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Pentax 645 HD DA 28-45mm F/4.5 ED AW SR Lens
Image Stabilized Lens
Weatherproof - Seals protect from dust, humidity and light splashing.
Zoom Lens
Rectilinear are normal lenses that show straight lines as straight lines.
Thread size in milimeters for screw-on filters.82
Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Lens Description
The Pentax 645 HD DA 28-45mm F/4.5 ED AW SR is an ultra-wide to normal zoom designed for cameras with a 645D (0.8X) sensor. This constant-aperture zoom covers a 28 to 45mm focal-range. It provides the same field of view as a 22.4-36mm lens on a Full-Frame camera. An optical Image Stabilization System built into this lens compensates for camera shake.
This 2X zoom lens focuses down to 40cm from the imaging plane, capturing subject with a maximum 0.21X magnification. The lens offers a Quick-Shift AF system which lets the user simply rotate the focus-ring to focus manually. While this lens is capable of AF, it does not have a built-in focus motor. It can only focus with a compatible camera body which features a mechanical AF-coupling.
The lens weighs 1.47kg. Its body is weatherproof against adverse weather such as rain and snow. Seals in key areas prevent entry of water and dust.
This lens is only available for the Pentax 645 mount. It directly attaches and is fully compatible with all Pentax 645 mount cameras with 645D (0.8X) sensors.
Focal-Range
Angle-Of-View
Maximum Aperture
Viewing Angle Range
Pentax 28-45mm F/4.5Maximum Aperture
Compared to other Pentax 645 645D (0.8X) lenses.Magnification
Weight
Pentax 645 HD DA 28-45mm F/4.5 ED AW SR Specifications
| Brand | Pentax | Model | 645 HD DA 28-45mm F/4.5 ED AW SR |
|---|---|---|---|
| Mount | Pentax 645 | Max FLM | 0.8X |
| Focal Range | 28 - 45mm | View Angle | 89 - 63° |
| Max Aperture | F/4.5 | Min Aperture | F/32 |
| Min Focus | 40cm | Magnification | 0.21X |
| Filter Size | 82mm | Aperture Blades | 9 |
| Size (D x L) | 99 x 152mm | Weight | 1470g |
| Tilt | N / A | Shift | N / A |
| Stabilization | Built-In | Protection | Weatherproof |
| Zoom Drive | Mechanic | Focus Drive | AF with Quick-Shift |
| Zoom Mechanism | External | Focus Mechanism | External |
| Hood | Bayonet | Focus Motor | External |
| Perspective | Rectilinear | Introduced | 2014-08-04 |
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Pentax 28-45mm F/4.5 Facts
Image Stabilized LensWeatherproof - Seals protect from dust, humidity and light splashing.Zoom LensRectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.82Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).| 28-45mm Focal-Range | F/4.5 Constant Aperture |
| 82mm Filter Thread | AF with Quick-Shift |
| Pentax 645 Mount | 645D (0.8X) Coverage |
| 1470g Lens Weight | 99 x 152mm (D x L) |
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