Nikon 45mm f/2.8 P NIKKOR AIS Manual Focus Lens, Black {52}

Nikon's pancake 45mm f/2.8 AIS with CPU contacts built in.

The 45mm f/2.8 P NIKKOR is one of the few manual focus F-mount lenses Nikon ever built with CPU contacts, giving it the P designation that sets it apart from standard AIS glass. That means full electronic communication with compatible Nikon bodies, matrix metering, EXIF data, and program/aperture-priority exposure modes, without giving up the tactile manual focus experience. The 52mm filter thread is standard across a wide swath of Nikon optics, so there's no hunting for oddball filter sizes.

The pancake profile keeps the whole package genuinely compact on any F-mount body, making this a practical walk-around pairing than a specialty piece you pull out for specific assignments. At f/2.8, it sits at a workable maximum aperture for available-light shooting. The 45mm focal length lands close enough to a true normal perspective to read naturally on a full-frame body, with a slight compression that suits everyday documentary and street work.

Who It's For

Street photographers who want a discreet, slim profile on a full-frame Nikon body will appreciate the pancake form factor paired with a near-normal 45mm field of view. Film photographers shooting on AI-S compatible Nikon SLRs get the advantage of program mode exposure through the CPU contacts, a feature nearly absent on other manual focus Nikon glass. Hybrid shooters adapting F-mount lenses to mirrorless systems gain full EXIF communication where the adapter supports it. Documentary and travel photographers drawn to manual focus discipline but unwilling to sacrifice metering integration have few better F-mount options at this focal length.

Key Features

• 45mm f/2.8 manual focus lens with Nikon F AI-S mount
• P NIKKOR CPU contacts enable electronic metering and EXIF data
• Compact pancake design ideal for travel and walk-around work
• 52mm filter thread compatible with standard filter ecosystem
• Aperture-priority and program exposure modes available
• Manual focus tactile operation on all compatible Nikon bodies

FAQ

Does this lens work with modern Nikon DSLRs and mirrorless cameras?

It communicates electronically with compatible Nikon F-mount DSLRs that accept AI-S lenses - matrix metering, EXIF data, and program/aperture-priority modes all function. Nikon mirrorless bodies (Z-mount) require an FTZ adapter, which passes the CPU signal through, so you retain those conveniences.

What's the difference between this P NIKKOR and a standard AIS 45mm?

The P designation means it has CPU contacts built into the lens. That electrical connection lets it talk to your camera body for exposure metering and metadata, whereas a standard AIS lens is purely mechanical.

How does 45mm feel on full-frame versus crop-sensor bodies?

On full-frame it reads as a slight normal lens - close to human vision but with subtle compression that favors portraiture and tighter framing. On APS-C it becomes a short tele equivalent, narrowing the field of view noticeably.

Is the 52mm filter size common?

Yes. 52mm is one of the most widely available filter sizes in the industry, so finding ND, circular polarizer, or protective glass is straightforward and affordable.

Can you use this lens in full manual exposure mode?

Yes. You set both shutter speed and aperture by hand, and the meter in the camera reads the scene through the CPU contact. No automation required if you don't want it.

What kind of subjects suit a 45mm pancake lens?

The focal length and compact size make it natural for everyday street work, travel, and documentary shooting where you want a normal perspective without bulk. The f/2.8 aperture handles indoor ambient light reasonably well.