Nikon 3.5cm (35mm) f/2.8 NIKKOR-S AI'D Nippon Kogaku Japan PAT. Pend Manual Focus Lens {52} Early Version

Nippon Kogaku's early 35mm f/2.8 NIKKOR-S, AI-converted for modern F-mount use.

The NIKKOR-S optical formula in this early Nippon Kogaku-made lens represents the company's pre-Nikon branding era, a period when Japanese optics manufacturing was establishing its global reputation. The PAT. Pend. markings place this in a narrow early production window, making it a historically specific piece of glass, not just a functional one. The AI conversion means the aperture indexing ridge has been machined to communicate with AI and AI-S bodies directly, so you're not locked into stop-down metering workarounds on the F-mount bodies that matter most.

At 35mm and f/2.8, this is a classic reportage focal length with enough speed for available-light work. The 52mm filter thread is one of the most common sizes in the Nikon F ecosystem, so existing filter kits will fit without adapters. Manual focus operation keeps the shooting process deliberate, which suits photographers who prioritize control over speed. For the price point that vintage Nikon glass typically commands, this lens offers both a usable optic and a piece of the company's manufacturing history in a single package.

Who It's For

Film photographers shooting on AI or AI-S Nikon bodies will get direct metering coupling without modification. Street and documentary photographers drawn to a 35mm field of view will find the focal length well-suited to close-in, immersive framing. Collectors focused on early Nippon Kogaku production will value the PAT. Pend. markings and early-version designation as period-specific identifiers. Photographers building a manual-focus kit on the Nikon F mount can use this across a wide range of F-mount bodies thanks to the AI conversion.

Key Features

• 35mm fixed focal length, f/2.8 maximum aperture
• Manual focus operation with full AI-mount communication
• AI'd conversion for AI and AI-S camera compatibility
• Early Nippon Kogaku manufacture with PAT. Pend. designation
• NIKKOR-S optical formula
• 52mm filter thread

FAQ

What does the AI conversion on this lens mean for my camera body?

The AI conversion machines the aperture indexing ridge so the lens communicates directly with AI and AI-S F-mount bodies, eliminating stop-down metering limitations on those cameras.

Is this lens fast enough for available-light photography?

At f/2.8, it has adequate speed for available-light work, though it's not a fast lens by modern standards - it's solidly mid-range for its focal length.

What's the significance of the "PAT. Pend." markings and Nippon Kogaku manufacture?

These markings place the lens in an early production window from the pre-Nikon branding era, making it historically specific to a narrow period when the company was establishing its global reputation.

Will my existing filters fit this lens?

Yes - the 52mm filter thread is one of the most common sizes in the Nikon F ecosystem, so standard filter kits attach without adapters.

Does this lens work with modern autofocus F-mount bodies?

No, it's manual focus only. AF-capable bodies will accept it, but you'll focus by hand and use live view or magnified viewfinder aids for precision.

What type of shooting does a 35mm f/2.8 suit best?

It's a classic reportage focal length suited to available-light work where deliberate manual focusing aligns with your priorities over speed.