Pentax smc FA 645 150mm f/2.8 Lens
The Pentax 645 150mm f/2.8 is a 150mm f/2.8 lens designed for Pentax 645 mount cameras. Used copies start from $455.63 on GearFocus, with buyer protection on every purchase.
Pentax smc FA 645 150mm f/2.8 Lens
Used Pentax 645 150mm f/2.8 Listings on GearFocus
Lens Overview — Pentax 645 150mm f/2.8
Key Features — Pentax 645 150mm f/2.8
150mm Medium Format Prime: Fixed focal length equivalent to approximately 95mm in 35mm terms on Pentax 645 bodies, making it a natural portrait and short telephoto option.
f/2.8 Maximum Aperture: Bright maximum aperture for a medium format telephoto prime, enabling subject separation and usable light gathering in lower light conditions.
Pentax 645 Mount: Designed specifically for the Pentax 645 medium format system, optically matched to medium format sensors for full corner-to-corner coverage.
Autofocus and Manual Focus: Supports both AF and MF operation, giving photographers flexibility across portrait, nature, and studio shooting scenarios.
SMC Lens Coating: Pentax Super Multi-Coating reduces flare and ghosting, helping maintain contrast and color fidelity in backlit or high-contrast situations.
67mm Filter Thread: Common filter diameter that keeps the cost of UV, polarizing, and ND filter accessories reasonable.
Lens Specifications — Pentax 645 150mm f/2.8
| Spec | Detail |
|---|---|
| Use Cases | Studio |
| Lens Type | Prime |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 150mm |
| Maximum Aperture | f/2.8 |
| Camera System | Medium Format |
| Lens Mount | Pentax 645 |
| Autofocus | Yes |
| Focus Type | Manual, Auto |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — Pentax 645 150mm f/2.8
The Pentax smc FA 645 150mm f/2.8 is a prime telephoto lens purpose-built for the Pentax 645 mount and the medium format camera system. With a maximum aperture of f/2.8, it provides solid light-gathering performance and depth-of-field control that medium format photographers value for subjects like portraiture and detail-focused telephoto work. The lens offers both autofocus and manual focus modes, giving users the flexibility to choose their preferred method of operation.
A 67mm filter thread makes it straightforward to attach widely available circular filters. At 515g, the lens is reasonably sized for its format and focal length. There is no image stabilization, so steady technique or physical support is advisable in lower-light or slower-shutter-speed conditions.
As a dedicated medium format prime, this lens is optimized for use within the Pentax 645 system.
Pros — Pentax 645 150mm f/2.8
- ✓Bright f/2.8 maximum aperture for a medium format telephoto prime
- ✓Supports both autofocus and manual focus operation
- ✓Designed specifically for the medium format lens format, matched to Pentax 645 system bodies
Cons — Pentax 645 150mm f/2.8
- ✗No image stabilization, requiring careful technique or support at slower shutter speeds
- ✗Fixed 150mm focal length offers no zoom flexibility
- ✗Compatible only with Pentax 645 mount bodies, limiting the user base
Videos — Pentax 645 150mm f/2.8
Pentax 645 - A Return to My First Film Camera (and why gear matters) — Kyle McDougall