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Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW (Black)

BH #PE10028EDB • MFR #20320
8 reviews
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Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW (Black)
Key Features
  • K-Mount Lens/ Full-Frame Format
  • Aperture Range: f/2.8-f/32
  • Minimum Focus Distance: 5.1"
  • ED and Anomalous Dispersion Elements
The HD Pentax-D FA Macro 100mm f/2.8 ED AW from Pentax incorporates an updated optical design and technology to optimize image resolution and contrast and to deliver clear, high-quality images. It is the first Pentax macro lens to feature an AW (All Weather) dustproof, weather-resistant design for high performance in demanding shooting conditions. It can be used under snowy, misty, or rainy conditions and in harsh environments prone to splashing or spraying water.
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Pentax FA 100mm f/2.8 Macro AW Overview

By B&H Photo's

The HD Pentax-D FA Macro 100mm f/2.8 ED AW from Pentax incorporates an updated optical design and technology to optimize image resolution and contrast and to deliver clear, high-quality images. It is the first Pentax macro lens to feature an AW (All Weather) dustproof, weather-resistant design for high performance in demanding shooting conditions. It can be used under snowy, misty, or rainy conditions and in harsh environments prone to splashing or spraying water.

Boasting a minimum focus working distance of just 5.1", this lightweight lens also incorporates a rounded eight-blade circular diaphragm that produces a natural bokeh effect at aperture f/5.6 or above. The durable black aluminum lens barrel is designed to complement the color of a camera body.

HD Lens Coating
This lens features the PENTAX-developed HD coating, a high grade, multi-layer coating that reduces average reflectance in the visible ray spectrum to less than 50 percent when compared to conventional coatings, allowing the user to capture high-contrast images free of flare and ghosting.
Camera Body-Based Autofocus
The body-based autofocus system offers smooth & quiet performance in conjunction with the FREE (Fixed Rear Element Extension) focusing system.
Quick-Shift Focus System
The innovative focus system allows the photographer to instantly shift the focus mode from auto to manual by rotating the focus ring after the subject has been captured by the camera's autofocus system. This single-action operation eliminates the need for focus-mode switching during fast-action outdoor shooting.
Dust-Proof, Weather-Resistant Construction and Durable Aluminum Barrel
With seven special seals to prevent intrusion of water, moisture, and dust, this is the first lens of the "Limited" series to feature the PENTAX-original weather-resistant construction. The durable aluminum alloy barrel and weather-sealing allow this to perform in almost any shooting conditions, including snow, mist, rain, or other harsh environments.
Life-Size Magnification
This 100mm, short-telephoto macro lens provides life-size magnification and a working distance of 5.1" from the subject to the front of lens or 12" from the subject to the image sensor plane.
Full-Frame or APS-C Compatible
When used on a film camera or a DSLR with a full-frame image sensor this 100mm lens has a 24.5° angle of view. When used on an ASP-C camera, it is the 35mm equivalent of a 135mm lens with and angle of view of 16°.
SP Super Protect Lens Coating
PENTAX SP (Super Protect) coating on the front lens element repels dust, water, and grease to keep the lens clean and images sharp.
Rounded 8-Blade Diaphragm Blades
The rounded eight-blade diaphragm produces gorgeous bokeh effects at the apertures wider than f/5.6 while minimizing streaking effects from point light sources.
Optical Design
One ED (Extra-low Dispersion) element and two Anomalous Dispersion glass elements deliver clear, high-resolution imagery with edge-to-edge sharpness to compensate for various aberrations and minimize purple fringing.
UPC: 027075304857

Pentax FA 100mm f/2.8 Macro AWSpecs

Key Specs
Focal Length
100mm
Maximum Aperture
f/2.8
Lens Mount
Pentax K
Lens Format Coverage
Full-Frame
Focus Type
Autofocus
Image Stabilization
No
Filter Size
49 mm (Front)
Maximum Aperture
f/2.8
Minimum Aperture
f/32
Lens Mount
Pentax K
Lens Format Coverage
Full-Frame
Angle of View
24.5°
Minimum Focus Distance
5.1" / 13 cm
Maximum Magnification
1x
Macro Reproduction Ratio
1:1
Optical Design
10 Elements in 8 Groups
Diaphragm Blades
8, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
49 mm (Front)
Dimensions (ø x L)
2.6 x 3.2" / 65 x 80.5 mm
Weight
12.3 oz / 348 g
Packaging Info
Package Weight
1.265 lb
Box Dimensions (LxWxH)
5.6 x 5.2 x 4.1"

Pentax FA 100mm f/2.8 Macro AW Reviews

See any errors on this page? Let us know

Has it been confirmed with Pentax that this ...

Has it been confirmed with Pentax that this features an in-lens DC autofocus motor? I have not seen this reported anywhere else.
Asked by: Colin
NO. The lens has no in-lens DC autofocus motor. It relies on the AF motor in the camera.
Answered by: Chris
Date published: 2023-05-02

Does this need an adapter to use on an APS-C?

Does this need an adapter to use on an APS-C?
Asked by: Nancy
The Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW (Black) can be used on both full frame and APS-C frame sensors directly.
Answered by: Dan W
Date published: 2024-10-06

Can this lens be used on a K-5?

Can this lens be used on a K-5?
Asked by: Peter
Yes the Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW is compatible with the Pentax K5 camera.
Answered by: Dan W
Date published: 2022-11-04

I have a Pentax K20. I've wanted a macro lens for ...

I have a Pentax K20. I've wanted a macro lens for ages. Is this lens compatible with my K20?
Asked by: Jennifer
Yes, this Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW (Black) is compatible with the Pentax K20.
Answered by: Idris A
Date published: 2024-12-05

How long does it extend at 1:1 magnification?

How long does it extend at 1:1 magnification?
Asked by: Alin
The lens almost doubles it's length when focuse at 1:1 magnification. The extension is almost as long as the length of the included lens hood.
Answered by: Chris
Date published: 2023-05-02
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