lens:pen645smcls75mmf2.8
Table of Contents
Pentax 645 SMC 75mm f/2.8 Leaf Shutter
Summary
Normal lens in the 645 film format. In the 645 digital format it has the field of view of a short telephoto lens. The lens is manual focus only. This lens has a built-in leaf shutter which allows for high speed flash synchronization. The top speed with flash is 1/500s. The flash must be connected to the lens with an X-synch cord. The lens can also be used without the leaf shutter as an ordinary 645 lens. It has no A setting so Program and Tv exposure modes are not supported. While the lens was designed for use on Pentax 645 film cameras it will also work on the 645D and 645Z.
Tech Specs
| Manufacturer | Pentax |
| Series | Pentax Leaf Shutter |
| Model | 645 SMC |
| Focal Length | 75mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Format | 645 film |
| Image Circle | - |
| Minimum Focus | 75cm |
| Focus Rotation | ° |
| Iris Blades | 5 |
| Optical Design | 6/5 |
| Squeeze | none |
| Front Diameter | 76mm |
| Filter Thread | 58mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax 645 |
| Data Protocol | none |
| Length | 49.5mm |
| Weight | 365g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date:
Launch Price:
Design Revisions:
Service
Cine-Mod
Notes
Media
lens/pen645smcls75mmf2.8.txt · Last modified: 2026/07/02 06:17UTC by Justin Rhoads