Nikon 50mm f/1.4 NIKKOR-S Auto Non AI Nippon Kogaku Japan PAT Pend Manual Focus Lens, Chrome {52}

Nikon's Pre-AI 50mm f/1.4, Nippon Kogaku chrome-barrel original

This NIKKOR-S Auto 50mm f/1.4 comes from the Patent Pending era of Nippon Kogaku Japan production, placing it in the late 1960s to early 1970s when Nikon was building the reputation that made the F-mount a standard. The chrome barrel finish marks it as an early-generation piece, and the Non-AI meter coupling reflects the pre-AI coupling system that predates Nikon's 1977 aperture indexing revision. It takes 52mm filters and operates entirely by manual focus.

For shooting, this lens mounts natively on Non-AI Nikon film bodies and can be used on AI and AI-S bodies with the aperture stopped down. On modern Nikon DSLRs and mirrorless bodies, an adapter brings it into service with manual exposure. At f/1.4, you get a fast 50mm for available-light work, and stopped down it covers a wide range of general shooting. The chrome-barrel version is also a collectible object for Nikon historians, a tangible piece of the Nippon Kogaku catalog before the company rebranded its camera division as Nikon.

Who It's For

Film photographers shooting Nikon F-mount bodies from the Non-AI era get native meter coupling and the period-correct aesthetic that matches their cameras. Collectors focused on Nippon Kogaku Japan production history will recognize the Patent Pending chrome barrel as an early production marker worth owning. Manual focus shooters on adapted mirrorless systems who want a fast 50mm f/1.4 for available-light documentary or portrait work will find the focal length and aperture well-suited to the task. Anyone drawn to shooting with legacy glass on modern bodies as a deliberate practice has a historically grounded starting point here.

Key Features

• 50mm focal length with f/1.4 maximum aperture
• Manual focus operation throughout the focal range
• Non-AI meter coupling pre-dating 1977 aperture indexing
• Nikon F mount (Non-AI specification)
• 52mm filter thread
• Chrome barrel finish from Nippon Kogaku Japan era
• Patent Pending production marking from late 1960s-early 1970s
• Usable on Non-AI, AI, and AI-S bodies with aperture control considerations

FAQ

Will this Non-AI 50mm work on modern Nikon cameras?

It mounts natively on Non-AI Nikon film bodies and can be used stopped-down on AI and AI-S bodies. On modern Nikon DSLRs and mirrorless cameras, you'll need an adapter and manual exposure control.

What does the chrome barrel indicate about this lens?

The chrome finish marks it as an early-generation NIKKOR-S, produced in the late 1960s to early 1970s during the Nippon Kogaku Japan era before the company rebranded its camera division as Nikon.

What's the difference between Non-AI and AI coupling?

Non-AI uses a meter coupling system that predates Nikon's 1977 aperture indexing revision (AI). Non-AI lenses require the aperture to be stopped down manually on AI and later bodies.

What filter size does this lens take?

52mm filters thread directly onto the lens barrel.

How fast is the maximum aperture?

f/1.4, making it suitable for available-light shooting and shallow depth-of-field work.

Is this lens fully manual or does it have autofocus?

Entirely manual focus - there is no autofocus mechanism.

Why is the "PAT Pend" marking significant?

PAT Pend (Patent Pending) indicates production during Nippon Kogaku's Patent Pending era, roughly late 1960s to early 1970s, making this a documented piece of early Nikon lens catalog history.