Pentax 67 vs Mamiya 645: A Medium Format Film Camera Comparison

Medium format film photography produces images with a depth, clarity, and richness that 35mm simply cannot match. But getting into medium format means choosing a system, and the Pentax 67 and Mamiya 645 are two of the most discussed options. They represent different philosophies in medium format shooting, and understanding the difference will help you make the right choice.

Why Shoot Medium Format?

The most important difference between medium format and 35mm is negative size. A medium format negative is significantly larger, which means more detail, better dynamic range, and image quality that holds up beautifully when printed large. If you shoot landscapes, portraits, fine art, or weddings, medium format gives your images a presence that smaller formats do not replicate.

Browse our selection of medium format film cameras and 120 film to get started.

The Pentax 67: A Beast with Beautiful Results

The Pentax 67 is legendary for good reason. It shoots on a 6x7 format, giving you one of the largest negatives available in a handheld camera. The images it produces are stunning, particularly with its 105mm f/2.4 lens, which renders backgrounds with a buttery smoothness that photographers chase for years.

The tradeoff is size and weight. The Pentax 67 is a substantial camera. Holding it feels like holding a brick, and the shutter sound is loud and satisfying. This is a camera that demands your attention and rewards you for giving it. The metering system is reliable and the lens lineup is exceptional.

If you want the absolute maximum in medium format image quality from a handheld system, the Pentax 67 is hard to argue against. It is a camera built to last and built to perform.

The Mamiya 645: An Accessible Entry into Medium Format

The Mamiya 645 series, including the 645J, shoots on a 6x4.5 format. The negative is smaller than the Pentax 67 but still significantly larger than 35mm. The tradeoff is that the camera is lighter, more portable, and often more affordable, making it a popular first step into medium format.

The Mamiya 645J is particularly well suited to photographers moving up from 35mm. Its controls are intuitive, its lenses are sharp, and the 6x4.5 format gives you more frames per roll than the Pentax 67 (fifteen frames versus ten on a standard 120 roll). If you are new to medium format and want to learn without the learning curve of a heavier system, the Mamiya 645 is an excellent starting point.

Pentax 67 vs Mamiya 645: Which Is Right for You?

• Image size: Pentax 67 shoots 6x7. Mamiya 645 shoots 6x4.5. Pentax wins on sheer negative real estate.
• Weight and portability: Mamiya 645 is lighter and easier to carry. Pentax 67 is a commitment.
• Frames per roll: Mamiya 645 gives you 15 frames on 120 film. Pentax 67 gives you 10.
• Lenses: Both systems have excellent glass. The Pentax 67 105mm f/2.4 is particularly celebrated.
• Best for: Pentax 67 for studio, portrait, and landscape work where you plant yourself and shoot deliberately. Mamiya 645 for travel, events, and photographers who want to move around.

What Film to Use

Both cameras use 120 format film. For portraits, Kodak Portra 400 in 120 is the go-to. For landscapes and fine art, Kodak Ektar 100 or Fuji Velvia will produce exceptional results. For black and white work, Kodak T-Max or Ilford HP5 are reliable choices that look stunning at medium format sizes.

Medium format photography changes the way you shoot. You slow down, compose more carefully, and pay attention to every frame. The cameras above will reward that patience with images that stand apart from anything 35mm produces.

Browse our medium format cameras and 120 film collection to start shooting bigger.