Contax 45mm f/2 Zeiss Planar T* Lens for G-Series, Titanium {46}

Zeiss Planar optics for the Contax G rangefinder system.

The 45mm f/2 Zeiss Planar T* is the standard lens for the Contax G-Series rangefinder system, and it earns that role on optical merit than convention. The Planar design is one of the most proven double-Gauss configurations in photography, and Zeiss built this version with their T* multi-coating to control flare and hold contrast across the frame. At 45mm on a 35mm camera, the field of view sits just slightly longer than a classic 35, making it a natural choice for shooting that demands a touch more compression than a wide lens delivers. The 46mm filter thread keeps the physical profile compact, consistent with the G-Series system's design philosophy.

The titanium finish on this version isn't cosmetic distinction alone, it matches the G1 and G2 titanium camera bodies, keeping a matched kit for photographers who assembled that pairing. At f/2, there's enough aperture to work in dim available light without flash, and the Planar rendering at open apertures has a character that film photographers specifically seek out. For anyone shooting the Contax G system, this is the lens you build around.

Who It's For

Street and documentary photographers shooting Contax G bodies get a 45mm perspective that reads as natural without going wide, and the f/2 maximum aperture handles interior or low-light work without forcing a flash. Film photographers drawn to the Zeiss Planar rendering at wide apertures will find this the core lens of the G system. Travel shooters who want compact rangefinder gear benefit from the small filter thread and the overall slim profile the G-Series was built around. Collectors and shooters who run titanium G1 or G2 bodies will want this version specifically for a visually matched kit.

Key Features

• Zeiss Planar T* double-Gauss optical design
• 45mm focal length for subtle compression on 35mm film
• f/2 maximum aperture for available-light shooting
• 46mm filter thread for compact profile
• Titanium finish matches G1 and G2 bodies
• Contax G-Series rangefinder mount

FAQ

What's the actual field of view on a 35mm camera with this 45mm lens?

It's slightly longer than a standard 35mm, giving you a touch more compression and framing flexibility without the wider perspective of a true wide lens.

Does the titanium finish serve a purpose beyond looks?

Yes - it matches the G1 and G2 titanium camera bodies, so you can build a cohesive kit if you went that route.

How does the Zeiss Planar design perform at f/2?

The Planar is a proven double-Gauss configuration with character at open apertures that film photographers specifically seek out, especially in dim available light without flash.

What does the T* coating do?

Zeiss's T* multi-coating controls flare and holds contrast across the frame, which matters on a rangefinder where you're often framing against bright backgrounds.

What filter size do I need?

46mm - the compact thread size keeps the physical profile minimal, consistent with the G-Series system design.

Is this lens weather-sealed?

No weather sealing is documented for this lens; it's built to the standard for film-era Contax G optics.

Can I use this on a digital Contax G camera if one exists?

No - the Contax G mount was exclusive to film cameras and the rangefinder system. There is no digital Contax G body.