupling Ridge to the aperture ring, which encodes the current aperture setting relative to the maximum, and a Lens Speed Indexing Post on the mounting flange, which encodes the maximum aperture itself. The Ridge and Post couple to the camera’s light meter.
Some independent camera repair technicians continue to offer such conversions. AI-S lenses with a focal length of 135mm or longer are indicated by a ridge on the lens mount, used by FA and F-501 to engage high-speed-biased Program Autoexposure. AF — The original autofocus designation, indicating focus driven by a motor inside the camera body. AF-N — Indicates the “New” version of an AF lens. Driven by a coreless DC motor. AF-P — Autofocus using a stepper motor.
First F-Mount lens in 2015 after being introduced 2011 in the Nikon 1-mount. Fully AF-P compatible without any firmware update are the Nikon D850, D500, D7500, D5600, D3400, Nikon-1 series with FT1 adapter and newer cameras. Fully AF-P compatible after update are the Nikon D5, D750, D610, D600, D5500 and D5300. The focus motor will not work with all film cameras and D1 to D2 series, D200, D100, D5100, D5000, D90, D80, D70 series, D3200, D3100, D3000, D60, D50, D40 and D40X.