PENTAX 645N Medium Format Camera
The Pentax 645N is a Medium Format medium format camera — known for its Pentax 645 Lens Mount and Phase Detection Autofocus. Used copies start from $601.97 on GearFocus, with buyer protection on every purchase.
PENTAX 645N Medium Format Camera
Used Pentax 645N Listings on GearFocus
Overview — Pentax 645N
Key Features — Pentax 645N
Pentax 645 Lens Mount: Compatible with the full range of Pentax 645 lenses, giving access to a well-regarded system of medium format glass spanning wide-angle to telephoto focal lengths.
Phase Detection Autofocus: Multi-point phase detection AF sets the 645N apart from most medium format film cameras, enabling faster and more reliable focus acquisition during a shoot.
120 and 220 Film Support: Accepts both 120 and 220 roll film, allowing shooters to choose between standard 15/16 exposures or the longer 30/32-exposure rolls for extended sessions.
ISO 6–6400 Film Range: Wide DX-coded film speed range accommodates everything from slow, fine-grain films in bright light to fast stocks in low-light environments.
Metal Alloy Construction: Solid metal body at 1,430g delivers the durability and rigidity expected from a professional medium format system built for regular use.
Optical Viewfinder: Direct optical viewing provides a clear, real-time view of the scene with no electronic lag, suited to deliberate medium format shooting workflows.
Specifications — Pentax 645N
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Landscape, Studio, Fashion |
| Type | Medium Format |
| Sensor | Medium Format |
| ISO Range | 6 – 6400 |
| AF System | Phase Detection |
| AF Points | Multiple |
| Image Stabilization | None |
| Viewfinder | Optical |
| Storage Media | Other |
| Battery | 6x AA Batteries |
| Weather Sealing | None |
| Dimensions | 156 x 117 x 137 mm |
Description — Pentax 645N
The Pentax 645N is a medium format film camera built on the Pentax 645 lens mount, combining a capable autofocus system with the image quality that medium format film delivers. The body is constructed from metal alloy and measures 156 x 117 x 137mm, weighing in at 1,430g — a solid, well-built package suited to both studio and field use. Film loading supports 120 and 220 roll film, giving photographers control over how many exposures they work with per session.
The phase detection autofocus system with multiple focus points sets this camera apart from many medium format film bodies that rely entirely on manual focus. ISO sensitivity spans 6 to 6400, accommodating bright outdoor shooting as well as lower-light scenarios. An optical viewfinder offers a clear, direct view for composition and framing.
Flash shooting is handled through the Pentax Standard TTL hot shoe, enabling metered flash with compatible units. Power is supplied by 6x AA batteries, ensuring easy access to replacements in the field. Note that no weather sealing is present and there is no image stabilization in any form.
Pros — Pentax 645N
- ✓Phase detection autofocus with multiple focus points — uncommon in medium format film cameras
- ✓Wide ISO range from 6 to 6400 suits diverse lighting conditions
- ✓Accepts both 120 and 220 roll film for flexible shooting sessions
Cons — Pentax 645N
- ✗No weather sealing, limiting use in rain or dusty environments
- ✗No image stabilization of any kind (optical, in-body, or digital)
- ✗Body weight of 1,430g is considerable for extended handheld shooting
Videos — Pentax 645N
Pentax 645N Review — Kyle McDougall
Frequently Asked Questions — Pentax 645N
What film formats does the Pentax 645N accept?+
The Pentax 645N accepts both 120 and 220 roll film. This gives photographers the option to shoot a shorter roll with 120 or load more exposures with 220 film depending on their needs.
Does the Pentax 645N have autofocus?+
Yes, the camera uses a phase detection autofocus system with multiple focus points. This is a practical advantage over fully manual medium format film cameras.
What batteries does the Pentax 645N use?+
The camera runs on six AA batteries, which are widely available and easy to replace in virtually any location around the world.
Is the Pentax 645N weather sealed?+
No, the specifications list weather sealing as none. Photographers should take precautions to protect the camera in wet or dusty conditions.
What lenses are compatible with the Pentax 645N?+
The Pentax 645N uses the Pentax 645 lens mount. Shooters should look for lenses designed specifically for the Pentax 645 system.
What flash system does the Pentax 645N support?+
The camera features a Pentax Standard TTL hot shoe and supports the Pentax TTL flash system, enabling through-the-lens metered flash exposure with compatible flash units.