Pentax 100mm D-FA f2.8 Macro WR

The smc PENTAX-D FA 100mm f/2.8 WR macro is designed for digital and film SLR cameras. The aluminium construction with weather resistant seals means you can get the picture whatever the weather.

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Price of Goods: £429.00

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Pentax 100 mm D-FA  f/2,8 Macro WR

Life size macro photography in the field whatever the weather.

  • Weather resistant construction
  • Rounded diaphragm blade
  • "Quick-shift" focusing system
  • Super protection coating

The smc PENTAX-D FA 100mm f/2.8 WR macro is designed for digital and film SLR cameras. The aluminium construction with weather resistant seals means you can get the picture whatever the weather. It utilizes curvature and positioning of optical elements to virtually eliminate flare and ghosting for clear, high-quality images particularly important to digital photography. This versatile lens can also be used a telephoto lens and is excellent for portraits. Achieving life-size (1:1) magnification it features our acclaimed multi-layer coating to lower surface reflection, reduce ultraviolet rays, and deliver clear, high-contrast images. Part number: 21910

Technical Specifications
Focal Length 100mm
Equivalent to 35mm format 153mm
Maximum aperture f/2.8
Minimum aperture f/32
Number of Diaphragm Blades 8
Angle of View

16 degrees (with PENTAX DSLR)

24.5 degrees (with PENTAX film SLR)

Construction 9 elements / 8 groups
Focusing Range 30.3cm - infinity
Magnification 1:1 (1x)
Filter size 49mm
Mount Pentax KAF
Weight 340g
Dimensions (Length x Diameter) 80.5mm x 65mm
Kit Content



Lens cap

Special Features


Rounded diaphram blades

"Quick shift" focus system

Super Protect lens coating



Pentax 100mm D-FA f2.8 Macro WR reviews verified by reevoo
Verified reviews of Pentax 100mm D-FA f2.8 Macro WR

out of 10

3 reviews

Ease of use
Value for money
Overall rating
Scores 9.7 out of 10 based on 3 reviews
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out of 10


Effective macro with good focus mechanism.
It does tend to hunt on the auto focus when close in, but since I would tend to be using manual for this work, not really an issue.
Confirmed purchase: 25 January 2018
Published on: 18 February 2018
out of 10


Didcot, Oxon. GB Nothing more
This lens replaced an old (pre-digital)Pentax 100mm Macro. Preliminary images from the new one and my K3 II indicate a great general improvement. They are sharper and I am able to fill the frame from a greater distance - a great advantage for butterfly and other insect images. It seems easier to get a well-out-of-focus background than when using the old lens.
None so far, but use has been limited.
Confirmed purchase: 21 December 2017
Published on: 06 February 2018
out of 10


Blackpool GB No
Very good macro i.e sharp and has a pleasing bokeh with the rounded aperture blades. WR is great for outdoor shooting as well. Small & compact easy to fit in camera bag.
The only criticism I could think was, (and has been noted by a few users) is that it can hunt around to find focus. The reason is it has a big focus throw and sometimes wants to pinpoint the exact focus. It can be used in manual for more intricate work anyway so not a real problem.
Confirmed purchase: 14 February 2017
Published on: 01 March 2017

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